Yz125 Compression

it eventually stahlls out. Motorcycles Reviews Yamaha Dirt bikes. Try service honda for a manual. Here are some data on the relationship between compression ratio and compression. 2006 Yamaha YZ 125 pictures, prices, information, and specifications. I checked the reeds and they are fine. 94 mm big bore cylinder. I've never had a bike of my own, but I've ridden. The first thing I do, when a non running bike comes in, is to run a compression test. For a video on the construction of this YZ125 project, click on the image. Please remember that sometimes the stock OEM jetting will work just fine, other times you may have to make an adjustment, so use our suggestions below as a guide to help with your jetting problem. I just bought the bike, and me and my father are going over the whole bike. the bike runs great, pulls hard, starts right up so i assumed everything was good. Platinum Powersports in Rockford, MI, features new & yamaha, used motorcycles for sale, service, and parts near Grand Rapids, Wyoming, Muskegon, and Lansing. The 125cc liquid-cooled 2-stroke is the most fun you can have on two wheels. 8160 Assembly // Yamaha YZ125 2005 - 2019. For a video on the construction of this YZ125 project, click on the image. 2006 Yamaha YZ125. on the ride and you will be amazed at the light handling and the simple fun the YZ125 provides. Seized up crankshaft bearings. Carburetion and ignition may be good, and compression tests may show that the engine's upper end is satisfactory. We use cookies to provide and improve our services. Factory Connection utilizes this proven product in virtually every shock Revalve in those models that have a High Speed Compression Adjuster Spring to improve performance. Also for: Yz125lc, Yz125p1, Yz125(p). You have to add crankcase compression to the compression ratio of the cylinder. The bike starts relatively easily (has lots of compression so needs a good kick) and revs cleanly and pulls very very well through all the gears. For this week’s GP’s Classic Steel we are going to take a look back at the 1991 Yamaha YZ125. Also for: Yz125. Im purchasing a leftover 06 125 for MX. The ability to turn in on a 20c coin and stick like glue to a line you didn't even think existed really opens up your mind as you look to find the most creative way. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. The YZ125 is the perfect choice for riders moving up onto a big wheel, or for riders who just want to experience the scalpel like qualities of motocross at the precision end of the scale. Ideal Balance: A pure motocross machine, the light and nimble YZ125 is the perfect choice for riders stepping up from the 85cc class. For this week's GP's Classic Steel we are going to take a look back at the 1991 Yamaha YZ125. I checked my compression on my YZ 125, 145 PSI. Japanese Online shop of motorcycle parts and accessories. Best Answer: Normal compression should be between 150-180. Inventory Unit Detail Niehaus Cycle Sales Litchfield, IL (217) 324-6565. Well Im back with another question. Thousands of quality photographs featuring Ducati, Moto Guzzi, MV Agusta and numerous other marques. 1979 yamaha yz125 wont start please help My dad has brought home his old dirt bike from when he was a kid. The revised exhaust brings the Yamaha Power Valve System, maxing out the mid-range torque for an even better, more confident ride when the going gets tough. When an engine failure occurs, the piston is likely to take the brunt of the damage. The GYTR High Compression Piston Kit provides a performance boost throughout the RPM range while maintaining a high level of durability. Awesome 87 yz125 needs rings no compression left SO Does not run! Missing cdi and exhaust to be complete extra motor that’s locked up for parts comes with bike. March 25, 2019. The Yamaha YZ125 has resurfaced, thanks to its new-for-2015 look. Yamaha Yz125 Service Manual Repair 2006 Yz 125 DOWNLOAD HERE. For 2015 we have re-designed the YZ125's bodywork to provide a more modern and aggressive appearance; among other changes. View and Download YAMAHA YZ125(V) owner's service manual online. Lightweight front and rear calipers with aluminum pistons and anti-bubble front master cylinder, 250mm floating front and 245mm rear discs, deliver strong stopping power with progressive feel. Opposing clamps guarantee an even better functioning of the fork and are more stable than ever. Hit the jump for more information on the 2013 Yamaha YZ125. High-Compression Pistons work equally well on stock or modified motors with the same results, more power at every rpm. This is the most economical way to go (see TSPS T Series T-handle version) but only available for the early model. Shop online for OEM Cylinder Head parts that fit your 2002 Yamaha YZ125 (YZ125P), search all our OEM Parts or call at 800. Yamaha keeps pushing hard on its YZ motocross line, today showing a revamped 2020 YZ450F featuring a new engine and chassis. Reason for sale need a car 07511931110. yamaha yz 125 2005-2006 d. Below is the information on the 2006 Yamaha YZ 125. Compression Test Results(YZ125) Whats up guys. F1MOTO YZ125 PISTON CYLINDER HEAD SQUISH SETTING - Duration: 5:53. Enter your e-mail to join the 2019 Yamaha YZ125 forum and get notification of answers and new messages about this bike. For 2015 we have re-designed the YZ125's bodywork to provide a more modern and aggressive appearance; among other changes. By editorial staff. In fact, it’s been called the best-handling dirt bike in the world. Two Stroke Tour De Force… So, just how good a machine is this? Well, roll out its ample collection of "Bike of the Year" awards and 125 Supercross titles, for starters. The GYTR High Compression Piston Kit provides a performance boost throughout the RPM range while maintaining a high level of durability. Yamaha Yz125 Service Manual Repair 2004 Yz 125 DOWNLOAD HERE. The engine generates 37. 14 foot-pounds of torque. yamaha yz 125 2005-2006 d. The engine produces a maximum peak output power of and a maximum torque of. For Rocks, Roots, and Potholes, adjust to soften compression, slow rebound. 9:1 Compression 2001 Yamaha YZ125 Offroad Motorcycle. The MotoSport. my ride – mikael persson’s yamaha yz 125 How Mikael Persson has turned a shop bought Yamaha YZ125 into an EWC winning machine… Concluding the EWC GP of Greece with a double victory on this Yamaha YZ 125, Mikael Persson is now second in Youth Cup, six points behind leader Joser Garcia. Here are some data on the relationship between compression ratio and compression. Model: Bore x Stroke (mm) Displ. 2013 - 2014. 94 mm big bore cylinder. Motorcycles Reviews Yamaha Dirt bikes. Seized rod bearings. My main concern. Normally for a compression tool to be effective you should have a fresh top end, then record your reading and check every so often. YZ125 and YZ250 Compression Testing. RACE-READY FEATURES: The YZ125 is ready to race out of the crate, complete with an aluminum handlebar, titanium foot pegs and gripper seat. history In the 1970’s, Yamaha was manufacturing three distinct off road motorcycles but unfortunately, nothing existed for the serious “Enduro” enthusiast. A: This particular piston is only available in one size and is specifically for the Yamaha YZ125 & Kawasaki KX125 Athena factory cylinder kits. The engine was rebuilt just before I purchased it. First offered in 1998 at 400cc, it shared many components and design concepts with the YZ400F motocross model. Of course, the newer the better, but even a 1999 YZ125 is a great bike to get started in this awesome sport. Instant download of the factory repair manual for the 2006 Yamaha YZ125 two-stroke bike. Steve explains how to check uncorrected compression ratio using volume measuring tools. Instant download of the factory repair manual for the 2004 Yamaha YZ125 two-stroke bike. 46mm kayaba inverted telescopic fork, 11. These things were competitive in the novice class into the early 80s after water cooling and single shocks came on the scene. Based on the long-running Yamaha YZ125 motocrosser racer, the 2020 Yamaha YZ125X hits the GNCC and hare scrambles cross-country courses with a motor and chassis tuned to off-road racing. Good plastic This bike is ready to ride or race. Aggressive YZ Family Styling. It sports the same effortless handling of the smaller bikes, but when it comes to punch, this machine has plenty to offer. The linkages usually are spring loaded. 01 with $0 down. Yamaha needs to reinvent the YZ125 to get buyers to stop buying the old ones. Aggressive YZ Family Styling. One of the strokes is the compression stroke, where the engine compresses a cylinder-full of air and gas into a much smaller volume before igniting it with a spark plug. The Italian made Athena Big Bore Kits include - 58mm Big Bore Cylinder 144cc - Cylinder Head - Athena Top End Gasket set with Head Gasket, Base & Exhaust Gasket -. For those who prefer to have the most fun possible on a motocross track, the YZ125 2-stroke is the bike of choice. The piston crown opens and closes the exhaust and transfer ports. GNCC®-TUNED YZ125 POWER: Based on the legendary 125cc liquid-cooled, reed-valve-inducted YZ two-stroke engine, the YZ125X utilizes a revised compression ratio, Yamaha Power Valve System (YPVS) timing, and a model-specific CDI unit—all focused on creating broad power delivery that suits off-road terrain and a wide range of rider skill levels. The use of the word "Yamaha" or any specific model designation is purely for informational purposes to assist users of this site and in no way indicate any endorsement by or approval of this site by Yamaha Motor Corporation. If it is higher, there could be carbon build up, I didn't want to take apart the top end, but if I have to I will. Disclaimer: This product is intended for closed-course racing only and the parts contained in this kit are not for aircraft use. 2004 Yamaha YZ125. With some necessary protection upgrades like a skid plate and handguards along with an oversized tank, the YZ is ready to rip the trails and make it back to the truck in one piece worry-free. Ultra lightweight means nimble handling with less fatigue. YAMAHA YZ125 2002 - 2003. I've never had a bike of my own, but I've ridden. Yamaha Yz125 Service Manual Repair 2003 Yz 125 DOWNLOAD HERE Instant download of the factory repair manual for the 2003 Yamaha YZ125 two-stroke bike. Top-end kit should be here Tuesday hopefully. Riding the 2018 Yamaha YZ125 is everything we have come to expect out of a small displacement two-stroke, and that's a good thing! With no major changes over the last several years, and having. East Bay Motorsports is a powersports dealership located in Hayward, CA. Lowest price guaranteed! Free shipping $49+! Size charts and product reviews! Find Motion Pro | Cable Throttle Yam Yz125 | 50355 along with 100+ other styles in our Parts category. Telephone (07) 867 7524. The 125cc liquid-cooled 2-stroke is the most fun you can have on two wheels. ^ 2019 YZ125 (2-Stroke) on a 60-month term at 4. The guy i got it from said it has a fresh top end (dont they all). Two-Stroke Power; Amazingly compact 124cc reed-valve-inducted two-stroke helps produce an awesome power-to-weight ratio. After a few races. If a cylinder has low compression, inject approximately 15 ml (one tablespoon) of engine oil into the combustion chamber through the spark plug hole, recheck the compression and record the reading. If you would like to get a quote on a new 2006 Yamaha YZ 125 use our Build Your Own tool, or Compare this bike to other Off-Road motorcycles. It currently has a 450 cc (27 cu in) liquid-cooled single-cylinder engine. The Wiseco Piston Kit is not just a basic piston replacement, it is a performance piston kit that is more durable than O. 2016 Yamaha YZ125 on www. Yz 125 2004 with 2016 plastics, the last one before the ally frame has full doma racing pipe and excel rims very clean bike for year beats any of the newer model 125s, been well looked after just had new piston and gaskets so compression is very good. Many owners of two-stroke bikes are plagued by hard starting and generally poor running, for which there seems to be no cause. Reason for sale need a car 07511931110. com Wiseco Pro-Lite Piston Kit - 2-Stroke includes one of each of the following components with the following attributes:. A brawny 124cc liquid-cooled 2-stroke engine delivers more punch than you'd expect, and manual 5-speed transmission provides excellent control across then whole rpm range. From basic maintenance to troubleshooting to complete overhaul of your Yamaha YZ125 1994-2001, Clymer manuals provide the information you need. Yamaha needs to reinvent the YZ125 to get buyers to stop buying the old ones. Yamaha Yz125 Service Manual Repair 2004 Yz 125 DOWNLOAD HERE. Each throttle cable consists of a black PVC outer jacket for maximum flexibility and durability. Here’s our hand-picked list of engine parts for your Yamaha YZ125 with universal parts included (Choose another motorcycle). do NOT contact me with unsolicited services or offers. The compression assembly will be working against a vacuum created by the fluid. We offer a complete line of high performance heads for all the popular 2-Stroke motorcycles and Yamaha Banshees. Air Raiders To make it big in motocross you've got to put the hours in at the racetrack. The use of the word "Yamaha" or any specific model designation is purely for informational purposes to assist users of this site and in no way indicate any endorsement by or approval of this site by Yamaha Motor Corporation. The model was launched in 1974 and has been regularly updated, and is one of the only two-stroke bikes of this displacement still in production, with new releases every year. 94 mm big bore cylinder. my ride - mikael persson's yamaha yz 125 How Mikael Persson has turned a shop bought Yamaha YZ125 into an EWC winning machine… Concluding the EWC GP of Greece with a double victory on this Yamaha YZ 125, Mikael Persson is now second in Youth Cup, six points behind leader Joser Garcia. Phathead Racing is proud to offer high quality CNC machined from billet, performance 2-stroke heads at the very best prices. Well Im back with another question. I'd like to base my rebuilds on how the compression reads if that's a smart thing to do. Heat is the enemy of especially 2 stroke engines, as the race goes on and the engine gets hotter, the power drops off. The lower-compression head had a unique combustion chamber shape, to make the two-stroke more rideable. includes all inner and outer internals complete with suspension seals and oil. Maximum compression velocities often range from two to six times greater than those during rebound. ? I have a 1995 YZ 125 and I just put a ffesh top end in it. If the cylinder is within specification and you are only going to put in a new set of rings, you must hone the cylinder to break the glaze. You will be delighted with the difference in performance especially low/mid, which is what suffers most from low compression. Buy 1998-2001 Yamaha YZ125 Dirt Bike Engine Piston Kit [Bore Size (mm): 53. Get the latest Specifications for Yamaha YZ 125 2003 Motorcycle from mbike. Is there any 2015 YZ 125 Manuals about? Reply. The rest of the clickers only control the 1st half of the suspension stroke i. But I’ve taken into consideration the high octane fuel I’ve used is not a great option for 2 strokes as it has a high detonation therefore works better under higher compression, which means unburnt fuel and oil fouling the plug. The rearward-slanted cylinder houses a higher compression piston with low friction rings attached to a longer connecting rod. com FREE DELIVERY possible on eligible purchases. The 2013 Yamaha YZ125 is a very good bike to make the transition from the small-displacement kids' motorcycles to the very serious quarter-liter machines. 9:1 Compression 2001 Yamaha YZ125 Offroad Motorcycle. Also for: Yz125lc, Yz 125, Yz125n1, Yz125(n). This product is made of high-quality materials to serve you for years to come. The YZ125 is the perfect choice for riders moving up onto a big wheel, or for riders who just want to experience the scalpel like qualities of motocross at the precision end of the scale. Purchaser acknowledges that they have the expertise as to the intended use of this product, and therefore assumes all risk and liability resulting from use of the product, whether used singly or in combination with other products. Get the latest Specifications for Yamaha YZ 125 2003 Motorcycle from mbike. Telephone (07) 867 7524. RACE-READY FEATURES: The YZ125 is ready to race out of the crate, complete with an aluminum handlebar, titanium foot pegs and gripper seat. View comments, questions and answers at the 2018 Yamaha YZ125 discussion group. New Models Northern Power Sports Fairbanks, AK (907) 452-2762. The YZ125 is the perfect transition from a YZ85 to a YZ250F. Normally for a compression tool to be effective you should have a fresh top end, then record your reading and check every so often. do NOT contact me with unsolicited services or offers. Here’s our hand-picked list of engine parts for your Yamaha YZ125 with universal parts included (Choose another motorcycle). Yz 125 2004 with 2016 plastics, the last one before the ally frame has full doma racing pipe and excel rims very clean bike for year beats any of the newer model 125s, been well looked after just had new piston and gaskets so compression is very good. Motorcycles Reviews Yamaha Dirt bikes. The 125cc liquid-cooled 2-stroke is the most fun you can have on two wheels. We offer a complete line of high performance heads for all the popular 2-Stroke motorcycles and Yamaha Banshees. We carry the latest Honda, Kawasaki, Suzuki and Yamaha models. The powervalve DOES change compression, but its main function is to change the exhaust port height to match rpm's. GNCC®-Tuned YZ125 Power Based on the legendary 125cc liquid-cooled, reed-valve-inducted YZ two-stroke engine, the YZ125X utilizes a revised compression ratio, Yamaha Power Valve System (YPVS) timing, and a model-specific CDI unit—all focused on creating broad power delivery that suits off-road terrain and a wide range of rider skill levels. I have replaced a whole lot of nuts and bolts, added the original radiator and re routed all of the radiator hoses. Totalmotorcycle. It is something that is a major engine design parameter and is often different from engine to engine for many good reasons - even different between different builds of the same engine. 2 power multiplied by Atmospheric Pressure. In its third year of production, refinement was the name of the game for Yamaha's 125 in 1988. We are leaders on domestic and imported Compression items. Yamaha YZ125 2001, Replacement Cylinder Head by Athena®. Could it be the mind-boggling power?. 5mm Dome modification for big bore available see FAQ. This site is not affiliated with Yamaha Motor Corporation. Quantity: 9 Pieces. 2015 Yamaha YZ125 (2-Stroke) YZ125 (2-Stroke) Lightweight quick and easy to maintain the YZ125 is a perfect transition for those too big for 85's but too small or inexperienced for bigger more powerful four-strokes. The YZ125 is the perfect choice for riders moving up onto a big wheel, or for riders who just want to experience the scalpel like qualities of motocross at the precision end of the scale. Rocky Mountain Cycle Plaza is a Powersports dealership with locations in Colorado Springs and Pueblo. The Italian made Athena Big Bore Kits include - 58mm Big Bore Cylinder 144cc - Cylinder Head - Athena Top End Gasket set with Head Gasket, Base & Exhaust Gasket -. We carry the latest Polaris, Kawasaki, Suzuki, Kawasaki, Yamaha, Honda, Cfmoto and Husqvarna models, including Motorcycles, ATVs, Side x Sides, Slingshots and more. compression and spark but wont start It has compression and spark but wont start before when it was running it back - Yamaha YZ 125 question Search Fixya Press enter to search. Buy 1998-2001 Yamaha YZ125 Dirt Bike Engine Piston Kit [Bore Size (mm): 53. We sell new and pre-owned ATVs, UTVs, Personal Watercraft and from Yamaha, Polaris, Honda, CFMoto, Can-Am, Suzuki, Sea-Doo, Honda Power Equipment and Kawasaki with excellent financing and pricing options. Two Stroke Tour De Force… So, just how good a machine is this? Well, roll out its ample collection of "Bike of the Year" awards and 125 Supercross titles, for starters. Yamaha's tried-and-true YZ125 is a very capable machine in stock trim and doesn't need much to be an off-road bike. Click here to sell a used 2005 Yamaha YZ 125 or advertise any other MC for sale. Totalmotorcycle. IDEAL BALANCE: A pure motocross machine, the light and nimble YZ125 is the perfect choice for riders stepping up from the 85cc class. The main factors are how heavy you are and how aggressive a rider you are, but after that there are all manner of other factors to take into account from terrain to weather conditions, and in the case of adventure bikes, how much luggage you are packing. The 2001 Honda CR125 is a lightweight dirt bike with a small engine, and it is suitable for beginners or riders seeking agility over power. I might take it to the track and dunes for kicks once in a while. Mint 2005 Aluminum frame Yamaha YZ 125 Lightly used No racing New Factory Connection rebuilt front struts and main shock ($850!) New neck steering bearings and lower linkage bearings New Tire and tubes New air filter FMF Racing exhaust Good compression Good chain and sprocket No Rips. I checked the reeds and they are fine. The Yamaha YZ125 is a motorcycle with a 124. It needed more power, longer suspension and better damping to compete with the class top dog, RM125. the only way the bike starts is if i pull it down the street with the quad. For those who prefer to have the most fun possible on a motocross track, the YZ125 2-stroke is the bike of choice… MORE FUN PER POUND. For those who prefer to have the most fun possible on a motocross track, the YZ125 2-stroke is the bike of choice. I'm 5'10" 165 lbs, I have rode quads most my life and have spent very little time on a dirt bike. Third generation YZ450F 2003–2005. Yamaha YZ125 service manual repair 2004 YZ 125 Instant download of the factory repair manual for the 2004 Yamaha YZ125 two-stroke bike. Actual production numbers are hard to estimate, but the YZ125 and 250 have had the longest production runs of any dedicated dirt bikes, starting in 1974 and continuing to this day. 2001 Yamaha YZ125 2-Stroke. First offered in 1998 at 400cc, it shared many components and design concepts with the YZ400F motocross model. my ride - mikael persson's yamaha yz 125 How Mikael Persson has turned a shop bought Yamaha YZ125 into an EWC winning machine… Concluding the EWC GP of Greece with a double victory on this Yamaha YZ 125, Mikael Persson is now second in Youth Cup, six points behind leader Joser Garcia. Motorcycles on Autotrader has listings for new and used 2020 Yamaha YZ125 Motorcycles for sale near you. GNCC®-Tuned YZ125 Power Based on the legendary 125cc liquid-cooled, reed-valve-inducted YZ two-stroke engine, the YZ125X utilizes a revised compression ratio, Yamaha Power Valve System (YPVS) timing, and a model-specific CDI unit—all focused on creating broad power delivery that suits off-road terrain and a wide range of rider skill levels. I bought a 2000 yz125 2 stroke from a friend. Gives much smoother power delivery at low/mid revs. In 1991, Yamaha was one of the hottest brands in motocross. Getting your suspension set up is essential to making your bike handle well, but it's certainly not a simple one hit process. Rider-Friendly Chassis Ultra light weight means nimble handling with less fatigue. 94 mm big bore cylinder. These things were competitive in the novice class into the early 80s after water cooling and single shocks came on the scene. The Yamaha YZ125 has been relatively unchanged for almost a decade now. RACE-READY FEATURES: The YZ125 is ready to race out of the crate, complete with an aluminum handlebar, titanium foot pegs and gripper seat. 03 Yz125 Low Compression plz help If this is your first visit, be sure to check out the FAQ by clicking the link above. Just to let you know, my 2001 YZ125 has almost always had approximately 180 psi, so I think you are right in the ballpark. Yamaha YZ125 1996 specifications. 80) today when you shop RevZilla for your Wrench Rabbit Engine Rebuild Kit Yamaha YZ125 1998-2000! Free Shipping, Lowest Price Guaranteed & Top of the Line Expert Service. Phathead Racing is proud to offer high quality CNC machined from billet, performance 2-stroke heads at the very best prices. The 2018 Yamaha YZ125’s biggest competitor isn’t Husqvarna, KTM or TM, it is used YZ125s. 8160 Assembly // Yamaha YZ125 2005 - 2019. Lowest price guaranteed! Free shipping $49+! Size charts and product reviews! Find Vertex | Piston Kit Yz125 Std | 23119B along with 100+ other styles in our Parts category. You can pry against the wire of the free-piston spring and the edge of the outer cap. AMX Superstores DRC PHANTOM TAIL LIGHT [DRC PHANTOM TAIL LIGHT] - DRC Motoled Phantom Tail Light Features: - High Intensity LED light for the rear fender. Our store carries new and used ATVs, SidexSides, Personal Watercraft, and Motorcycles from Can-Am, Polaris, Suzuki, Kawasaki, Yamaha and more. Big Bore Head Gasket Set. An update of my bike ,Blew the top end I could probably still start it so it's not blown but it has absolutely no compression :( ,Time to rebuild her again Still have more riding videos but they. 7:1 Fuel Delivery Mikuni® TMX 38 Ignition CDI Transmission Constant-mesh 6-speed; multiplate wet clutch Final Drive Chain Drive. 14 foot-pounds of torque. 040" on every engine. This means Low-Speed Rebound Damping can be set for excellent traction while keeping the compression nice and firm. 00mm Bore, 14. For this week's GP's Classic Steel we are going to take a look back at the 1991 Yamaha YZ125. I don't have a compression gauge, so that's why I don't have a reading, but I'll get it measured as soon as I can. Get the latest Specifications for Yamaha YZ 125 2004 Motorcycle from mbike. Race-Developed Intake Reed-valve spa. IDEAL BALANCE: A pure motocross machine, the light and nimble YZ125 is the perfect choice for riders stepping up from the 85cc class. A proper leakdown test will reveal this problem more easily than a compression check. Mint 2005 Aluminum frame Yamaha YZ 125 Lightly used No racing New Factory Connection rebuilt front struts and main shock ($850!) New neck steering bearings and lower linkage bearings New Tire and tubes New air filter FMF Racing exhaust Good compression Good chain and sprocket No Rips. The use of the word "Yamaha" or any specific model designation is purely for informational purposes to assist users of this site and in no way indicate any endorsement by or approval of this site by Yamaha Motor Corporation. great site you have. Fresh piston and piston ring. View and Download YAMAHA YZ125(P)/LC owner's service manual online. hi everyone, new to the board. Get the best deals on Motorcycle Pistons, Rings & Piston Kits for Yamaha YZ125 when you shop the largest online selection at eBay. The top end definitely needed replaced, but it definitely didn't grenade or anything. 41 in the fork and 4. 00mm, 14:1 Compression, Manufacturer: Athena, CO: Pistons - Amazon. 9:1 Compression 2001 Yamaha YZ125 Offroad Motorcycle. Read ahead to get a grasp of some of the most important terms you need to understand in order to choose the right gas. Here’s our hand-picked list of engine parts for your Yamaha YZ125 with universal parts included (Choose another motorcycle). 88-inch stroke with a compression ratio of 8. my 125 yz has lost compression in the motor and will not kick over it has spark - Yamaha 2003 YZ 125 question. The only way to get more low RPM power is to buy either a 200 or bigger 2-stroke or a 400 or bigger 4-stroke. The guy i got it from said it has a fresh top end (dont they all). Off-road Cylinder Kit. as you can see from the pictures the bike comes with all new plastics, sprockets and chain, chain guides and most of the bolts have been replaced. 2016 Yamaha YZ125 MORE FUN PER POUND For those who prefer to have the most fun possible on a motocross track, the YZ125 2-stroke is the bike of choice. Athena offers the most complete range of gaskets and gasket sets for every make and model of motorcycles, jet-ski, snow-mobiles and outboards in the world. I have seen engines with fairly normal compression numbers, but their leakdown numbers were very high, and the teardown revealed scored walls and scored piston skirts and nearly stuck rings due to carbon buildup in the ring lands. 03 Yz125 Low Compression plz help If this is your first visit, be sure to check out the FAQ by clicking the link above. Rocky Mountain Cycle Plaza is a Powersports dealership with locations in Colorado Springs and Pueblo. Actual production numbers are hard to estimate, but the YZ125 and 250 have had the longest production runs of any dedicated dirt bikes, starting in 1974 and continuing to this day. GNCC®-Tuned YZ125 Power Based on the legendary 125cc liquid-cooled, reed-valve-inducted YZ two-stroke engine, the YZ125X utilizes a revised compression ratio, Yamaha Power Valve System (YPVS) timing, and a model-specific CDI unit—all focused on creating broad power delivery that suits off-road terrain and a wide range of rider skill levels. Suzuki RM125 specifications I have put some Suzuki RM 125 specs on this page. YAMAHA YZ125. A wide squishband tends to give more bottom end but trades for top end,the best head designs are the ktm ones, they are top hat shaped, all the volume is very close to the plug-even though the rm is a copy of the ktm engine its still not as strong, 2 reasons, one the inlet isnt as straight and two-head designs. 2013 Yamaha YZ125, 2013 Yamaha® YZ®125 RETURN TO YOUR ROOTS! The Yamaha YZ®125 rewards its rider with a tasty mix of power and agility which help you deal effortless with a wide range of terrains. I own and race a 2003 YZ125. Wiseco is a USA manufacturer for performance products such as forged pistons, clutch baskets, gasket kits, connecting rods, valves, crankshafts, and camshafts for motorcycles, dirtbikes, ATV, snowmobiles, PWC and automobiles. See prices, photos and find dealers near you. Buy OEM Parts for Yamaha Motorcycle 2005 Clutch Diagram. CYLINDER KIT YZ125 54MM. 2016 Yamaha YZ125. Using the kickstarter can also lead to inconsistent readings. a win-win for all the true moto fans out there. com FREE DELIVERY possible on eligible purchases. Owens Cycle Inc. For Rocks, Roots, and Potholes, adjust to soften compression, slow rebound. YZ125(N)/LC Motorcycle pdf manual download. 1976 Yz125 quality assurance and price concessions. Our store carries new and used ATVs, SidexSides, Personal Watercraft, and Motorcycles from Can-Am, Polaris, Suzuki, Kawasaki, Yamaha and more. Share on Facebook Tweet on Twitter Pin on. I'll look it up when I get home tonight. Italian made pistons for high-performance motorcycle racing applications. Fix Up Your Car or Truck With A New Engine. Have a play with it and feel the difference for yourself. Inventory Unit Detail Yamaha of Harrison Harrison, AR (870) 741-3131. Add to Cart Share. Get the latest Specifications for Yamaha YZ 125 2003 Motorcycle from mbike. Machined valve pockets provide additional valve clearance when used with higher lift camshafts. Rebound only has to control the force of the fork spring, whereas compression damping has to deal with whatever forces the road or track dish out. 2020 Yamaha YZ125 AGILITY, ABILITY, VICTORY. While the YZ125 is revered as an icon of seventies motocross, that fame is more due to the men who rode it, than the bike itself. 2010 Yamaha YZ125 is the latest vehicle for the type of Yamaha Off-Road engine capacity of 125cc, liquid-cooled, 2-stroke, reed-valve Inducted, Single-Cylinder making it much lighter, faster, flexible, agile in all battlefield. The YZ125 is ready to race out of the crate, complete with an aluminum handlebar, titanium foot pegs and gripper seat. Ask for this YZ125 by stock number or make and model. The front was a different story. Luxon is a new company in the triple clamp market out of San Diego. The GYTR High Compression Piston Kit provides a performance boost throughout the RPM range while maintaining a high level of durability. 2008 Yamaha YZ125. The model was launched in 1974 and has been regularly updated, and is one of the only two-stroke bikes of this displacement still in production, with new releases every year. It has a 6 speed manual transmission and a carbureted single-cylinder 1 cylinder engine. 00mm Bore, 14. A wide squishband tends to give more bottom end but trades for top end,the best head designs are the ktm ones, they are top hat shaped, all the volume is very close to the plug-even though the rm is a copy of the ktm engine its still not as strong, 2 reasons, one the inlet isnt as straight and two-head designs. Yamaha Introduces All-New. Freedom Powersports is a dealer of new and used powersports products as well as services and financing in Hudson Oaks, Texas and near Weatherford, Willow Park, Annetta North and Annetta. 2016 Yamaha YZ125 on www. High octane race gas allows you to build an engine with higher compression, more spark advance or leaner fuel mixture, without detonating the fuel. Saskatoon, SK (306) 978-7881. Best Answer: Normal compression should be between 150-180. 2020 Yamaha YZ125 AGILITY, ABILITY, VICTORY Light weight, but heavy on the fun factor. This kit is very popular with Vet racers of all levels and works well no matter how you ride it. Normally for a compression tool to be effective you should have a fresh top end, then record your reading and check every so often.