Question about Parks Optical 13.5hp Briggs And Stratton Intek Lawn Mower Engine

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Briggs and stratton engine surges and slows, repeatedly

I have cleaned the main jet and renewed the in line petrol filter. Engine is a twin petrol engine on an MTD 906 ride on mower.

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There is still either water or debree contaminating the fuel system. Surging is usually debree, empty and flush the tank with gas or Iso alcohol, disassemble carb soak in solvent for 30 minutes blow out the carb passages, reassemble and if the problem persists run engine at top rpm with air cleaner off and block off carb intake with hand, this will stall the motor restart and repeat 4 - 5 times this wiil draw out any debree or other blockage in the carb.

Posted on Jul 25, 2009

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