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Stripped the carbs down to the body and going to get a buddy to run them through his ultrasonic cleaner.
As a side not they the jet sizes did not match the specs for an '81 400.
I had 135 main jets instead of 142.5's
I had 42.5 idle jets which is correct
and I have 35 air jets which should be...
@16VGTIDave - I sprayed carb cleaner around the manifolds and didn't get any fluctuation in RMPs so I think I'm ok there. I mentioned that I had UNI filters on the carbs. I blocked off both of the little spigots coming off the manifolds as a result is this the right thing to do?
@HoughMade -...
Hoping I can get some troubleshooting advice. I've got an '81 XS400 w/ electronic ignition project I picked up in a 1976 XS360 roller. Has the wiring harness, carbs, and engine from the XS400. I got the bike to fire up with full choke on. It will sit and idle this way (although it does cough...