Hello all! So I got my hands on what I believe to be a 73 xs650. It has a 2 into 1 with a baffle and uni pods. The carb is a mikuni VM?? I'm having trouble figuring that out. It has a 25 and 180 with the needle on the second clip from top going down. The airscrew is all the way seated. She runs and idles no problem. Even starts on first to second kick cold. But she has a bad stumble at wide open. Then shoots like a rocket. I can slowly ease on the throttle and get her running threw all the jets with no problem. It's when I pull hard it stumble at the top end.
Sorry for the ramble thanks for the read! Open to any ideas and suggestions.
Sorry for the ramble thanks for the read! Open to any ideas and suggestions.