2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 77Get this manual

2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 77

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COMPRESSION PRESSURE MEASUREMENT
1.Check: Valve clearance Out of specification AdjustRefer to "VALVE CLEARANCE ADJUSTMENT"2.Start the engine and let it warm up for several minutes3.Stop the engi