Problem is that the bike runs ok, idle, low range. revs nicely, smells slightly rich. as soon as speed goes over about 60-70km/h, it seems that one or two cylinders stops firing, it stalls, but after few seconds it starts and revs fine, and same thing occurs right away when picking up speed. i can accelerate the first gear all the way, but when shifting to second, it starts the struggle again.. Today it got even worse, ran like it would only run with two cylinders and didnt start afterwards. i have checked the fuel lines, fuel pump, i have cone filters on, have tried blocking the "raw" air coming to the filters, with no results. i have cleaned the carbs and rebuilt them and also they are in sync, float height is about 20mm, main jet size 110, needle jet is set at 3rd. (counting from the top. new spark plugs also. gas tank breathes normally, there is no vacuum.... Please, any ideas?
If carbs are clean and not flooding etc then try finding out which cyls are off then swop plug caps over from good cyls and see if problem moves , if yes then fit a set of 4 new plug caps ! if no then do carbs again !!
SOURCE: Hi , my suzuki Bandit GSF 600 2002 plate, off road
Ride the bike 20 or so miles on open road. Stop and remove plug to inspect. 'Are they black or white ?
Black =rich white=lean
219 views
Usually answered in minutes!
×