Description
Yamaha Blaster Aluminum Rear Sprocket
The JT Yamaha Blaster aluminum rear sprocket is a 40-tooth replacement for 1988–2006 Yamaha Blaster YFS200 models. Part number JTA853.40BLK belongs to JT’s Racelite range and features 7075-T6 aluminum alloy construction with a black finish.
Specifications and Fitment
- Manufacturer: JT Sprockets
- Range: Racelite
- Part number: JTA853.40BLK
- Material: 7075-T6 aluminum alloy
- Tooth count: 40
- Chain size: 520
- Finish: Black
- Application: Yamaha Blaster YFS200, 1988–2006
- Quantity: One rear sprocket
Stock Tooth Count and Gearing
The 40-tooth rear sprocket matches the standard rear tooth count listed in JT’s Blaster application catalog. Your final gearing also depends on the front sprocket tooth count. Check both sprockets when selecting replacement drivetrain parts, particularly if your Blaster has previously been modified.
Installation and Drivetrain Inspection
Inspect the chain, front sprocket, rear sprocket carrier, and mounting hardware before installation. Worn drivetrain components should be addressed together to help prevent premature wear on replacement parts.
Confirm mounting compatibility if your ATV uses an aftermarket carrier. Follow the Yamaha service manual for mounting procedures, fastener torque, chain alignment, and chain adjustment.
Shop more Yamaha Blaster parts at The Blaster Store.
Questions about fitment? Contact KOR or call (860) 230-5003.
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