Ok the big question of the day is horsepower, how much did the atc's have, I have heard the us90 had 6-7hp, but what about the 110,125m, 185s, 200s,m,x,e, 250r, and 350x, if someone could tell me what they know, that would be helpful in pondering 3 wheeler stuff.

 

Here's some that I found

85 250R-38.8hp
70-3.5hp
(early)US90 - 7hp
110 - 7-8hp
84-85 125-8hp
185S-9hp
200S-10p
192cc 200X-12hp
199cc 200X-14hp
The 2 valve 250 class shaft motor-15hp
the 4 valve 250X motor-16hp

'87 KXT 250-41hp