Camshaft Removal - Yamaha Waverunner VXS VX1800 Service Manual

Camshaft removal

When installing the camshafts, piston #1
must be positioned at TDC. Therefore, do
not turn the crankshaft after removing the
camshafts.
1. Install the special service tools into spark
plug hole #1.
1
3
2
Dial gauge set "1"
90890-01252
Dial indicator gauge "1"
YU-03097
Dial gauge needle "2"
90890-06584
Dial gauge stand set "2"
YB-06585
Gauge stand "3"
90890-06725
2. Position piston #1 at TDC by turning the
drive coupling "1" counterclockwise using
the special service tool "2", referring to the
dial gauge to ensure that the piston has
reached TDC.
TIP:
Make sure that the punch marks "a" on the
camshafts are aligned with the marks "b" on
the camshaft caps.
#1
Coupler wrench "2"
90890-06729
Coupler wrench "2"
YW-06729
3. Make marks "a" on the camshaft sprockets
and camshafts.
4. Remove the oil pipe "1", gaskets "2", timing
chain tensioner "3", and gasket "4".
5-34
Camshaft
2
1
b
a
#2 #3 #4
a