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English - Yamaha-Racingparts

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7. High-lift Camshafts<br />

Parts List<br />

This camshaft has a cam profile etc. changed from the STD one.<br />

To adjust the valve timing, use the oval holes of the standard cam sprocket.<br />

TIP<br />

For valve timing adjustment, refer to the KIT TOOL MANUAL.<br />

NOTICE<br />

No. PART No. PART NAME Q’TY REMARKS<br />

1 14B-12170-70 SHAFT, CAM 1 1 INT<br />

2 14B-12180-70 SHAFT, CAM 2 1 EXT<br />

90105-07006<br />

• When using this camshaft, use the valve spring set 14B-A2110-71.<br />

• When fitting the camshaft, use the slotted holes of the cam sprockets and always set<br />

the timing to match. If otherwise, no intended performance can be expected and<br />

more over, the engine may be damaged.<br />

– 7 –<br />

14B-12176-00<br />

USE THESE OVAL HOLES FOR TIMING ADJUSTMENT.<br />

Sprocket assembly position at top dead center point of #1 cylinder compression<br />

#1CAM #1CAM<br />

Cylinder head<br />

alignment surface<br />

2<br />

1

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