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Idle problem

Keith, i dont know if you're CV carbs are the same, but my choke assembly is a bar, yes...but its tapped for the choke screws...meaning they all sit in the same place...and shouldn't stick or go out of alignment unless they are not connected to the bar.

my bike fires up only only 3 cylinders with full choke...it has done this ever since i got it...carbs have been cleaned twice, so i don't know why this happens.

~Adam
 
Feeling rather stupid

Feeling rather stupid

Keith, C.I.,

I worked on the beloved 'Cane yesterday. After my last ride, not only did I still have the idle problem, the electric cooling fan had ceased to function and the brake light on the GIVI top trunk had failed also. I found a loose connector for the fan and a broken wire for the light. Then I went into the idle thing. I checked the coils and wires for resistance per the manual. All were on the high side of the range but okay. The book says the readings are for 68 degrees and it was around 80 so that may have something to do with it. I pulled the wires off the coils and cut a small piece off each wire so there would be clean wire to contact. I cleaned all connections with a contact cleaner/protector I got at an electronics supply place. Everything looked okay so I put it back together and started it up. The idle was rather low and rough, although not as bad as it gets when hot. I started re-thinking the 'AIR' (big hint right there)screw adjustment and my handling of the 'RICH' condition. It occured to me that I had been adjusting the WRONG WAY! I should have been turning them OUT to get more air and lean it out. I adjusted the AIR screws OUT for highest idle and ended up with them out 4 turns. I went for a pretty long ride and rode hard and fast, then slow in stop and go traffic. I made sure it got good and hot. The idle is still just a bit lower when hot than when warm but much cleaner and stable. I hate to think this whole thing was due to my own stupidity but it sure wouldn't be the first time!

Hopefully this will close this problem. Once again, thanks to everyone who helped, especially Keith. It is all greatly appreciated.

Joe
 
I just hope it's fixed! There was some confusion earlier about what kind of screws you have. Right now, your description makes me think you have 1 screw, a mixture screw. When you turn a mixture screw out, you get an equal increase in both air and fuel. On my older carbs, I have a seperate air screw and pilot (fuel) screw. Turning either of these out also increases their volume. Again, hope it's fixed!
 
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