carb stumble
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had a perfectly running 670 w/electric choke ,vacumn secondaries and 50cc acc pump. it was originally on a vic jr, but i put a perf rpm on and it ran great.
had it dialed in with vac gauge, no problems.
took it off and put a 770 avenger on w/electric choke std acc. pump. ran great initally, pulled alot harder it seemed. now its developed a off idle stumble, like a vacumn leak. it pulls hard if you get on it gradually. put a new carb gasket on it, cant find any leaks and have the intake hole for the msd plugged also. help?
had it dialed in with vac gauge, no problems.
took it off and put a 770 avenger on w/electric choke std acc. pump. ran great initally, pulled alot harder it seemed. now its developed a off idle stumble, like a vacumn leak. it pulls hard if you get on it gradually. put a new carb gasket on it, cant find any leaks and have the intake hole for the msd plugged also. help?