Yamaha FZ09E - Checking the Camshafts

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Cam s haft wrench
90890-04162
YM-04162
2
CHECKING THE CAMSHAFTS
1. Ch ec k:
• Camshaft lobes
1
Blue discoloration/pitting/s cr atches -> Re-
place the camshaft.
2. Mea sure:
• Camsha
ft lobe dimensions "a" and "b"
Out
of specification -> Replace the camshaft.
Camshaft lobe dimensions
Lobe height (Intake)
36 . 290-36 .390 mm
(1.4287- 1.4327 in)
Limit
36 . 190 mm (1 .4248 in)
Base circle diameter (Intake)
27.950-28.0 50 mm
(1 . 1004-1 .1043 In)
Limit
27.850 mm (1.0965 in)
Lobe he i ght (Exhaust )
35.720-35.820 mm
(1.4063- 1.4102 in)
Limit
35.620 mm (1.4024 in)
Base circle diameter ( Exhaust)
27. 978-28 .0 78 mm
(1.1015-1.1054 in)
Limit
27.878 mm (1 .0976 in)
a
1· ~ I
CAMSHAFTS
3. Measure:
• Camshaft
ru nout
O
u1 of specification -> Replace.
Camshaft runout limi t
0.0 30 mm (0.0012 in)
4. Measure:
• Camshaft-journal-to-camshaft-cap clearance
O
u1 of specification -> Measure t he camshaft
journal diameter.
Camshaft-j
ournal-to-cam-
shaft - cap clearance
0 .0 28--0.062 mm (0.0011--0.0024
in)
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
a. Insta ll the camshaft into the cy li nder head
(w ithout t he camshaft caps).
b. Position strip of Plastigauge® "1" onto the
camshaft journal as shown.
1
c. Insta ll the dowel pins and camshaft caps.
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