We have a friend that his 800 efi stalls out while riding and it has to sit for anywhere from 15 min. to 45 min. and then it will restart and run fine for awhile but keeps happening. He had a 500 before and it happened to it also and was told by a dealer that it needed a new fuel pump. Had friends that just went to wisc. 4 wheeling and one of theirs also did the same thing so it is more common and I have to think that it is something simple.. Can you help us out?

 

Check throttle cable, should only be 1/16 of an inch of play...also check battery make sure it's charge is full..and check the bolts/wires on the battery, make sure they are tight. then check the air filter. Mine was stalling out too, after I charged the battery overnite tightened up a loose bolt on positive side then tightened up the throttle cable, it's been good to go. Not sure if it was one of those issues or a combo of...but it worked.

 

Mine did that after going through hardly any water, or when I washed it, be sure to check out the spark plug wire's and boots, the wires have been known to rub through, and ground to the frame, also, I di-electric greased up my boots, and the top of my plug, and all has been well since

 

hi there my bike did the same thing i spent alot of time and money trying to fix it the dealer is rite its the fuel pump mines a 2006 sportsman 800efi when i went to polaris to buy one they told me i had to buy the tank with the pump for 500 bucks thats bull i got one at napa for $170 and it works great no trubbles now

 

I'm just throwing this out there, but my friend and his wife both have new Sportsman's (an 800 and a 500) and they were having issues with them stalling as well. They called the dealer, and he asked them if they had key chains on their keys...? I guess the key chain may catch just enough to cut out the ignition. I don't know if that will fix your problem, but I would remove the key chain and see if it continues.