i checked swing and i have 32mm of swing with one of the tighter belts on and then it gets too hard to compress the spring anymore by hand, nothing fouling. its a purple or mauve pink spring. if you scroll up a few posts there are 2 pictures one with nylon bushes and one above that with with the name and number on it. nakaru -1000??
i will just keep playing adding weights and swapping belts until i find a good combo. if not i can adjust the spring and apply more preload. but a shorter belt sort of does that. i am getting belt slip. the er3 has lots of evidence of belt slip black marks. im scared of making a launch lever because im no good at doing too many things at once when im riding. like patting your head and rubbing your belly at the same time. but i might have to learn.