I HAVE A 2007 AC PROWLER, IT HAS ABOUT 3500 MILES, IT WILL NOT GET UP TO SPEED OR CUTS OUT AND BACK FIRES AND SPITS , RUNS OK AT LOWER SPEEDS ABOUT 30 MPH, ANY HELP WOULD BE A GREAT HELP. AT 73 I DON,T KNOW MUCH ABOUT THE NEW ENGINES THANKS

 

it could be anything from the CDI ignition to a rectifier problem, it deffinatly sounds electrical though.

 

thanks i was not sure i kind of thought it was the carburater, it has power nut will not get to the full rpm's thanks bob

 

I LOOKED AT EVERYTHING AND IT RUNS OK AT LOW ARPM BUT WHEN IT GETS TO 30 TO 38 MPH IT COUGHS AND BACKFIRES, AND SLOWS DOWN UNTILL YOU TAKE YOUR FOOYT OFF THE GAS, ANY HELP WOULD GREAT BE APPREACHEATED,