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One cylinder not getting hot??

  • Thread starter Thread starter gs550js
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gs550js

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Hello everyone,
I have a 1981 GS550T which I have put pods on and an aftermarket exhaust. The engine has new rings new gaskets electrical has been gone through. Carbs are synced as well as I can without a cylinder getting hot.
My question is why is my number 3 cylinder not getting hot? I know its hitting because the bike idles fine but when I pull the plug on that cylinder with the bike running it dies immediately. Could it be valves I have adjusted them did I do it wrong? Iam out of ideas help would be greatly appreciated!!
 
Check the Top Ten newbie mistakes list and see if you can check any of those off
 
What year bike is it? does it have VM or CV carbs? if it has VM,s check that your fuel valve is work properly and not leaking fuel down the vacuum line. , Check float levels in carbs
 
The bike has CV carbs
Yes 3rd cylinder as from the left as I sit on the bike
Checked the top ten newbies list
and I have had the carbs taken apart about 20 times they have been dipped 3 times as well.

why would the bike be firing but the cylinders exhaust not warming up could it be an exhaust valve that is stuck closed?
 
It's either carbs or ignition and I'd bet it's carbs, probably a blocked pilot jet.

Does it get hot when you're running with the choke on? But not without it? That would indicate pilot jet.

Will fuel come out of the float bowl on number 3?

Swap the plug wires on cylinders 2 and 3. Does the cold cylinder move?
 
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