so it also works on the LM carby with no idle screw. So in the end you just have to live with whatever idle speed you get on these carbies even after adding the washers? I guess if it's too slow and stalls you have to take a washer out or something? Trial and error I suppose
Hi Converse,
Yeah that's right. As far as I can tell there's no definitive measure of how many washers you need, it's a trial and error, based on how the mower is running, which can be a bit frustrating but I find the PowerTorque engines often rev a little high so putting an extra washer first is normally a good idea, remove one if you need to.
I had to sort through many washers to come up with one combination that worked, though I found a pack of washer assortments if mine that included a size that fit over nicely, with a thickness not far off (1.7mm approx) I'll try that next time.
Hi Mowerfreak,
Just remember, the maximum thickness recommended is 4 of these brass washers, and that would be for extreme wear. The mower I was working with was over revving quite a bit, and 2 washers resolved the issue. A standard thick washer also resolved the issue but caused issues with the throttle cable movement, so don't go too thick with the washers or you may run into other problems. Stick to the super thin washers.
