I'm a newbie to this forum and have found some very useful information. I recently installed a 2 cycle kit and it works really well. The ability to jump start the engine is a neat feature. I'm wondering why a similar clutch set-up doesn't seem to be available with a 4 stroke engine? I'm riding with some friends who have 4 stroke rope start engines and I seem to have a better starting system while they enjoy a much smoother ride. Will appreciate any answers