Hi Guys,

On the home stretch putting my 88 2J MC18 back together, but I have run into an issue with the power valves. After an extensive search through forums on this issue, I didn't have any luck so here goes.

With the ignition off and the RC valve pulley manually turned toward 'high', it sweeps to the 'lo' position when the ignition is switched on as it should. I have also removed the cables from the servo motor to make the troubleshooting process a little easier, however when I fire the bike up, the RC valves do nothing until about 7-8k RPM, then the pulley rotates counter-clockwise (the wrong way) back past 'lo' around to the pulley stop.

Being a PGM1, I have tried 3 different RC servo motors, 2 different RC valve controllers, and even another PGM1 but they all do the same thing.

Has anyone seen anything like this before?

Many thanks,

Andrew.