Author Topic: New to 2stroke need help building mine? (Read 1985 times)

HustlerRacingInc. · « **on:** March 21, 2016, 09:37:30 PM »

I just bought a 1986 trx 250r it has k&n air filter and Curtis sparks full exhaust but while I was riding it this weekend I blew the muffler off the front twice replaced the springs but now it won't hit the power band for some reason? Please help! Maybe the top end?

2SMOKE · « **Reply #1 on:** March 21, 2016, 09:51:44 PM »

What's your plug look like?

HustlerRacingInc. · « **Reply #2 on:** March 22, 2016, 12:20:56 AM »

Quote from: 2SMOKE;65781

What's your plug look like?

It was black when I pulled it out and I replaced it with a new one also?

Rupp250 · « **Reply #3 on:** March 22, 2016, 12:33:38 AM »

It was probably pushing the pipe off and going extremely lean. I would pull the head and check what the piston looks like.