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Matt Martin

Has to be a fuel pick-up issue if it’s happening with three carbs.


Fuel pick up system:

– Pulse fitting (could be affected by reeds, or crank-case sealing)

– fuel pump

– feed/pick-up line

– Pump-to-carb/return line.

Have you restricted the fuel-pump return hose with a zip tie or clamp?


can you post a photo of the fuel line circuit?

Does the problem occur on left and right sweepers?