Checking the clutch plates (Aprilia Shiver 750)
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- Aprilia
- Shiver
- SL 750
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- Checking the clutch plates
Lay the friction discs and steel discs on a level surface and check them for cracks and potential distortions.
Maximum distortion allowed: 0.20 mm (0.0079 in)
Measure the driving plate thickness at four positions, replace them all if not complying with specifications.
Measure the thickness of the clutch discs at four positions, replace them if not complying with specifications.
Check if the valve slides freely, without jamming.
Blow compressed air into the valve and check that the lubricating oil passage holes open.
Maximum distortion allowed: 0.20 mm (0.0079 in)

Measure the driving plate thickness at four positions, replace them all if not complying with specifications.
Caution! The steel discs must show no scores or tempering colour.
Measure the thickness of the clutch discs at four positions, replace them if not complying with specifications.
- Thickness of nine drive discs: 2.5 mm (0.10 in).
- Driven disc thickness: 2.95-3.05 mm (0.116-0.120 in)

Mushroom valve check
Check if the valve slides freely, without jamming.
Blow compressed air into the valve and check that the lubricating oil passage holes open.

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This article has been reviewed: Serafim Sazonov
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