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YFZ450

Yamaha YFZ450 valve clearance

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I have a heavy duty crank in my yfz. Its sayd its 1.4mm longer. hot rods part No. 4062, does anyone know what the intake and exhaust valve specs are.

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The crank that is a 1.4mm longer is more less a 06 crank which will make a 04-05 motor a true 450cc.

Stock intake valves are 27mm all 3 and the exh. Are 28mm.

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