Monster, would you be willing to measure this up for me?
I have a watercooled Maico 500 and in looking to update the powervalve thought I could get away with one from a CR500.
Unfortunately it is way too big and even with the housing machined out to the max won't fit.
I'd imagine one from a 250 would be a better fit, would just need to know distances between bolt holes and flange size.
If it can be made to fit my bike easily, consider it sold.