Gregory
XS400 Member
Hi dudes Im new around these parts. Well new as far as posting goes, Ive used this site for reference for a while now and it has been a life saver. Thanks. So hopefully someone more experience than I can advise me on my problem. Now Im gonna lay it out.
xs400
right cylinder not firing on idle (spark plug tells me its running rich)
new points, condenser, spark plugs, wires, timed to perfection, nice fatty spark!
pod filters, emgo shorty mufflers, 3 sizes up on pilot and main jets (maybe a prollem?)
ok so the carbs have been disassembled, cleaned, reassembled 586 times and the result is always the same... right cylinder does not fire on idle! carbs balanced by eye, all passages in carbs cleared with compressor and air, idle screws turned out 2.5 rotations.
the last time i had the carbs off, cleaned, and back on I got the bike idling perfectly. whilst celebrating with a cigar and some whisky when the bike idled high then stopped runnin. I had forgotten to connect nipple on the right carb boot to the petcock. the spark plug told me the cylinder had been running a wee bit lean at that point.
Soooo I conclude that somehow the right carb is giving excess fuel into the cylinder at idle or the idle air passageway in the carb is blocked (I do not think this is it as I made sure the passageway was cleared. Is there any way the carb would be squirtin more fuel into the cylinders at idle besides using the idle passageway? the choke is fine, not stuck open or anythin... im officially stumped...
xs400
right cylinder not firing on idle (spark plug tells me its running rich)
new points, condenser, spark plugs, wires, timed to perfection, nice fatty spark!
pod filters, emgo shorty mufflers, 3 sizes up on pilot and main jets (maybe a prollem?)
ok so the carbs have been disassembled, cleaned, reassembled 586 times and the result is always the same... right cylinder does not fire on idle! carbs balanced by eye, all passages in carbs cleared with compressor and air, idle screws turned out 2.5 rotations.
the last time i had the carbs off, cleaned, and back on I got the bike idling perfectly. whilst celebrating with a cigar and some whisky when the bike idled high then stopped runnin. I had forgotten to connect nipple on the right carb boot to the petcock. the spark plug told me the cylinder had been running a wee bit lean at that point.
Soooo I conclude that somehow the right carb is giving excess fuel into the cylinder at idle or the idle air passageway in the carb is blocked (I do not think this is it as I made sure the passageway was cleared. Is there any way the carb would be squirtin more fuel into the cylinders at idle besides using the idle passageway? the choke is fine, not stuck open or anythin... im officially stumped...