What does EFI mean on an ATV?
Electronic Fuel Injection
Most EFI (Electronic Fuel Injection) programmers are “plug and play” meaning you plug them in between the ECU and the throttle body’s electronics (injector and TPS) and this allows for quick modification of the stock ECU mapping.
What does ho mean Polaris ATV?
high-output
(“H.O.” refers to the high-output 499cc engine.
What does a tuner do for a four wheeler?
ATV tuners and programmers allow you to adjust your vehicle’s horsepower, fuel efficiency, speed and everything in between to the desired level to get the most enjoyment while venturing through unexplored trails.
When did the Polaris Sportsman 500 EFI come out?
I bought a used Polaris Sportsman 500 EFI year 2007 in November 2011. It only had 6 hours on the meter an had obviously been sitting a lot. After i had run it for a few hours i started to have problems with the idle. The problems can be divided into three.
Why is my Polaris Sportsman 500 not running?
The throttle cable tension was to loose causing the contacts in the ETC switch to make contact. This is a safety mechanism that prevents the engine to run if the cable is stuck with the throttle in open position. But this also happens if the cable tension is to loose.
What’s the idle level on a Polaris Sportsman?
Everything looked fine but then with a screwdriver I manually pushed the throttle wheel back against the stop screw. I heard the idle decrease just a few rpm, I pushed harder and then whoops the idle sunk to correct level 1180 rpm and stayed there also when I stopped pushing on the wheel.
What is the repair manual for a Polaris Sportsman 500?
All pages are is great to have2009 POLARIS SPORTSMAN 500 EFI Service Repair Workshop Manual. Thanks for visiting! 1.
Why is my Polaris 550 XP sportsman not cooling?
Our 2009 Polaris 550 xp Sportsman has started to overheat the fan doesn’t start any more. I applied 12 volts to cooling fan and it works fine. Replaced temperature sensor both old and new the red light would come on. Switched relay with one of others same result.
When to change the oil in a Polaris Sportsman?
A rise in oil level during cold weather can indicate contaminants collecting in the oil sump or crankcase. Change oil immediately if the oil level begins to rise. Monitor the oil level, and if it continues to rise, discontinue use and determine the cause or see your dealer.
Why is the fan not working on my Polaris ATV?
Unplug the temp sensor and turn the key on without starting the engine. The fan should run because it defaults to “ON” when there is no reading from the sensor. Wiring is almost always the problem. Have you tried pulling apart the connectors and making sure they are clean and making good contact? Even under the relays (a real pain)?