Checking The Camshafts - Yamaha 2002 TDM900 Service Manual

CAMSHAFT
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.
Camshaft lobe dimension limit
Intake camshaft
Exhaust camshaft
3. Measure:
S camshaft runout
Out of specification ! Replace.
Camshaft runout limit
0.03 mm
4. Measure:
S camshaft-journal-to-camshaft-cap
ance
Out of specification ! Measure the camshaft
journal diameter.
Camshaft-journal-to-camshaft-cap
clearance
0.020 X 0.054 mm
<Limit>: 0.08 mm
5-11
ENG
a 35.60 mm
b 27.85 mm
a 35.60 mm
b 27.85 mm
clear-