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once again i did not buy those parts to diagnose this problem they needed to be replaced for other reasons. I.e. before parts, bike no run. After parts bike run but not right.
I appreciate the concern for my wallet but those parts were all bought with the intention of replacing old or worn or incorrect a/m parts just to get this bike back to running. They just happen to help narrow down the possibilities with the issues I'm having. As for the bike it's stock aside...
It must be a carb issue then, one of the first things i did was swap plugs both before and after the new set. I know the floats are good but i think I'm gonna recheck everything on the carbs. See if maybe i missed something
I havea 1980 xs650 special and no matter what i throw at it i can't seem to solve this. After warm up the left cylinder behinds backfiring and surging getting worse and worse until it's essentially running on 1 cylinder. Leave it overnight and it's back to normal until it warms up and starts...