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Join Date: Jun 2006
Location: Corpus Christi, Texas
I agree with the lean running diagnosis. However, to me, it sounds more like an air leak somewhere in the intake system. Either a carb boot has come loose or gotten misaligned or the diaphram in the carb has holes in it allowing more air in. I wouldn't run it like this very long as you can also burn the valves if you haven't already since the exhaust pipe was glowing red.
To test this, you can squirt some WD 40 around the boots while the engine is running. If the idle speeds up, you have a leak around the boot(s). If not, the leak is elsewhere.
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08