TOHATSU MFS 25D Service Manual page 179

4 stroke
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9) Removal of Timing Belt and Pulley
Turn the drive pulley 1 in the clockwise direction, and
1.
align the " " mark a of the drive pulley with the " " mark
b of the cylinder block. Check that the "
driven pulley 2 and the " " mark d of the cylinder head
are aligned.
The No.1 cylinder should be at the top dead
center of the compression stroke.
Crankshaft Holder:
P/N. 3BJ-72815-0
Install the key 3 of the flywheel and the crankshaft holder
2.
4 in the crankshaft.
When installing the crankshaft holder, align the
key groove of the crankshaft holder with the key.
Loosen the nut 5 of the drive pulley while immobilizing the
3.
crankshaft holder.
• U s e t w o 36  m m w r e n c h e s f o r t h i s s t e p .
(Spanner wrench and socket wrench)
• When loosening the nut of the drive pulley, be
sure that the drive pulley does not turn.
• Keep the timing belt engaged as a means of
precaution.
Loosen the bolt 6 of the driven pulley while immobilizing
4.
the crankshaft holder, and remove the bolt and washer of
the driven pulley.
When loosening the driven pulley bolt, be careful
not to turn the driven pulley.
4st 25/30 2022
c of the
5
5-39

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