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Hi all, I have a 1989 Polaris Indy 500 I was riding it and all of a sudden it shut off so I pulled it about 20 times and used starting fluid and it started right back up and ran perfect for about 20 minuts, then died so I pulled it about 20 times again with starting fluid and the same thing happened again, I was told it was a fuel pump issue, so I replaced it and the same problem is happening, I cleaned the carbs, replaced the spark plugs, spark plug boots, fuel lines, fuel filter, Yes the filter inside the gas tank is still good. At this point I am at a dead stop on this project. Any help would be greatly appriciated.
 

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Couple things that might help: remove and clean the surge line from the engine to your fuel pump, sometimes it gets clogged; inspect your carb boots (rubber flanges between the carb and engine) for cracks, cracks cause lean mixture (in a pinch I've fixed this by wrapping black electricians tape around the flanges); if it's flooding you'll need to clean or change your needle valves in the carbs. Check your compression, it could also be a problem with your piston/rings or skirts. Just some thoughts.
 

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Let us know what you come up with.
 
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