Re: Backfiring?!?
Depending on the cart, there are a few reasons for this happening. If you give more details to the carts you are asking about, we can try to explain a few reasons. Brand, engine type, backfiring through exhaust or carb? The list is endless lol.
The most common for backfire is the carb opening before the pedal switch activates the solenoid. Excess Fuel enters the engine before it fires and " Bang " next common is aftermarket carbs flooding and same thing, too much fuel too soon.
EZGO twin cylinders also suffer from worn inlet valves and popping back through the carb. In the early stages, valve lash adjustment can solve it. Very worn valves need replacement.
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