Dec 06, 2009 · Whenever I really twist the throttle, the engine takes on a different sound: it's more high-pitched and louder, more than normal. Also, it accelerates, but not like it should - it seems to take a little bit for it to really kick-in and it feels like during the first 2-3 seconds of doing so, the engine is like loose, missing or something.
Jan 03, 2008 · my 1998 Polaris 500 atv runs but I have to leave the choke out, what's wrong ? Update : It idles kinda rough, but when I push the choke in, it sputters and dies. Oct 21, 2010 · It starts fine then runs good until warmed up. But then dies out when idling and sputters at mid to high rpms. ... I have a 2003 Polaris 600 Sportsman that will run fine for awhile and then start ... The engine in the Polaris Sportsman 500 is self adjusting. There is no need to adjust the timing chain on the Sportsman 500. If you are hearing the chain slap, it is time to replace the chain, not adjust it.
1. Lack of power when accelerating. One of the first symptoms that a vehicle will display when the air charge temperature sensor has failed is a noticeable reduction in power when accelerating. A bad or failing sensor will not send the correct signal to the computer which will negatively affect the computer’s air / fuel mixture calculations. 2.
Quantum Intank EFI Fuel Pump w/ 58 PSI Regulator for Polaris Sportsman 570 EFI 2014-2016, Replaces 2205469 SKU: HFP-396-U5 The 2 nd generation HFP-396 is new and revised for 2017 to include pre-soldered connections, two flex hose lengths to cover all 2011-2017 applications, and most importantly now includes a 58psi regulator which Polaris ... 800-596-0785 Login or Sign Up; 0. Search × 2007 Polaris Sportsman 450 500 EFI Repair Manual. 2008 Polaris Trail Boss 330 Repair Manual. If you own an ATV, then you can't go without an ATV repair book. It will come in handy during desperate situations when you need to get your malfunctioning ATV moving again.