The Performance Edge - Yamaha-Racingparts.com
The Performance Edge - Yamaha-Racingparts.com
The Performance Edge - Yamaha-Racingparts.com
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5. High-lift CamshaftsParts ListNo. PART No. PART NAME Q’TY REMARKS1 4C8-12171-80 SHAFT, CAM 1 1 INT2 4C8-12181-80 SHAFT, CAM 2 1 EXT90105-070064C8-12176-0012To adjust the valve timing, use the oval holes of the standard cam sprocket.USE THESE OVAL HOLES FOR TIMING ADJUSTMENT.CAUTION:• When using this camshaft, use the valve spring set 4C8-A2110-80.• Make sure to align the valve timing when the camshaft is assembled. If otherwise, nointended performance can be expected and more over, the engine may be damaged.– 6 –
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