Kimjon

Rear end chopped up And then put back together again:

Prepped neck: And welded in place:

Nice work, from what I can see it looks great! Would love to see more photos of it please?

Thanks, making up for a (perceived) deprived childhood :-). My go-to engine of choice these days are the 49cc mini quad engines. They have enough power for drift trikes and kids gokarts. Next step up are the 6.5hp Honda or clone engines...then after that you're looking at a motorbike engine. The 49cc motors are $100 new on trademe, plus you'll want an exhaust for another $30.

Your welcome to come out if you had nothing better to do. I tend to always have a small project on the go, along the lines of these drift trikes etc... I'm not trade qualified, just a self taught butcher, so prepare yourself by lowering any expectations

And later on: Mocked up for inspiration. Will get around to actually making it work in a couple weeks.

And then:

Active relaxation at its best, my ADHD has kicked in again and no amount of Ritalin will make the ideas go away...so fuck it - may as well make it: Starting point:

It's alive!!! The motor was built out of left over parts from other such projects...very pleased that it goes so well. It has very high compression so should be good to go!

All bolted on, and seams to be okay: only thing preventing it from working is the throttle now, which I hope to have by Friday?

EBay sprocket arrived today, so I modified it to fit:

Pretty much finished, just waiting on a sprocket and throttle cable to finish it off. I've made it as a gift for a mate (nickname "skinny"). I already have one, so the only thing better than one is racing your mates on another one. photos:

Paints done. I've done better...but it's rough enough. Now it's literally a matter of watching paint dry, then onto final assembly.

Etch primer: Waiting on it to dry, then final paint to come.

Few more brackets to hold stuff:

Okay, smashed it out today...non-stop from 9:00 to 16:40 which goes to show how a stupid amount of time can go into a toy! Exhaust done: Then a bumper:

Fit a waste gate bypass eh? Liking your style!

Thanks Muncie - I'm using #35 chain/sprocket on this one as I had some already, but your offer was much appreciated. Exhaust: The factory exhaust just had a round hole, cheap to manufacturer I guess...but we can do better than that! So I scribed the exhaust port shape onto the flange and tickled it into submission. Finished up by draw-filing to make sure it mates up flat (it was miles out, most likely warped from factory welding). I then cut the expansion chamber up like I did in the gokart build, with the plan to wrap it around the immovable parts but still make a nice flow...okay; its all about looks, but hey.

Thanks. It's working great, holds about 70% air pressure in the tank overnight (for 15hrs its turned off, on an automatic timer from 7:00pm to 10:00am the following morning). That's heaps of air to open/close the gates many times. The cylinders are choked right down, this has resulted in the gates staying put even with no air, which wasn't planned...but a cool spin off. I was thinking about locking cylinders, but they really aren't required as the gates don't move. I painted the cylinders in 2K paint to try hide them as the silver contrast stuck out. I think they look much better now. Overall I'm stoked with them.

Then I ran out of mig gas. This wasn't really a surprise...i knew the bottle was close to empty, but been a tight arse I decided to run it completely empty. Just sucks that its a weekend. Anyway, all fabrication is done, just gotta stick it together with the "metal hot glue gun"

Then I made this engine mount...once again I over complicated it. I wanted to shift the engine rearward hopefully preventing burning my arse on the exhaust.

Okay, no bender jokes please: yes, this is the world's most complicated bracket to hold a simple plastic fuel tank.

Some minor butchery and voila!

Going to use this rear end from a kids quad. I brought it off trademe, someone scavenged all the good bits for a project of their own... but all I wanted was the axle. These old school gokart rims bolt straight on too, awesomeness!

Do it, it will be badass!