motogtp
CB750 Addict
Making progress on my '78 SS. Before - plugs completely fouled in less than 5 miles. After rebuilding the carbs (new floats, float needles, 105 jets, O-rings & gaskets, but not the needles) it runs nice now, idles well, runs hard. Except that now the plugs foul up completely in about 40 miles. I'll be riding along and it will suddenly start running rough, loose power, and then dead in a 1/2 mile. Pop in a new set of plugs and off she goes like nothing happened. I found out from the PO that he had CycleX rebuild the carbs a little over a year ago. Said it still didn't seem to run right so he had another shop that specialized in 4 cylinder Japanese bikes tweak it. The exhaust pipes at the head are perfectly chromed like the engine has never run lean in its entire life (6100 miles). So here is my question...if two "pro" shops can't seem to make these carbs work are they the seed of hell spawn? Should I cut my losses and get a different set and rebuild them?