Hi Alan, it is very simple but a bit difficult to explain in words. I cut the 3 lobes off the cam with a hacksaw from where the lifter hits the high point before it starts to drop in the stop position to the low part of the full run "V". File it up and make it smooth so all 3 are a gradual rise and fall for the lifter to work. This takes about 5 mins. I then fit 3 very thin washers under the cam (pain because they need a 7mm hole in them, I file them out to fit), this lifts the cam about 1mm, I haven't really measured it, but it seems to work. This lifts the cam so that when you bring the throttle control back to the start position it actually shuts the poppet completely so the motor will stop. Then I have the modified cap with an adjuster screw in it and when it is screwed in it starts to open the poppet and this is how you set the idle.This way you can have the motor idle perfectly and then you have full rev control through to max which is controlled by the fixed length of the throttle cable. Then you have the fun bit refitting the kill switch setup. Sounds complicated but is very simple. I did put a pic of the modified cam on here somewhere, I'll see if I can find it
