Drive-belt
- Check that the driving belt is not damaged.
- Check the width of the belt.
Characteristic
250 4T Transmission belt/minimum width
19.5 mm
250 4T Transmission belt/standard width
21.3 ± 0.2 mm
During the wear checks in the scheduled servicing
programme, you are advised to check the rim bot-
tom of the toothing does not show signs of inci-
sions or cracking (see figure): The rim bottom of
the tooth must not have incisions or cracking; if it
does, change the belt.
Removing the driving pulley
- Turn the crankshaft until the ropes of the pulley
are on a horizontal axis
- Insert the adaptor sleeve of the appropriate tool
in the hole shown in the photograph
MP3 250 i.e. Engine
ENG - 13
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