Yeah the ones that come with the yamaha/mpi roll over valve and tether kit use a 60/40 and the ones I installed were 40/30 so what ever the difference is its what the problem was
I think a 155 would be good especially if your gonna be riding in the mountains it'll float better then the shorter tracks so she won't have to have the track speed up as much
Rmk 600 she'll be able to throw it around if she has to and it won't be to heavy and think who's gonna be getting it unstuck so you definetly want it to be light
My dad used to ride a 98 srx 700 it had some performance parts on it and after having it for 4 years and nothing going wrong with it besides trailing arms and such it got stolen, rode hard for six months by useless people then we Got it back and it still ran strong to this day but aftermarket...
This whole thread is pretty much pointless now but who cares what you ride, If someone who ride a doo knows or heard or a problem with a poo don t get all defensive just take it into note. But hey at least the thread is entertaining haha