Nycfd

Thanks for the advice!

Should I consider going to a stock head with a trail port? or a different 421? Trying to save $ but also want a yfz450 killer. O and he had 39mm carbs from what I have seen on here I know those gotta go if I want better low-end power.

I was thinking, keep the 4mil crank but have it trued/welded, and replace the top end. I just dont know what to replace it with that is cost effective.

Forgot to mention the motor looks like hell, the white oxidation covers the head. I clean it up and the next day it has some again.

I have a 2002 banshee that I just tore apart to pc the frame and put on new a-arms axel ect. I purchased it in the spring after it had sat in a shed for 2-3 years with no use. It has a 4mil 421 that the previous owner put together as a kit from trinity. From what I have heard trinity is junk. The motor runs, I just dont trust it because it sat and because of who made it, also it has ZERO low end power. I dont want to put more than 800 into the motor, the rest of this build is costing enough. Any idea?

My 4mil read 210 psi in both cylinders last I checked. Used a brand new gauge from sears. I guess I should believe it?

New here. I bought a 2002 a few months back and have been doing work on it, this site has helped in many ways by just looking though old forums. Great site.