my boy has a pred90 2004, it revs realy high when you're taking forward and reverse. it is not going fast at all. it almost seems like its not shifting pass first.

 

It is a cvt transmission so there are no gears for it to shift. Sounds more like it is simply time for a new belt.

 

thnks, i dont know much about atv but is very difficult to change a belt

 

No. It is on the left side of the bike as you sit on it. You simply pull off the outer cover, have to take off some of the footwells and kick start first, use an impact wrench to break loose the nut holding on the pully slide it off and simply take the belt off.

Post this question in the kids quads section here and ask the same question. They can give you a detailed step by step and some of them have pictures to help you.

 

thanks again

 

anybody, is the belt on the predator 90 supposed to be loose? is there a tensioner ? help please!

 

No it should not be loose. If it is loose that is why his bike is revving up but not going anywhere because the belt is just slipping. It is time for a new belt. The pullies on each end of a CVT tranny are variable. As the speed of the pullies increase one pully increases in size while the other decreases in size, changing the "gearing" of the quad infinitely. (think about the gearing on your old 10-speed, of course now that is a 21 speed bike, it had different size sprockets in front and back) This is how it gains speed without "switching" gears.

 

is there a way to adjust the tension? only because the belt that is on there looks new . and thank you again

 

Technically no. The tension is controlled by the pullies which have weights/springs that control how and when they open/close. So you could have a broken or weak spring, I doubt that though. Most of the time you cannot tell if a belt is new or not by looking. If the machine was never in mud and bad environments the inside of the drive case will stay fairly clean and the belt only makes contact on the edges. If the belt is loose it is more than likely stretched or the edges are worn off. Take it off and take it to a dealer and compare it to a new belt. I am pretty confident that you will find it is worn out, especially on an '04 model.