Yamaha MX360 - Page 99

PISTON, CAMSHAFT, CRANKCASE, AND CRANKSHAFT
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ENGINE
2.
Check:
• Camshaft lobe dimensions “a” and “b”
Out of specification/rough/eccentric wear 
Replace.
3.
Check:
• Surface of camshaft gear teeth
• Decompressor
Crack/damage/wear  Re
place.
4.
Check:
• Camshaft journal diameter “a”
Out of specification  Replace.
a
b
Camshaft lobe dimensions:
Lobe height “a” (Intake):
32.10–32.20 mm (1.264–1.268 in)
Limit:
31.90 mm (1.256 in)
Lobe height “a” (Exhaust):
32.50–32.60 mm (1.280–1.284 in)
Limit:
32.30 mm (1.272 in)
Base circle diameter “b” (Intake):
25.98–26.08 mm (1.023–1.027 in)
Limit:
25.98 mm (1.023 in)
Base circle diameter “b” (Exhaust):
26.03–26.13 mm (1.025–1.029 in)
Limit:
25.83 mm (1.017 in)
a
a
Camshaft journal diameter:
15.965–15.990 mm (0.6285–0.6295 in)
Limit:
15.950 mm (0.628 in)