Help me get my Nighthawk running right.

loanshark · 07-09-2007, 11:21 PM

I've changed the plugs, pulled the bowls off the carbs, soaked the jets, sprayed carb cleaner in every oriface accesable from the bowl, and changed the oil.

It idles well, accelerates well, and runs @highway speed well. The problem is just above idle it's rough, like its missing. please help.

loanshark · 07-11-2007, 1:05 PM

Please help me.... I've fallen and I can't reach my beer.

loanshark · 07-16-2007, 5:48 PM

Nobody has any ideas for me?

jj_long · 04-08-2008, 6:13 PM

if you pulled the bowls did you check the floats were not cracked and filling with fuel and did you check the float height. the problem is gonna be a fuel prob so get a manual and go over the carbs following specs and use a manometer to sync them. then check your ignition and coils. that would have been my first look because its easier but because you fiddled with the carbs id be looking there as well. i have a 83 cb650sc abd they are simple bikes but some parts are getting harder to find.