SOHC.co.uk Forums > CB750

Tapping nosie

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K2-K6:
The speed of the tapping sounds top end y.

It has got oil to both sides of the head? Hasn't it?

Take the tappet covers off to have a good look and don't run it if at all suspect.

ka-ja:
Out of balance carbs. can cause rattles.

yozzer74:
K2 that was first thing we checked .yeah plenty of oil .will take a look at carbs .

MarkCR750:
Hi Yozzer, as above I had that noise on mine and it was a leaking exhaust copper crush gasket, sounded very metallic, great relief when I check tightened the headers and it went away!

yozzer74:
Cheers mark will give it a check

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