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2005 sportsman 800 efi issues

Lph008

By Lph008
in Polaris ATV Forum

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Lph008 Newbie

Lph008

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Recently picked up  a 2005 sportsman  800 efi. The issue it had when I bought it was really low idle and rpms wouldn't go over 4k. Top speed was only 30 mph and basically had no torque. 

What I found when I tore into it was.  Throttle  position  sensor wires were broken. So I replaced the tps sensor and calibrated it, also I spliced in the upgraded obt  harness for the tbap sensor and also replaced tbat sensor.  It now idles almost perfect,  still surges once in awhile.  

I also changed all fluids, replaced belt, clutch buttons seem to be good and also the clutch rollers. But I still have the same issue it has no power/torque. Rpms are currently hitting over 6k but it won't go over 30mph, acts as if that's the most it has lol

Any help is appreciated 

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