[steve92skidoo]

I have a 1992 Mach 1 with a 617 and I am thinking about changing my rotary valve.  I would really like to know what is involved in the switch.  What do I need to do not to screw this up?  Do I have to change anything else for this "mod" to work?  Any info from someone who has done this would be great.  Thanks

Steve

 

[670HO1]

There is one special tool that you will need to get from skidoo. It is a degree wheel that you use to time the valve. Other then that I am not totall sure. I am going to be doing this soon so I will let you know how it goes.

 

[kid rocker]

You definately need a degree wheel.  Try sending Idooski an instant message, he has a lot of experience with the rotary valve.