Sym Joyride 125 Service Manual page 157

9. V-Belt Drive System
Check if drive face boss is worn or damaged and
replace it if necessary.
Measure the outer diameter of movable drive
face, and replace it if it exceed service limit.
Service limit: 26.94 mm
Measure the inner diameter of movable drive
face, and replace it if it exceed service limit.
Service limit: 27.06 mm
Reassembly/installation
Install weight rollers.
Install ramp plate.
Caution
The movable drive face surface has to be
free of grease. Clean it with cleaning
solvent.
9-8
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Weight roller
Ramp
plate
Movable drive face
Drive face boss
Movable drive face
surface