because you spend alot of money and time making it work when you could just go build a big banshee motor have it faster lighter and more universal for the same price or less.
ive got a set of serval cyls ill give you them plus 75bucks because the cyl has 2 small nics in them you can hardly notice but if you look you will see them.
i am making my own this weekend. its pretty simple if you use the stock carrier cut the mounts off the old swinger and just follow the dimensions and extend or shorten or whatever you are going to do
It might be the the Two Stroke Enhancement Device allowing too much liquid into your crankcase causing mass amounts of anti 4stroke matter build up. I would seriously make sure your T.S.E.D is adjusted properly.