Seller notes

Cam Chain Tensioner For Honda TRX 300 Fourtrax ATV TRX300EX TRX250X TRX350 85-UPFeature:"Manual cam chain tensioners are designed to replace the automatic and hydraulic tensioners on high-performance engines. The automatic adjusters can back out when the throttle is closed suddenly at high rpm. This allows the cams to go momentarily out of time, and can result in bent valves and/or serious engine damage. Hydraulic tensioners have a tendency to put too much tension on the chain guide under high r...

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