SOURCE: 18hp twin cylinder Briggs & Stratton backfire
Check to see if the carb is clean, if so the anti diesel value could not be working. Apply 12 volts to value and see if it move's. If that works then you may what to check the fuel pump and see if it pumps. After you tried all that then you may have change the main jet size because these engines come with a small jet for the EPA.
SOURCE: I have an 18hp v twin vanguard and it is
Piston rings being wore.Thanks for asking and I hope this helps out.Please leave me 4 thumbs up.
SOURCE: My John Deere 318 briggs & straton v-twin 18HP is flooding out
need carb kit with nedle and seat
SOURCE: briggs and stratton engine runs rough, Twin II 18HP
check carburetor and ad carb leaner and gas treatment has to be on full.
SOURCE: Engine eating cogs
sounds like the valves are out of adjustment, this will make the engine hard to turn over.
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