The SOHC/4 World Tour is in under way.
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is the filter over oiled?try a 38 slow jet.
The little O-rings around the main jets, do they seal well? Any cracks in the towers?BTW, no 500 or 550 needs a main jet over 100.
No cracks around the towers, some pitting. I think the o-rings seal well none the less. But im having rich problems at idle so the main jet should have minimal effect right ?
make sure your float height is spot on make yourself a gauge and with the float arm just resting on the float valve check the the floats are equal to themselves not twisted and at the correct height 22mm or 0.89in from the carb body for too much fuel in the bowls will make your bike run rich at idle.
QuoteNo cracks around the towers, some pitting. I think the o-rings seal well none the less. But im having rich problems at idle so the main jet should have minimal effect right ?It's not about the main jets themselves. If they don't seal well or if there's some other leak (crack maybe) the high vacuum at idle will make the engine suck very hard whatever fuel it can get through any little hole.