All 2st power valve controller

has anyone had a go at fabricating a home made power valve damper. i am looking at making a prototype in the next couple of weeks (work permitting) hopefully should cost around $80 aus and have infinite adjustment.

looking forward to see what you come up with

if your talking stepper motor..or servo motor


I was thinking about that a while ago...might be worth doing some experimenting.

I have a Provini unit and it's a relatively simple design, but it works well. I really loved the way it made the WR so smooth when you set it on the stiffer setting.

Yes thats a damper unit...I understand that simple and it works

just finnished mk1, will test it out this weekend.
if all goes well i will pretty things up and take some photos but it is a very cheap solution to delaying valve operation whilst on the move.

it worked, the mechanism is operated using a twist lock push pull cable.
i have attached the handle to my home made radiator guards the other end of the outer cable is attached to the engine via a bracket mounted underneath the hts cover and the inner cable is attached to a spring which in turn is attached to the power valve actuating arm.
i have drilled a hole through the bottom of the hts cover to allow for the inner cable.
when pulled fully the power valve barely opens, at half way the bike still revs clean with no hit until the power valve starts opening higher in the rev range.
should come in handy and always good to have an option.

Pics please