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post #1 of 4 (permalink) Old 01-10-2012, 01:36 PM Thread Starter
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Dies with throttle?

I have a 97 Sportsman 500. I have changed the spark plug and cleaned all the jets in the carb and its still killing itself when you hit the throttle? I have also cleaned out fuel tank and ran it with Seafoam at idle. It starts and idles just fine. But dies once you give it gas. Any suggestions?

Thanks
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post #2 of 4 (permalink) Old 01-10-2012, 05:09 PM
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check exhaust lobe on camshaft
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post #3 of 4 (permalink) Old 04-26-2013, 07:27 PM
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Same Issue

I am having a similar problem. Idles great, except for what looks to be fuel coming out of the carb when I hit the throttle (slow or hard). Just took off the camshaft today and compared it to the brand new one and I really can't tell the difference except for bigger oil holes.

Intake and Exhaust Arms look fine too.

I put a new chain on and crankshaft sprocket I also cleaned the carb, gas tank, fuel lines and check the fuel pump. It's a 1997 Sportsman 500

What do I look to do next... I thought I had the timing correct. Checked twice... ALSO when idling I sprayed starter fluid into the carb slowly and fast and it sputtered out and dies the same as if I hit the throttle. Tried the reverse override switch too, but still same issue.

Last edited by chalupien; 04-26-2013 at 07:38 PM.
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post #4 of 4 (permalink) Old 08-18-2014, 04:43 PM
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kinda same problem

wide open it run great but at about 3/4 thorottle it spits and back fire until it dies or whire open thorottle..... wont idle well if at all either...

2006 sportsman 800
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