Cal Schilling
XS650 Addict
Hello everyone I started and account here to look for help. After owning the bike for a while the head cracked on it and needed to be replaced. Well after replacing it I went back to college and the bike sat for sometime. I rebuilt the top end of the motor with new gaskets and seals. after a few years of it sitting around I got back into it (after graduation). Now here is where we are at the engine is rebuilt the timing is spot on. The cam shaft tensioner has been set to the tolerances. I have redone the valve spacing. I have cleaned the carburetor and gone over it with cleaner and a wire to get into all the little ports. Jets are cleaned 100% and I keep taking them apart to check because all the posts I see seem to lean towards that. I have replaced the throttle shaft seals because they were cracked. I have the manual and am no mechanic by any means but am learning a lot. Anyways the bike starts up after a few seconds of hitting the starter button. It then revs up to idle and about 5-10 seconds later it dies. If I give it more throttle it throttles up and then dies at the same time. I can not keep it running and I am running out of ideas on how to fix it. I would love some input from others who have worked on these bikes before. A little note on my carburetor is that it is the Mikuni BS34111 and has no fuel mixture screw. Any help or ideas would be great. I feel like I am so close but hit this road block.