Commando 961 sport - Year 2014

kev said:

I accidentally started the bike with the oil cap off and it POURED oil everywhere. Daft question, but I assume you get it running and take the cover off to check?

Sorry for the potentially stupid question....

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cliffa said:

TSB = Technical Service Bulletin.

This is the one referring to the oil in the airbox fix..

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TSB 00014

Aug 21, 2023

• cliffa
• Modern Norton

Crank breather to rocker box is the original setup that some folks have actually reverted to.

Unfortunately I think only Norton could tell you the part numbers you require.

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TonyA said:

Did you download the workshop manual on this site (in Resources) . After having had gone through this already , I would advise you to go the route of plugging the throttle body cross passage and set the idle with the stop screw (like you would on a carburetor) . I have done this and many others and this works superbly . Read about how to do this on this site look for the iwilson thread (idle problem solved) .

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TonyA said:

There are more questions now . If you did not get the TSB that addressed this then you need to see Stu or find the parts somewhere. The oil is leaking back through the oil pump to the crankcase sump and when you start up the bike this oil is pushed out through the breather and into the air box. You can probably talk to Stu about the one way valves ( one in the oil pump and the other in the return line from the oil cooler) . This should stop all the wetsumping provided your is oil pump is not leaking internally , where the oil will leak through to the oil pump drive shaft and back into the sump (bypassing the oil pump one way valve) . If this is the case your oil pump should be replaced , Stu may have a repair for this , I am not aware of a repair for this problem. Is your breather coming off the rocker box or the rear of crankcase to the air box ?
I went throgh this same senario and utimately had the oil seepage down to 12mm down on the stick in 2 weeks of sitting . This was much better than a dry oil tank in 8 hours of sitting which is what I had . SO , I replaced the oil pump with a new one and now no (zero) oil leaking into the sump . Once you stop the wetsumping , you can really evaluate your oil in airbox issue. How many miles on your bike ? Have you ever done a compression test ?

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Richard G said:

Hi Tony, I cant locate the workshop manual in the Resources, Is it under something else? Thanks

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961 Norton workshop manual - Euro 4 update

Jan 10, 2023

• cliffa
• Modern Norton

Richard G said:

Hi Tony, I cant locate the workshop manual in the Resources, Is it under something else? Thanks

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TonyA said:

When you click on the link , it goes to your downloads folder so check there .

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