Putting the DT top end on is not quite a bolt on. If you can find a complete DT motor all you have to do is change the bushings in the swing arm mount, the DT uses a smaller bolt and the bushings are almost undrillable. If you can find a top end and the water pump, which is all still available from yamaha, you will need to make a drive gear for the idler, the crank drive gear ratio's are not the same between the blaster and the DT. The other option is to by the DT crank drive gear and the clutch basket driven gear. If any one is interested in doing this I can get you more info. The DT motor in the picture is basically a stock 200 with a pinned power valve, we took it with us to the races just encase we lost the 240 motor.
