Checking The Camshafts - Yamaha XV1600A1999 Service Manual

CAMSHAFTS
EAS00204

CHECKING THE CAMSHAFTS

1. Check:
S camshaft lobes
Blue discoloration/pitting/scratches ! Re-
place the camshaft.
2. Measure:
S camshaft lobe dimensions a and b
Out of specification ! Replace the cam-
shaft.
Minimum camshaft lobe dimen-
sions
Intake lobe
a 36.494 mm
b 31.850 mm
Exhaust lobe
a 36.454 mm
b 31.850 mm
3. Measure:
S camshaft journal diameter (crankcase side) a
Out of specification ! Replace the cam-
shaft.
Camshaft journal diameter
(crankcase side)
24.937
4. Measure:
S camshaft journal diameter (camshaft cover
side) b
Out of specification ! Replace the cam-
shaft.
Camshaft journal diameter
(camshaft cover side)
27.967
5-32
ENG
24.950 mm
27.980 mm