3 - 21CHKADJ4.Detach: Timing light Inductive self-powered tachometer or enginetachometer5.Install: Seat Fuel tank side panel (right)Refer to “SEAT, CARRIERS, FENDERSAND FUEL TANK”.MEASURING THE COMPRESSIONPRESSURENOTE:Insufficient compression pressure will result ina loss of performance.1.Check: Valve clearanceOut of specification → Adjust.Refer to “ADJUSTING THE VALVECLEARANCE”.2.Start the engine and let it warm up forseveral minutes.3.Stop the engine.4.Remove: Seat Fuel tank side panel (right)Refer to “SEAT, CARRIERS, FENDERSAND FUEL TANK”.5.Remove: Spark plug6.Attach: Adapter Compression gauge 1Compression gauge:P/N. YU-33223, 90890-03081Adapter:P/N. YU-33223-3, 90890-04082CHECKING THE IGNITION TIMING/MEASURING THE COMPRESSION PRESSURE
