Yamaha F40BMHD Service Manual
Also see for F40BED: Rigging guideOwner's manualService manualService manual
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Contents
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POWR5-33CYLINDER HEAD ECHECKING THE CAM SHAFT1. Measure:• Camshaft lobe dimensions andOut of specification → Replace.2. Measure:• Camshaft journal diameter• Camshaft journal inside diameterOut of specification → Replace.CHECKING THE DECOMPRESSIONACTUATURS (MH)Check:• Decompression actuatorExcessive wear → Replace the cam-shaft.Cam lobe measurementIN 30.89 - 30.99 mm(1.2161 - 1.2200 in)EX 30.89 - 30.98 mm(1.2161 - 1.2173 in)IN 25.95 - 26.05 mm(1.0217 - 1.0256 in)EX 25.95 - 26.05 mm(1.0217 - 1.0256 in)ababaaabbbbbb Camshaft journal diameter#136.925 - 36.945 mm(1.4537 - 1.4545 in)#2, 336.935 - 36.955 mm(1.4541 - 1.4549 in)Camshaft journal inside diameter37.000 - 37.025 mm(1.4567 - 1.4577 in)ab |
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