O
Ola
Guest
Oh! Sorry about that. Internet Speedy Advice Syndrome, posting before reading properly. Is the rocker bent or sticking in any way?
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A
Adler
Guest
I thought about a bent rocker, so i switched it for another rocker from a spare carb set, same deal... (I thought of using the other set of carbs, but it wouldn't start with them, so I figured Id be better off troubleshooting these)
S
SqDancerLynn1
Guest
You need to go back and start over. Take the carbs off and with the idle screw backed out, Adjust the #3 carb slide so that it is closed- no light coming thru.. Then adjust the idle screw up until the #3 carb is open maybe 1/16" Then using a 1/16 drill bit adjust the rest to match will get you into the ballpark. Bottom fuel screw about 5/8th turn out, side air screw about 2-2.5 turns out. Put it back together..
Don't forget to turn the idle back down !!!
Don't forget to turn the idle back down !!!
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A
Adler
Guest
S
SqDancerLynn1
Guest
Don't forget to turn the idle back down !!!
Steve
GS Whisperer
Bench syncing the carbs is always a good idea, but in this case, #3 is not the "master" carb.
On the VM carbs, it really doesn't matter, there is no "master" carb, as they all come off the same throttle rod that lifts the slides. Also, 1/16" is a BIG measurement. It is much easier to guage a very small opening rather than judge the variances around a larger distance. I just go for a very small sliver of light under the slide and adjust them so they are all about the same.
The stock setting for the fuel screw is about 5/8 turn, most find that setting it to 3/4 turn works a bit better. Not so sure about the air screw being so far out, either. A good starting point is double what the fuel screw is. When the engine is warmed up, adjust the air screw for highest engine idle speed.
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M
MrSelfdestruct
Guest
I'd bet that your carbs are really far out of balance...like to the point that one or two of the slides are adjusted so far down that they are completely closed and holding the other two open, not allowing the throttle-adjust screw to engage - hence one side of the exhaust getting hot and not the other (one or two of your throttles are completely closed and thus not firing), and the crazy high idle (two throttles being help open). I would just pull the carbs off and do a bench sync for starters. it looks like you've already got the top covers off anyway.
