1978 Yamaha YZ250 Drivetrain & Transmission Parts
- Drive Chains
- Sprockets
- Clutches
- Transmissions & Components
- Chain Guide, Protection & Sliders
- Transmission Covers
- Chain & Belt Adjusters
- Clutch Lines
- Transmission Gaskets, Seals & Bushings
- Drivetrain & Transmission Bearings
- Drivetrain & Transmission Mounts
- Chain Lubes & Cleaners
- Transmission Fluids & Oils
- Gear Oils
- Greases
- Drivetrain & Transmission Tools
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Regina Chain®Custom OROY Series Chain Connecting LinkUniversal Custom OROY Series Chain Connecting Link by Regina Chain®. Size: 420. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Master rivet type connecting link for the 420 standard non O-ring chainBuilt with a focus on high performance and superior reliability$1.35 - Regina Chain®Custom Off-Road ORT2 Series O-Ring ChainUniversal Custom Off-Road ORT2 Series O-Ring Chain by Regina Chain®. Size: 525. Link Quantity: 100. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Characterized by new and better performing round section O-ringsLight and strong$107.72
- Regina Chain®Custom Off-Road ZRD Series Z-Ring ChainUniversal Custom Off-Road ZRD Series Z-Ring Chain by Regina Chain®. Size: 520. Link Quantity: 116. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Flexes when assembled, creating a spring effect that guarantees the seal will not diminish over timeThe lubricant trapped between the plates and the lobes of the Z-ring keeps the ring lubricated and increases its life$143.73
- Starting Line®Clutch Sheave Clamp ToolUniversal Clutch Sheave Clamp Tool by Starting Line®. The sheave clamp tool holds the sheave in place when collapsed for changing clutch weights without removing outer cover or clutch from crankshaft. An absolute must for field tuning.Engineered to ensure ultimate strength and maximum safetyMade to give you more confidence while driving$14.20
- Sunstar®Heavy Duty Non-Sealed ChainYamaha YZ250 1978, Heavy Duty Non-Sealed Chain by Sunstar®. Chain Size: 420. Chain Links Quantity: 114. This is the Heavy Duty Non-sealed 'standard' roller chain for all off road motorcycles up to 250cc. Providing good all around...Designed to deliver undisputed performanceWill provide a proper fit and utmost quality$53.70
- Sunstar®Heavy Duty Non-Sealed Clip MasterlinkYamaha YZ250 1978, Heavy Duty Non-Sealed Clip Masterlink by Sunstar®. Chain Size: 520. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Designed to deliver undisputed performanceWill provide a proper fit and utmost quality$4.27
- Sunstar®MXR Works™ Clip MasterlinkYamaha YZ250 1978, MXR Works™ Clip Masterlink by Sunstar®. Chain Size: 520. 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. It will...Designed to deliver undisputed performanceWill provide a proper fit and utmost quality$3.56
- Sunstar®SSR Standard™ Sealed O-Ring ChainYamaha YZ250 1978, SSR Standard™ Sealed O-Ring Chain by Sunstar®. Size: 520. Link Quantity: 120. SSR Standard™ sealed ring (o-ring) chain from Sunstar Sprockets® 'heavy duty' series is one of the most popular chains in Sunstar...Sunstar's o-ring sealed chain uses only the best quality and longest lasting o-ringsLow friction design helps deliver a better power transfer$57.51
- Sunstar®XTG™ 520 Sealed Clip MasterlinkYamaha YZ250 1978, XTG™ 520 Sealed Clip Masterlink by Sunstar®. Chain Size: 520. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Designed to deliver undisputed performanceWill provide a proper fit and utmost quality$6.56
- Sunstar®XTG™ Sealed ChainYamaha YZ250 1978, XTG™ Sealed Chain by Sunstar®. Chain Size: 520. Sunstar's 520XTG Race Grade Off road chain is built exclusively for handling all off road conditions thrown it's way- whether in 2 or 4 wheel racing. The 'TripleGuard'...Built exclusively for handling the demands of the toughest of terrain encountered in any off-road or ATV racingFeatures Sunstar's 'TG' sealed ring design (TripleGuard), which has three sealing lips and lubrication pools on each side of the ring (similar to 'xw' shape ring type)$100.38
- Unibear®Sport Bike Style Drive ChainUniversal Sport Bike Style Drive Chain by Unibear®. Enhanced plate strength brings reliability for heavy duties. High tensile strength, non O-Ring chain. Applied advanced heat treatment process, strong resistance to impact. Hi-tech heat...Twice lubricated with Japan-imported grease, matched with O-ring/X-ring seals, improving wear-resistance by 50%; reducing noise, prolonging service life, 30,000 km guaranteedPunched with high-precision straight-sided press with double guide pillars, making flat plate and hole burnishing band reaching 85%$51.08 - $68.12
- Woody's®Twist™ Installation ToolUniversal Twist™ Installation Tool by Woody's®. An installation tool is included in each package of Twist screws. If you're looking for a quality product that will serve you for years to come, look no further.Required to install/uninstall Twist traction screwsFixed depth control for proper installation$19.80
- BikeMaster®Front Sprocket WasherUniversal Front Sprocket Washer by BikeMaster®. Finish: Natural. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster®...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$7.45
- Fly Racing®Front CS SprocketYamaha YZ250 1978, Front CS Sprocket by Fly Racing®. Material: Steel. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$9.74 - $15.44
- Fly Racing®Rear SprocketYamaha YZ250 1978, Rear Sprocket by Fly Racing®. Material: Aluminum. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$14.70 - $39.92
- JT Sprockets®Chromoly Steel Alloy SprocketYamaha YZ250 with Stock Pitch Chain Conversion 1978, Chromoly Steel Alloy Sprocket by JT Sprockets®. JT Sprockets is the world's leading brand of sprockets for motorcycles and ATVs. Using only the finest raw materials and using cutting...Increased strength and durabilityUnrivaled quality matched with excellent reliability$7.65 - $8.43
- JT Sprockets®High Carbon Steel SprocketYamaha YZ250 with Stock Pitch Chain Conversion 1978, High Carbon Steel Sprocket by JT Sprockets®. JT Sprockets is the world's leading brand of sprockets for motorcycles and ATVs. Using only the finest raw materials and using cutting...Increased strength and durabilityUnrivaled quality matched with excellent reliability$15.78 - $21.53
- Lyndall Brakes®B-52™ SprocketUniversal B-52™ Sprocket by Lyndall Brakes®. Material: Aluminum. 52-Tooth. Color: Black. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...Expertly crafted from the highest grade materialsWill deliver years of reliable service$225.00
- Mogo®Drive SprocketUniversal Drive Sprocket by Mogo®. Many units are sold with low quality sprockets that wear quickly. Mogo has the solution. Replace your sprocket with high quality sprockets before your old sprocket causes damage to your unit.The highest grade materials and the latest technologiesPrecise engineering ensures second to none quality and lasting value$15.29 - $18.89
- Motion Pro®Sprocket Bolt and Nut Fastening KitUniversal Sprocket Bolt and Nut Fastening Kit by Motion Pro®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Kit includes 6 sprocket bolts (8mm), 6 Fuji metal-locking nuts (8mm) and 6 flat washers (8mm)Pre-applied thread locking agent on sprocket bolts and factory-style Fuji lock nuts create a double locking design that keeps the hardware tight and secure$12.99
- PBI Sprockets®Aluminum SprocketYamaha YZ250 1978, Aluminum Sprocket by PBI Sprockets®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Manufactured from 7075 T6- 51 aluminumStronger than steel sprockets in tensile, yield and shear strength$56.95 - $77.85
- PBI Sprockets®Steel Countershaft SprocketYamaha YZ250 1978, Steel Countershaft Sprocket by PBI Sprockets®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....CNC Machined from high grade chromoly steelMeets or exceeds OEM specifications$17.95 - $18.95
- Pingel®Rear Sprocket SpacerUniversal Rear Sprocket Spacer by Pingel®. How Wide Can You Go - This Rear Sprocket Spacer allows the installation of tires up to 142mm wide on 2000-2003 H-D FL models without any other modification to the motorcycle. This easy to...Thoughtfully developed to serve the motorcycle industryBuilt to provide impressive performance and great safety$90.60
- ProX®Alloy Rear SprocketYamaha YZ250 1978, Alloy Rear Sprocket by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Offering the perfect balance between strength, performance and longevityDesigned and manufactured for a perfect fit and ultimate performance$58.17
- ProX®Rear Sprocket Bolt SetYamaha YZ250 1978, Rear Sprocket Bolt Set by ProX®. ProX rear sprocket bolt sets contain 6 pieces of M8x25 bolts and 6 pieces of flanged nylon lock nuts. This top-grade product is expertly made in compliance with stringent industry...Manufactured from the finest materials to deliver lasting durabilityDesigned to combine maximum functionality with eye-catching design$9.39
- ProX®SprocketYamaha YZ250 1978, Sprocket by ProX®. The perfect fit together with the drive chains. The front sprockets are grooved and ultra-light and are the top level quality sprockets. Manufactured from low corrosion SCM435 Ni-Chrome Molybdenum...Carefully developed for the highest level of qualityReady to serve reliably for years to come$36.21 - $45.89
- Sunstar®Rear SprocketYamaha YZ250 1978, Rear Sprocket by Sunstar®. Constructed from S45C Carbon Steel with exclusive heat treatment for added strength & wear resistance, Sunstar's standard steel replacement sprocket is the most reliable replacement grade...Strongest and longest lasting steel sprocket on the marketDemanded by OEM's for over 50 years$29.69 - $36.48
- Barnett Clutches®Clutch Friction PlateYamaha YZ250 1978, Clutch Friction Plate by Barnett Clutches®. Material: Made with Kevlar. Friction plates segmented design increases oil flow and allows the plates to run cooler for a longer life and smoother, more consistent...Direct fit upgrade replacementMade in USA$16.23
- Mogo®Bell Housing Cover CapUniversal Bell Housing Cover Cap by Mogo®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...The highest grade materials and the latest technologiesPrecise engineering ensures second to none quality and lasting value$16.23 - $27.89
- Mogo®ClutchUniversal Clutch by Mogo®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...The highest grade materials and the latest technologiesPrecise engineering ensures second to none quality and lasting value$19.79 - $77.39
