[kevin292]

Hi, I have an 87 trx 250 utility model, what can I do to the engine to give it some more power?

 

[Billy250X]

pipe K&n filter remove airbox lid and jet kit.

 

[TRX2fiveO]

Agreed^^^^ that's a good start without tearing into the engine.

 

[Billy250X]

If you want real power a cam high comp piston and some 93 octane fuel will give it a real kick.And there is always the possibility of a +12mm stroker crank.

 

[Helmut]

Just my opinion, but if I was going to put a lot of money in one by buying those parts, I would get a sport quad. A pipe, K&N air filter, and jet kit wouldn't be to bad, but if you are going to buy those other parts, I would get the sport quad.