Ratranger

Thanks, it should be a fun bike when it's done. They're kind of the OG grom. I think I want to go full 80s and finish it with the...

So despite the norda being ongoing, I picked up another project. A 1987 ysr50, it's currently ugly, and will be getting a few upgrades...

A little progress. Mufflers are tacked in place so I can still make changes if I want.

I've had good luck with the amazon alphabet soup branded carbide tipped hole saws. For the various sizes they are pretty cheap, and...

Nice, it definitely takes practice. Aluminum is a whole different animal than steel/stainless too. You'll probably go through...

On this bike it's a 4-4 system so no crossovers or merges. It's 1 3/8 od at the head stepping up to 1.5" od after the first bend...

Kind of a pain to sneak past the lower engine mount, frame and outer exhaust. But it's getting close.

Muffler #1 basically in place.

The real start of the first header tube. I'm going to run it back to where the muffler will mount, then bring in the #2 tube a little...

Best advice I can give is practice. When you stop at a weld supply place to get gas, pickup a variety of filler rods. Filler is...

Probably has an air filter and catches all the dust. The weld shop where I work has a similar set up that has to be used for any of the...

I have that tungsten grinder, it works decent. I'd like one like the sharpie brand, but over $400 is hard to swallow for a hobby extra.

You can lay down an argon cylinder, you shouldn't lay down an acetylene bottle. I can lay the 125cf bottle in the back seat of my...

So one problem with frame swaps ends up being the exhaust. The #3 cylinder was pointing right at a frame rail. I had to take .35" off...

Nice, I recommend atleast a 125cf cylinder of argon. That's the size I have and if I weld a lot it'll be gone in a week. Also...

They're from an exhaust stud kit supposedly for a ford engine. M8x1.25 50mm long. I bought the kit because it was cheap. Not sure how...

Stubs are finished, now I can start planning out the exhaust.

So I ran into a problem, the stock exhaust stubs were very rusted into the stock pipes. My solution, new stubs made from 304 stainless...

So the RS style carbs are a pain to sync, last year I synced them with manual gauges. This year I bought a digisync, and it's way...

Just slapped on smaller megaphones.

Here's a bigger megaphone, debating 4-1 vs 4-4. Could possibly go inbetween on megaphone size for 4-2.

So a few lessons learned. 1. With the pump I'm using you need a really heavy wall pipe nipple for it to seal. The normal pipe nipple I...

Yep, that's definitely a better video than most. A lot of the videos people just lay the pieces together and weld the edge, rather than...

Tomorrow I make an attempt at making a hydroformed megaphone. If it works I'll upload the dxf file to sendcutsend and get the pieces to...

Working on footpeg mounts. I'll probably make a custom bolt to act as a mount and brake pivot. The footpeg will be able fold up...

I did it, but you need a good power supply, battery acid is available at any auto parts store, lye can be bought online, same as...

Welding went better than I expected. Vapor blasting the cover probably helped. Only had a few spots where contamination bubbled out...

Stock the cb750 does not, this is an upgrade using a modified r6 flywheel and the matching stator. The kit is from an SOHC4 forum...

If it wasn't $1k for the mufflers I'd love a set of the hydroformed megaphones from Rayson's in the UK. But I guess 4 mufflers from...

Made some paper cones so that I can have a visual of 4-4 vs 4-2 exhaust.

Yep, 60% balance, 130hz, 60a, 15cfh argon, ck layzr tungsten. Only upgrade on the setup is a better more flexible hose for the torch.

Oil tank is water tight and filled to the brim holds a little over 6qts. So it'll have plenty of air room with the 3qts that was stock...