yz 85 engine in a blaster/300ex chassis

[300ex willy]

Well this will be my first big project quad but my neighbor(who is an experienced atv mechanic) has agreed for a price. Well the first question is can it be done and the second question is will it be good for motocross and the occasional dunes? Anyone that has done this please post some pictures/give me tips and ideas for along the way.

[300ex willy]

Would it be better to just get one of those premodified cobra 70s to keep in my class until I turn 16?

[born2ride14]

use a 100cc 2 sroke ull have a lil more power

[300ex willy]

Well although it does sound good I would like to race it and I have to stay 90ccs or below.