#2 cylinder not firing

[brent fast]

I have an 81 GS 750E and the #2 cylinder doesn't seem to be firing at idle. I have changed plugs, swapped coils, and taken the carbs out (they looked very clean) The exhaust does get some what hot over 3000 rpm but I can still grab it with my bare hands. I have checked compression and it seems to be fine. Also burning a lot of fuel and the exhaust smells really rich. Any ideas I would be willing to try anything.

Thanks Brent

[SqDancerLynn1]

First thing to check is the petcock since it is operated by the #2 carb. Check spark, check carbs

[ahmet]

I have excatly the same problem on my 80 GS450. I tooks the carbs out three times and cleaned every little piece inside. Still I cannot get the left cylinder to fire. Fuel comes to that carb and there is a big fat spark on the spark plug. What gives?

[Tarbash 27]

while its running, spray some starting fluid into that carb and see if it fires. if it does, than its a carb related problem, make sure the jest are cleaned out. and sometimes if its a spark plug, the plug might fire when you take it out, but it wont fire under compression. so make sure you have good plugs.

[J_C]

Check for vacuum leaks... that could be the cause of it. I suspect that's the cause of my #2 cyl problem. I'm cleaning carbs to be safe.