I was wanting to know what pistion i could use on my raptor 660 with out changing any thing else like head etc. I use 91 -94 octane gas so i guess high grade pump gas.

WHat kits and where can i get them

also no one answed my post about tunning my raptor so i guess i will try again. maby this tilte will be a better eye catcher.

For trial riding and some quarrying uumm (is that a word) (going to the quarry) what exaust would be good for me. I have a E seires whit brothers right now and stock head pipe. I am going to put a K&N filter with no air box and aslo change the jetting.

What do you think and what kinda damage (money) do i expect to pay???

 

If you want to run pump gas, a 11:1 piston is about as high compression as you can go. I am running 11:1 on 93 octane and it runs good. I would recommend the Wesico 11:1 piston and I would go ahead and put in a camshaft while your in the motor.

 

get the CP piston 11:1, any higher compression uses over 91 octane. port the head change the cam, and dump the e-series then look into buying a sparks, or simliar. and you'll love. the above engine work will run you about $1000 not including the exhaust.

 

oh ok

where can you get that stuff from?

Thanks

also is this a good exhaust

Yamaha 660 Raptor Yoshimura Full Exhaust RS-3 Comp

 

oh and one other thing do you think it would be a bad idea to do a lot of stuff to my raptor because it is an 2001 and that trany problem??