SOHC.co.uk Forums > CB500/550

Cam Sprocket to Cam Shaft

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Oddjob:
Yes you do need to lever it on, it won't go on by hand.

JM550:
Thanks everyone, I'm hoping to spend a bit of time on it over the weekend, so I'll give your suggestions a go.

I did try prying it up onto the boss with a screwdriver but i was probably being too cautious with it. I'll give it a bit more force and see if it budges.

Will let you know how I get on.

Thanks

McCabe-Thiele (Ted):
If the tensioner is fully slack you are effectively pulling against the bow shape of the tensioner with only the chain being pulled up to push sideways against the bow tension - naff all leverage so fingers alone can't pull it up hard enough to push the bow sideways.

Seabeowner:
I've done this about half a dozen times including a couple with all new parts. Every time I have trouble remembering the technique and couldn't explain it now! But when I get it right, after puzzling that it is impossible, it actually goes together with a very minimal amount of force and never reverted to anything except bare hands.

Sesman:
I’ve done it three times now with new chains and guides. It’s tough, but I’ve never had to use a lever. The trick is the initial set up….observe the manual carefully for the chain and sprocket relative positions.

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