SOHC.co.uk Forums > CB350/400

Clunking noise from front sprocket area.

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Bradders:
Evening all. Have just pushed my bike into the garage after riding home from work and have noticed a clunking noise that appears to come from the front sprocket area. When I push it backwards it doesn’t make the noise at all.  Any ideas what it might be? ( hope it’s not bad news🙁)

Clem2112:
Chain hitting the swingarm at the front?
Check the free play in the lower run.

Bradders:
Have checked the free play Clem2112 and seems about right at 20 mm at the tightest point.

taysidedragon:
Check the front sprocket plate and bolts. The bolts may be loose. 😯

Clem2112:
Rear sprocket also floats slightly on the rubber dampers, is there excessive play here?
Also look at the front/rear alignment of the sprockets.
Were all three items renewed as a set, a worn sprocket might make more noise on a new chain.

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