Compression - Yamaha Raptor Forum
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post #1 of 2 (permalink) Old 03-07-2019, 07:56 PM Thread Starter
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What is normal compression for a 2008 raptor 350? Just tested and is 152. Whats the pressure when new and 11 years old? Thanks!
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post #2 of 2 (permalink) Old 03-13-2019, 01:12 PM
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For Warrior 350, my manual says 114psi-128psi. Standard is 121. Nothing changed in the head except the crankshaft bearing size between the warrior and raptor 350.

2016 Yamaha Raptor 700 | GYTR A-Arm Skid Plates | GYTR Chassis Skid Plate | GYTR Swing Arm Skid Plate | GYTR Black Nerf Bars | 700R front shocks | Works Connection clutch lever | ProTaper Evo bars | TrailTech Vapor
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