sleepygreen
XS650 New Member
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I bought a 78 xs650 that has new points, coils, wires, plugs, valves and chain check out good, and finally new mikuni vm34 carbs. I tried using my friends stock carbs and the bike runs. With the vm's i can only get it to start for a second with starting fluid, but dies once the starting fluid has been used up (about a second or two). The carbs have the following specs:
Main jets: 180 (have also tried 195)
Pilot jets: 30 (have also tried 20)
Needle: 6f9 set on center clip groove
Needle jet: p-5
Floats set to 25mm i think (whatever the manual said when i was doing it)
Air Jets removed
I have tried several different settings on both air and idle screws and just cant get it running, new gas and i know the bowls are filling properly. When i have had it running i have to give it a little throttle and it sputters and backfires quite a bit.
I would appreciate any suggestions.
Main jets: 180 (have also tried 195)
Pilot jets: 30 (have also tried 20)
Needle: 6f9 set on center clip groove
Needle jet: p-5
Floats set to 25mm i think (whatever the manual said when i was doing it)
Air Jets removed
I have tried several different settings on both air and idle screws and just cant get it running, new gas and i know the bowls are filling properly. When i have had it running i have to give it a little throttle and it sputters and backfires quite a bit.
I would appreciate any suggestions.