Supercoyote
XS400 Enthusiast
After a couple years of tuning and tweaking, I've gotten to the point that my XS360 with a 400 engine runs consistently. The only strange thing remaining is that on startup, and really any RPM below 3000 it seems as though the right cylinder cuts out. I've cleaned and synced the carbs, timed the ignition and set the valves but the problem remains. It runs admirably at higher RPM ( except for a Any suggestions or experiences with a cylinder cutting out at low RPM would be appreciated.