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Keyster Carb Kit

3973 Views 8 Replies 5 Participants Last post by  qwerty
I just installed the Keyster kit and I'm having some real problems. The bike ran fine before the kit but the float needle was shot. I bought the kit and have since also purchased a #40 pilot since the kit comes w/ a #38. It runs on choke but not well and when the choke is removed there is a backfire through the carb. It also takes a while to return to idle when rev'd. I thought it may be an air leak so I replaced the intake manifold, didn't help. I have had it off three times now inspecting everything, it all seems right.I am wondering now if it's running rich and needs the needle lowered.

Has anyone else used these kits?

Is the jet really the size of a TK #116?

What needle clip setting have others used?

Anyone have suggestions on things to check/recheck?

1989 (all stock)
1 - 2 of 9 Posts
Thanks for the responses guys. Right now the only thing keyster that could effect running is the main jet, the PMS, and the main needle. I replced the pilot with a TK; the needle was quite a bit different, it is tapered dramatically and is a noticeable amount shorter. I think I'll pull that lovely adjustable needle out and try OEM. I'll post the results.
1 - 2 of 9 Posts
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