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Prowler 1000 backfiring

7K views 7 replies 6 participants last post by  Aaron Knudsen 
#1 ·
Accelerating begins sputtering until it backfires. Installed new plugs and fuel filter. Fuel pump sounds different.
 
#8 ·
Anyone ever figure this out? I’m having a similar issue with a 2010 1000XTZ. I just hate throwing parts at it. How did you test the fuel
pressure the pump is putting out?

I’m working to replace the filter on the pump pick up but they’re hard to get a hand on. I guess I’ll try to figure a pressure test on the pump. Short of that, is the third step replacing o-rings on the throttle body and injectors???
 
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