1986 510 4stroke twin shock project phase #2

More progress, bike coming along again, after some time off after i got laid off. I figured out how to start the beast, after never really having a 4 stroke, there's a true technique. Bolted on a UNI dual filter right to the back of the carb with NO airbox to start with. Funny how the bike before
used to backfire (pop) a little on de-acceleration, now it runs great with the carb spaced back farther & UNI filter.

Ok, after i got it running & figured out how to start it, i worked on creating a airbox. I started with a 83-84 2 stroke one & after
looking at some pictures of original bikes determine i could modify the 2 stroke to work. I mounted it in the frame then drew parallel
lines to match the angled frame tubes & with a hack saw cut the front section off carefully along those lines. I now had a open front
section & the piece i cut off, which i again trimmed & pop riveted back on & sealed back up. Because the 2 stroke & 4 carbs are not
in the same height in the air box, i had to create a block off plate for the old carb hole location & cut a new one. I didn't take 2 many detail
pictures of the construction, but here's a few when i started. I'll try to take some pictures now that it's mounted.