Join Date: Oct 2002
Sportbike: XB12R, H1, TTR125
Years Riding: I still have some money left...
How you found us: old member
A decent running Yamaha TD2 will make about 50HP. That's probably doable, with some money, to your bike.
The advantage that the street frame has is that it is more durable. The GP Yamaha chassis are light, and they fracture.
Yeah, you can eliminate the injector lube. Yamaha used to have a block off plate for the injector pump. On the carbs, you can just cap the little ends and you'll be good with that part of it.
Two stroke engines are unique. Do you have chambers yet? Those are going to cost some good money. The chambers are very important, and they are important to have them so that they don't drag too bad. Yeah, you can port it and all, but, again, a two stroke is unique. Usually there are power gains from changing the port timing. As an example, you can use two base gaskets that raise the ports, then cut that same amount off the top of the cylinder and get a very nice gain. But you'll really want to research that stuff up front to find a combination that works with the carbs and pipes you've got.
"Super" Dave Rosno
Team Visionsports Racing
Super Dave's Race Against Childhood Cancer