Norton 961 massive oil leak.

BritTwit said:

Since you have a 2013 machine, you may not have the later developed Crankcase breather fix kit fitted to your bike.
It was not unusual for early 961s to fill the air box with oil via the breather.

Post in thread 'Off My Rocker Box'

Aug 19, 2023

Here is the complete TSB.
Maybe someone can move it over to the tech help site.

Crankcase Breather Kit

I’m trying to buy the kit that the factory has developed to eliminate oil in the airbox coming from the valve cover breather. My dealer is having trouble determining the correct Norton part number for this kit. I was under the impression that the kit came with a new valve cover which is...

www.accessnorton.com

• BritTwit

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Raincityrider said:

Any ideas where I could pick up a valve cover gasket? Nothing comes up on the old Google.

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Raincityrider said:

Thank you so much for the help!; this information should definitely help in resolving the wet sumping issue.

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TonyA said:

Thiel will also have the newer longer and upgraded dipstick 6mm diameter instead of 5mm.

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Raincityrider said:

So the issue was better venting! The mechanic who worked on my bike sorted the 961 out and provided some much needed venting. Looks to back to normal! Fingers crossed

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