I've got a hot glue gun!...
Probably different though............................huh?...

 

Whats a hot saw? I have an oxyactlene torch

 

thats a hot wrench

 

BBC Chain saw?

 

I have a factory BBC chainsaw.....got a factory SBC one too.

 

 

Typical hot saw.....

 

Typical hot saw.....



https://youtu.be/sM6deeiTRO4

Treed by Mitch!! That saw right there is using a PVL internal rotor ignition. They are pretty sweet.

 

250 cc dirt bike cylinder and crankshaft. Stator and rotor. Block of aluminum and your crafty machine shop set.....BAAAM!! Bangr saw!!!

 

Bangr saw...…

 

Bangr saw...…



https://youtu.be/JjXw--3jCv4

Yes!! :smt082:smt082:smt082:smt082:smt082:smt082

 

 

 

Get the Angry Beaver.....

 

I'm a 2 stroke guru, ive never built a bike/ hot saw but on my bucket list. I'm some what in the know of bike hot saws based on curiosity and interest.

The common in open hot saws are 250 cc moto motors ( Honda Cr & kx Kawasaki) with the trans removed and the Rotax and various other two cylinder snowmobile motors split into single cylinder. The past few years the Rotax's around 330-370 c.f. have dominated. The sled motors are popular due to the power valved exhaust some what contrversual topic.

 

The only thing lacking here is a jet engine powered unit....someone's gonna do it...

 

Seems so unnecessary, but I kinda want one.

 

Same here, I want to build one bad but just can't justify the cost of doing it. It's a small circle so it's not like anyone would buy one from a unknown builder.

 

I would hurt myself. I can't have toys like that...……...

 

If it was just recreational /personal I seen one guys build from a 200cc Yamaha Atc blaster motor.that was pretty cool. I've built/ported a number of them, pretty inexpensive and accessible and easy to mod compared to a Moto motor.

 

Look like Buick 215's probably Range Rover motors.

 

Why yes it would be for personal use but I want the real deal. Jimbro seems to have some knowledge on these saws. I might have to pick his brain. I’ve never had the opportunity to get close enough to one of these saws to gain any solid knowledge. The chains, are they special? Like a skiptooth style or something like that to keep the chain speed up?

 

Yeah, the chains are spcefic built for hp/size and the chain speeds are around 200 mph and seem to be pretty secretive shit. The 250's moto are down on power compared to the Rotax/ sled motors but are more manageable to control. Public opinion is once past upper 370 cc. range the weight/vibration of a singal cylinder gets unmanageable. From experience based on the rpm's their claiming to obtain the port timing is north of 200°. The sled motors by desigmn have better port configuration/ dimenrions and power valves for improved mid range over the moto motors.

There is a guy recasting cr-250 cases without the gearbox for some Karting venues for $300 aprox. I'm surprised the hot saw builders haven't went that route for simplicity /weight.

 

Most high hp saws use the 11bc or 11H 3/4 pitch chain. You back cut the cutter tooth and some guys even assemble (every cutter & driver with looser rivets) their own.

 

Wait a minute. I didn't think you knew about saws.

 

Geerbanger- Arboristsite.com is a good place to poke around, there is even a few recognized pro builders on the site.

 

Thanks for the link. Lots on there about hotsaws. :supz:

 

Dennis Cahoon has a tutorial pics in sawbuilding 101 section under topic " 250 hot saw"

 

If you are running simple 250-500cc power then .404 pitch .080 gauge is fine.

 

sooooo yellowbullet hot saw meet in the near future ?

 

Monty have you guys cutting Dildos?

 

http://www.madsens1.com/saw_raceprep.htm

Sam Madsen is a very good friend of mine & I can get you in contact with him if wanted. I was on the cover of their catalog a few years back.