Try using a higher octane gasoline in this ATV. Many times the pinging is due to not using a 91 or higher octane fuel. A lower fuel like 85 or 87 may not be burning off as efficiently as the 91 octane which in turn will cause the pinging.
40Hp.
2 horsepower
The average top speed of a Polaris Sportsman 550 is 65 miles per hour. However, this quad can sometimes go as much as 68 miles per hour.
The 800, hands down. The 550 is actually on par with a 500 efi. However, the XP platform the 550 comes in is much better all around than the older 500/800 platform.
yes
I have had my 2010 550 XP EPS to 57 mph(94 km/h) and it still wants to go. It only has 250 miles on it yet and it may produce a few more mph but i doubt it
550 horsepower
79...and they also made one in 2008....it is called the Edge..... there are also some higher cc's like the 550......but my father and i have 2 polaris 340 TX's made in 79'. his is starting to fall apart, but they both still, run....... that and a 73 colt..... we have some older and not working polaris machines but they are in the weeds as we speek....lol All the Indys made had a 340 model.
The 2011 Ford Shelby-GT500's engine produces 550 hp @ 6200 rpm.
550 + 550 = 1100
30% off $550 = $385= $550 - (30% * $550)= $550 - (0.30 * $550)= $550 - $165= $385
The Polaris Liberty 550 twin makes the cut into 2010 not because it's the cleanest, but survives due to corporate fleet emissions. Polaris is not the only maker to offer a fleet of fan-cooled sleds for 2010. The Rotax fan-cooled engine powers a similar fleet of low-buck Ski-Doo models as well. We were quite surprised to see such an influx of these sleds for the current model year.