Tappety Noise

Hi!

My 750 has developed a tappety noise after a run on the Autobahn - i wasn't going that fast, but maybe 90mph for 6 miles or so.
I've checked the valve clearance, and they were on slightly looser than when I set them last, and also adjusted the cam chain, which was a bit loose.

Where else should I be looking?

Cheers

Esben

Re-torque the head . The barrels too, start with that . Re-set valve clearances after , cold .
Re-tighten exhaust nuts , and any other things that would get looser .
Sure wish I was with you to run at that 90 Mph . You only have the 401 Hwy . here in Ontario . Risking suspension of licence etc. We are in KMS. Enjoy .

Fastback-DE said:

Hi!

My 750 has developed a tappety noise after a run on the Autobahn - i wasn't going that fast, but maybe 90mph for 6 miles or so.
I've checked the valve clearance, and they were on slightly looser than when I set them last, and also adjusted the cam chain, which was a bit loose.

Where else should I be looking?

Cheers

Esben

Click to expand...

Not all old Nortons run quiet and at high speed best to have slightly lose tappets than tight, as cam chains with the stock adjuster they should be done every 10k miles as part of maintenance, at running higher speeds sounds do change and also oil plays a big part in what you run with, if the bike is running good then just enjoy the ride and do the maintenance when due.

Check the primary chain tension. They rattle against the case if too loose. Graham