[HondaRacing83]

Im new here,im usually on ATVRiders.com,decided to come here for additional information.so back to the main topic, do any of you guys have a Curtis Sparks +6 timing key?if so is it a noticable power differance?thinking about getting one

 

[tomgodd]

Welcome to the Family!
I hear it is a noticeable power increase. I also read you can only use it on a stock motor. Intake and exhaust are OK!

 

[Helmut]

Welcome to the forums.

 

[HondaRacing83]

ya thanks,you cant use it with a bored or stroked motor.anything else is ok

 

[tomgodd]

From what I understand no internal motor work. It has been a while since I read anything about it
Curtis Sparks Racing: ATV Quad Racing Engines

 

[Redracer]

I have heard nothing but good things about them