All of these questions are regarding scramblers
What year did Polaris start making concentric drives? Is there a noticable difference between concentric and non?
What year did polaris start making the current 4x4 system for the scrambler? (not chain drive)
What PSI should a 500 motor and 400 2 stroke motor have?

Any info would be great thanx

 

I am asking for a friend who is looking at either a 1999 400 4X4 and a 200 500 4X4, any suggestions on which he should go with.

 

Concentric drive started in 1998, thats also when the scrambler got the shaft drive up front. The 400 should have no less than 115psi and the 500 should be from 50-90psi (due to the de-compression cam)

 

sweet thanx big bad, that was the info I was looking for, ever had any major problems with the 2000

 

Lets see. I had a CV joint go bad on me due to a ripped boot. I replaced the chain, sprockets, a ball joint, hub seals, radiator cap, radiator petcock, hoses and a shredded belt. Just normal wear and tear items for the most part. Nothing major, that I didnt cause[img]i/expressions/face-icon-small-wink.gif[/img]