idle problems on old 81 gs550

dentoncafe

New Member
So I've rebuilt the carbs, new intake hoes, put pod filters on her, and rejetted to 10. Also cut the tips off my pipes. Now it will idle ok, but then after 30 seconds, it starts to drop until it dies. THe opposite happens after I've been running it hard for a while, the idle hangs up and stays in the 3-4k or higher!. I have recently done some plug chops and found that #2 is usually fouled up real bad while the others are somewhat lean, I'm still trying to dial in my main jets so i know its running a bit on the lean side, but i have gone through and rechecked everything, would a valve adjustment fix it? I checked and only 3 are slightly off. I dont know what could be cause this problem. The carbs are synched as well andthere are no air leaks that i can find
 
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