Runs Smooth Only On Choke

Hi,

I have a Triumph Bonneville 2001 with carburators.

It runs smooth when the choke(enricher) is engaged but even after a long time, with a warm engine, when the choke is disengaged it runs jumpy. Dies a little bit when gas is applied but then like jump into action.

When even gas is applied it jumps now and again.

The bike has TOR exhaust and hiflo airfilter. Airbox baffle is in place but will soon come out.

Any tips on things to check out?

 

Thanks for replies.

Yes it got CV-carbs.

I'm gonna do the TTP 1.5 stage tuning so then I will change the main jet but maybe clean the other parts and check diaphragm.

I think carburators are a little bit daunting but I guess I will have at it.

I would like a good manual though, anyone have suggestions?

Should I buy som gasket kit as well?

Also I heard the needle could be worn and might need changing.
what do you think?

 

I found this link on carburator dissasembly
https://triumphbonneville.org/re-jetting-the-keihin-cvk-carburetor/

and jets
https://www.dynojet.com/jet-kit-for-2001-2006-triumph-bonneville-1/


Do I need som sort of gasket set?

 

If I am not able to find a way to clean carburator with ultrasonic, is there another way?

Soak in fluid?
Carefully try to unstuck the canals with thin brass wire?