Bayou 400 B4 Idle start problems
Have a 96 bayou 400 that'm a headache. The problem is with the idle at atart up. Most of the time at start it will idle rough and stall. If chocked it will seem to run abit better. If I them simply let the bike sit for 10 minuetes or so, it sometimes starts and runs like a new one. Once in a while it will start cold just like a new one. the idle problem is intermitant.
Things that I have done to this bike.
New plug, New cylinder, New piston, New rings, two new valves, valve job, new decompessor, new one way clutch, new torque limiter, chased wiring and repaired to remove potential shorts, disassembled and cleaned carb (initial setting on pilot jet set at 2 1/4 turns), Did find the pilot jet partially clogged and cleaned it with a wire.
One note: the vacuum diaphram appeared somewhat wrinkled, but not torn or holed.
I do ride this on my farm but it drives me nuts to keep starting and shutting down till it starts and runs clean.
Any help is appreciated