Well, new to the site. stumbled upon the site looking for some info. i have a 98 blaster that i got from trading a roller 86 camaro z28, now i just use the quad to screw around at my house and take to the track with my car. im sure i gain tons of help on here because i know very little about my quad and need to learn lol. after about 2 weeks of having it i took it in for a tune up and i ended up rebuilding the motor. had everything reworked and the piston chambers were bored out beyond any yamaha piston size? so they had to go after market, not sure of current cc. it was a 2-stroke 250.
here are some pics
here are some pics