Yamaha Motor 20C Manuel D'entretien page 124

POWR
1
DISASSEMBLY
1
a
a
b
a
3. Crank 1 and crank 4 removal
Remove:
9 Crank 1
9 Crank 4
Plate A .................................................1
90890-02386
Pressure pin B....................................a
90890-02390
Removing steps
(1) By forcing the pressure pin B a with a
hydraulic press, remove the crank pin.
(2) When forcing out the crank pin, use
care so that the crankshaft does not fall
off.
(3) To remove crank 4, follow the same
procedure.
cC
9 Apply pressure to the pressure pin B a slow-
ly.
9 Hold the pressure pin B a in line with the
press screw spindle.
4. Crank 2 and crank 3 removal
1. Remove:
9 Crank 2
9 Crank 3
Support ...............................................1
90890-02394
Pressure pin B....................................a
90890-02390
NOTE:
9 Place the pressure pin B a a on the crank 2 cen-
ter shaft b, and force it out using a press.
9 When forcing out the crank pin, use care so that
the crank does not fall off.
5-5
E