i was wondering if anyone had any ideas on my 06 sportsman 800,ive been around polaris atvs for awhile and am mechanically inclined,but im a newb when it comes to efi, so machine was running great, but battery was getting bad,(cranking hard) then it sat a couple months,and battery died, so i jumped it with my truck, started right up,idles fine but if you try to ride it,and give it throttle it has no power, backfires and just runs like crap. i since put abrand new battery in but same problem.polaris dealer was no help. any help is greatly appreciated,thanks in advance.

 

Could be bad fuel if sitting up for a while, I would change that,plus check air filter and plugs. If still have idle, popping back problems could be efi related. Check for codes on display. Check sensor wiring for chaffing,broken wires. Repair harness kits available for T-bap,Tps sensors,etc.. OPT

 

What OPT said. For the T-bap which seems to be a common problem on the 700 & 800 take a look at this link.http://forums.atvconnection.com/pola...ap-wiring.html

 

does sound like electrical like the tbap harness. make sure the plug plug wire/plug is good and maybe put does dieletric grease in the cap. sometimes they break down and spark will be jumping through. imo

 

thanks guys,i will check that tbap thing,oh i forgot to mention,this is very embarrassing,when i jump started it,i hooked the jumpers up backwards for a few seconds,first time i have ever done that! just days before that my neighbor did that on his truck,and i thought what a dumb ***,how could anybody do that? anyways hooked up backwards and possibly fried something? checked all fuses they are good. well guess ill start with the tbap,thanks again

 

NOT GOOD! Try the repair kit. I would cross my fingers for you but RA won't let me! Good luck. OPT

 

pray that you didn't do damage by reversing cables as a few have done it causing major electrical componant damage.