Artic Cat Climber minibike.

[katoranger]

Here is the angle I welding in to position the engine further back.















Exhaust mock up.


Stock muffler. Exits on the side.


Old bike seat post that I cut a 45 and rewelded to make a 90.


Should sit like this after I make a flange to bolt it on.


The pit bike exhuast slides over the seat post. I think I can clamp it tightly.

[Weldangrind]

I hope you don't mind, I edited your post to add space between the pics. Makes 'em a bit easier to see.

I like what you're doing with the muffler. If you don't cut the header, I'm sure some ChinaRider would be grateful for it.

[Weldangrind]

Interesting fuel tank placement on the Tecumseh. The old Briggs motors I'm familiar with have the tank under the carb. The benefit to the Tecumseh design is that the fuel remains cool, and away from the hot exhaust.

That muffler is going to look cool on there.

[Bruce's]

I understand I am new here and don't want to sound disrespectful ,but that exhaust you have welded up is too restrictive and will become red hot and will more than likely give you head gasket problems .Look at a iron or copper fitting for plumbing and you will see that even the shortest of 90 degree fittings are still cast with a circular arc ,not a squared off corner ,and your exhaust should be no less of an arc itself .Even if you did two 45 degree mitres it would be better than what you have right now .

[katoranger]

Originally Posted by Bruce's

I understand I am new here and don't want to sound disrespectful ,but that exhaust you have welded up is too restrictive and will become red hot and will more than likely give you head gasket problems .Look at a iron or copper fitting for plumbing and you will see that even the shortest of 90 degree fittings are still cast with a circular arc ,not a squared off corner ,and your exhaust should be no less of an arc itself .Even if you did two 45 degree mitres it would be better than what you have right now .

Bruce, thank's for the tip. I considered buying a plumbing 90. I may go ahead and do that yet.

I did think about it not flowing very well. Wouldn't be the first scrapped idea.

Weld. I think that I am only going to use the muffler portion.

[katoranger]

The seat post tubing ID is the same as the exhuast port.

[Weldangrind]

That's a good start, but I'm inclined to agree with Bruce about flow. Is the exhaust port tapped as well as designed to accept a flange?

[katoranger]

The port is not tapped for pipe thread. I think I will scrap design one and get a 90 degree round fitting and weld a flange to that.

[Weldangrind]

Maybe you can weld the seat post tubing to the elbow, so the muffler will slide on easily.

[katoranger]

Originally Posted by Weldangrind

Maybe you can weld the seat post tubing to the elbow, so the muffler will slide on easily.

I plan to do that. Farm store should have something when I go buy feed later.

[MICRider]

That's going to be a riot when you get it all assembled .

My first bike was a Brigg's powered mini (no suspension) when I was about 6 or 7. It had a sticky throttle and no brakes, bad combo! Lol

[katoranger]

I must have had the same model.

[katoranger]

Progress has been slow lately, but school is out now and I found the chain tool. We will get working again on this.

I have been sidelined with a mower I bought to flip, but its done and sold.

[Weldangrind]

Was the mower flip worth it?

[katoranger]

Yep. I had to do very little to get it going. Zero turns bring good money around here. Lots of large yards.