start looking for a junk YZ 490 from 84 to 90. Those years have the pipe on the right side. Maybe you could get a junk one to see if it would fit then I believe there's all kinds of new out there you could drop squish on.
with the two stroke oil after years of use it is almost impossible to do any other welding other than brazing and even that is iffy.the epoxy type fixes are useless.
Floyd said friday night he got his pipe blown out and his crank stroked. He was surprised at what it costs now to get that done.
Floyd said friday night he got his pipe blown out and his crank stroked. He was surprised at what it costs now to get that done.
what i have found from doing my own for so long is:
1. sometimes I can make a new one faster
2. when dealing with cracks and a maze of them sometimes it is better to cut on one side or the other and weld or braze from the back and front.
3. brazed ones will usually keep from cracking longer, but taking bends out by sealing the ends and heating them up is all but impossible. if the brazed section raises back up at all, it will generally leak badly.
4. if the header and cylinder junction is good, and the back cone is good, and I have a decent one to work off of I can get the length right and end up with the same performance that I began with.