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Paging TOG on Zephyrs
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No answer from you phone, are you out celebrating resigning perhaps?
DanL had a dekko at this Zephyr 550 that was mentioned recently. It seems
good except for a noise at tickover. Bottom endish Dan thought, something
between rumbling and knocking. It goes away under load when revved though
and the owner claims get less when warm. I could hear it over his phone
though.
Does this ring any (alarm) bells, or remind you of anything. I think you
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Does it go away if the clutch lever is pulled in?
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Cheers but I have no workshop over here and two project bikes already!
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Always treat an engine as a non-runner unless it can be proven to the
contrary. Or unless the seller gives a guarantee.
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So do the 550 and 750 both have primary chains?
Much of a job to change them? (for a bike shop)
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Yes, yes and yes.
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It's a crankcases apart job, as the primary chain is endless and runs
round the crank between conrods 2 and 3.
Mind you, I wouln't necessarily agree with TOG's diagnosis. Sure, the
primary chains *can* get a bit noisy on the middle-sized air-cooled
Zeds (the big ones always had gear primary drive), but only after
stellar mileages, and even then they never seem to do any harm. They
just rattle a bit.
I'd have thought the cam chain was a more likely candidate, not least
because the camchain adjuster always sticks on those engines.
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Well, yes, but they rattle rather than rumble. Unless we have an
auditorially challenged owner here. Which is possible.
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know these engines.
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