Jim D
Senior Member
What td25c said!
If fuel runs or drops into the carb venturi (into the intake) when the fuel is pressurized but the engine isn't running, float level or needle valve leakage or internal leakage is the problem.
If it seems like there is over-enrichment when the engine is idling or at throttle tip in, the ignition system could be the problem.
Three psi fuel pressure to the carb, while it is on the bench, will tell you if there is a float level or needle valve or an internal leak problem. Plastic and rubber needle valve points die, and leak.
If fuel runs or drops into the carb venturi (into the intake) when the fuel is pressurized but the engine isn't running, float level or needle valve leakage or internal leakage is the problem.
If it seems like there is over-enrichment when the engine is idling or at throttle tip in, the ignition system could be the problem.
Three psi fuel pressure to the carb, while it is on the bench, will tell you if there is a float level or needle valve or an internal leak problem. Plastic and rubber needle valve points die, and leak.