Hi guys. i need some help to get rid of a miss in my KZ 900 eng.
I'm sure it is the carbs and not electrical. i have switched coils and wires and the miss stayed in the same cyl.
I have cleaned the RS34 carbs a few times and the miss has moved to dif, cyls. after cleaning.
During the last cleaning i discovered the pilot screw O rings have degraded and some bits may have gone into the pilot circuit? I replaced them with new.
I will clean them again and focus here.
I have been testing where the miss is by using a temp gauge on the header .i can tell which cyl is running hot or cool, so i can know which cyl is missing/starving for fuel.
what I just noticed just now is that if i hold my hand lightly in front of the carbs bell mouth(air filters removed) i can feel a slight air pulse on #1 , a very strong pulse in #3 almost like its spitting back, and no pulse on 2 and 4?? At the header, the temps are like this, 1= 300* 2=215* 3=255* 4=175* don't pay attention to the low temps its not completely warmed. just that #1 is running best and 2,4 are worst. they should all be a similar temp.
What is this difference in pulsing telling me??
compression and valve clearance is good is good.