Ok a few weeks ago I had ask why a 660 raptor would not go into second gear. Well I had found out why when I took it to the shop and it was no good news. Come to find out, my motor is going to be split apart for a new second gear. And the labor cost is unbeleivable. The question i have is what can someone do to the motor while it is apart? THANKS!!

 

You can get a carrillo or b&m rod, and a high comp piston, then send the thing to Failicon to be stroked, bored out, and balanced. You could also get a port and polish on the head done. I can have that done for you for about $200. You would also want to get some kibblewhite black diamond valves and stiffer springs. Then you can get 5 yzf 450 dirtbike clutch springs to help the clutch. Also get an L&A designs one-way bearing kit.

All of these are just suggestions of course...and what I want to do. (I've already got all the head work and clutch done.

 

He said it all.

 

Seems like they are fixing the tranny problem, well you could turn your motor into a 686, or even higher, but you need some money. If you do have the money, have them do some head work, and maybe put in a new cam in there. When my motor was open, they installed new titanium oversized valves. Well if you do something, you will have a new machine in your control.

By the way, do you have a pipe, K & N already?

 

no(do not have a pipe or k&n filter) i had not had the raptor for about 3 weeks now,the shop where i have it said a pipe would be better than a cam. I don't know that much about my raptor so I am going by what he says. OK I am wondering does a K&N air filter make alot of difference?

 

Not alot (K & N), but a pipe will help you alot.

 

hey how do you copare your 660r against your 450?

 

The YFZ has better acceleration, stays in the ground better, is a better jumper, but not as comfortable, and lacks the torque of the raptor.