KitsuneSassha

I know its been forever since I've logged in but I've still been scouring the site for information about my issue. I rebuilt my carb about a month back due to leaking oil and fuel between the air horn as well as the throttle plate.
Since then, I've developed either a 'lean' missing issue at medium rpms just cruising.
It idles fine and takes off when I floor it. The rats nest was removed before I got it, and I followed your guy's wonderful guides on stripping the Nikki down to minimum and plugged every hole I could find.


There is a small hole in the exhaust, but it's had this since October without any major issues. (I know its still a big one, working on a exhaust right now) Plugs and wires, cap and rotor have been replaced with new, and the coils are still good.
Also during the rebuild I somehow disabled my choke? When I pull the cable it stays out but it doesn't put the poor thing in high idle anymore.


While I'm certain this is my own fault for rebuilding the carb wrong somehow, I'm kind of lost, hope you guys can help me out?

t_g_farrell

iTrader: (1)

How do you know its a lean issue? At cruise its basically using the primary circuit and part of the idle
circuit. Since it idles fine, I would suspect the primary circuit has some issue like a plugged passage.
Did you soak the carb good in a cleaner when you rebuilt it? Run compressed air through it all?

Might want to take it off and disassemble and verify that all the right jets are in the right places. Its
easy to get them in the wrong spots if you pulled it all apart.

KitsuneSassha

I soaked the hell out of it and blew air through and even let it rest overnight. I had all the Jets marked. X3 I'll check the carb again though, I've gotten good at ripping that nikki apart now.
Once I do that I'll get back to this. Is there anything else it possibly could be?
Oh and thanks for the insight!

KitsuneSassha

Update, you were completely correct. Apparently I mixed up the primary and secondary jets on the 2nd rotor bowl. Whoops. Thanks for your help!

t_g_farrell

iTrader: (1)

Easy to do. When I did my fat nikki the original owner did this and I didn't recheck it, so when I was
rebuilding it the first time they were still wrong! Learned my lesson on that now.

wahootee

iTrader: (50)

FYI - while I know you solved your issue and it being the carb, another thing that can cause a high speed miss that is a PITA to figure out is a coil going bad. Gives similar symptoms.