I know this is an old thread, but this is what will go in on my Blasty:
4 stroke electric / kick start 17 h.p. stock and twice the torque of the blaster. Yes this engine is faster than a piped, reed, filter, well tuned Blasty. This engine is very, very strong and you can't kill it. Parts availability is very good. Engine price is great to. The fuel tank will need to be modded (with an industrial heat gun) in order to acomodate the taller engine, motor mounts fabbed and a few odds and ends. Fab a battery bracket right where the 2 stroke oil reservoir used to be.
This engine will make the Blaster Great!!!!!
We already have a 22 h.p. (some mods) engine in another, little bit bigger frame (imagine, it's a chinese frame) It weights a ton. This chinese quad, with the old 250cc engine, I would just smoke it with my blaster, but know, it's untouchable. Also, it's about rideability. These are very smooth, even with some mods. When you mod a 2 stroke (it all depends what you mod it for) The can become temperamental and hell to ride in the trails. But you already knew that.
For all of you out there looking for a cheap, very strong, good engine to transplant into your Blaster...This is it.
I know the 2 stroke lovers will start a war (I have 2 more 2 strokes), but once you try this, you'll know. Besides, most of the guys rising hell about these conversion have never done or even attempted one. So let's hear it.
TORKER.