Mickey85
XS400 Enthusiast
I got the bike rebuilt, and added some shorty mufflers, primarily for a price point. I went up a jet size on the mains and primaries to compensate. I put it all back together, and now when it's cold, it'll idle on the choke OK, and occasionally run a high RPM until it gets a bit of heat in it, then calms down to 700ish RPM. When relatively warmed up, it doesn't stay idling on any of the 3 choke settings.
The bike starts immediately, even after sitting all night, and doesn't appear to have vacuum leaks having shot it with starting fluid. I rebuilt both carbs and the petcock, and fuel appears to be flowing relatively well when on the "run" setting.
Any ideas? Should I go back to the original jets to see if that helps situations? The bike is completely stock except for the new jets and mufflers.
The bike starts immediately, even after sitting all night, and doesn't appear to have vacuum leaks having shot it with starting fluid. I rebuilt both carbs and the petcock, and fuel appears to be flowing relatively well when on the "run" setting.
Any ideas? Should I go back to the original jets to see if that helps situations? The bike is completely stock except for the new jets and mufflers.