Vintage Chainsaw Collectors Lounge

[s sidewall]

Ahhh, caught you red handed.

Steve

 

[s sidewall]

How's the little one doing, Good I hope. Lost any sleep yet? Once she gets in a routine, it's gets better.

Steve

 

[Kensie1988]

Definitely lost a lot of sleep already lol

How's the little one doing, Good I hope. Lost any sleep yet? Once she gets in a routine, it's gets better.

Steve

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[Kensie1988]

Here she is

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[Huskybill]

There so cute.

Enjoy it now while it’s mustard. You’ll never look a jar of mustard in the eye again. Then god puts the stink in it. Lmao. Been there three times.

 

[V3_288xp]

Mr Oregon moon, keep me and fellers on site up to date on the saws please.. I live right next to ya kinda.. Washington that is. I love the old MACs and Homies.

I'll do my best!
Need a few carb kits for sure, do I'm lookin' about.
Wanna get those 10-10s going first.....

 

[Deleted member 149229]

Any body ever run one of these? A 3 cylinder rotary engine in a Saw seems wild.

 

[s sidewall]

Nope, but driven a few RX7's though.

Steve

 

[Deleted member 149229]

Nope, but driven a few RX7's though.

Steve

Was curious how much torque a rotary engine would have in a saw.

 

[s sidewall]

Well, not much down low, starts kicking in and half throttle til WOT. A rotary engine will rev to the moon but, put off a lot of heat. Companies got into the rotary rage building motorcycles, saws and a few more things, but were not to fuel efficient and polluted a lot. Mazda is supposed to be bringing it back, better technology has came along way. I love them, easy to build and simple, like a piston 2 stroke. Both work on the same principle, every compression is power.

Steve

 

[s sidewall]

Oh, did I not mention, 4 rotors mean more Power. Check out the rotary powered, green race car on YouTube, 787B, one bad car and awesome sound.

Steve

 

[Huskybill]

Suzuki had a rotary engine powered motorcycle. I believe this was a time the two and three cylinder two stroke bikes were offered. I recently sold a Yamaha rz500 4v. King Kenny.

 

[Deleted member 149229]

Suzuki had a rotary engine powered motorcycle. I believe this was a time the two and three cylinder two stroke bikes were offered. I recently sold a Yamaha rz500 4v. King Kenny.

You are correct on the Suzuki rotary. I rode one back in the mid to late 70’s, that thing would really hug the turns.

 

[95custmz]

Suzuki had a rotary engine powered motorcycle. I believe this was a time the two and three cylinder two stroke bikes were offered. I recently sold a Yamaha rz500 4v. King Kenny.

That thang sounds mean!


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[Huskybill]

King Kenny went to Europe and kicked butt on the early 500 four cylinder two stroke. He’s in one of the on Sunday videos.


http://www.motorcyclemuseum.org/halloffame/detail.aspx?RacerID=88

 

[heimannm]

The KMS4 as a single rotor, but it does sound rather like a three cylinder since you have basically three fires for every revolution of the rotor. They do produce a lot of heat, mine will run about 3-4 minutes before the ignition overheats and it quits. Wait 20 minutes or so and do it all again.



Does anyone recognize that ignition?



The "flywheel" is basically just a fan, the rotor provides all the inertia needed to keep it spinning and smooth out the power "strokes".

Mark

 

[Deleted member 149229]

The KMS4 as a single rotor, but it does sound rather like a three cylinder since you have basically three fires for every revolution of the rotor. They do produce a lot of heat, mine will run about 3-4 minutes before the ignition overheats and it quits. Wait 20 minutes or so and do it all again.

View attachment 666870

Does anyone recognize that ignition?

View attachment 666871

The "flywheel" is basically just a fan, the rotor provides all the inertia needed to keep it spinning and smooth out the power "strokes".

Mark

Thanks. Any video of it running?

 

[s sidewall]

Wonder why the saw used one spark plug. Most rotary engines run two to three plugs per rotor.

Steve

 

[heimannm]

No videos, I am not that advanced technologically...

Two or three plugs per cylinder are O.K. if you are lugging your powerplant around on wheels, even better if you are flying through the air. For poor old saps who must carry them by hand, one coil & spark plug save a few ounces and a few Deutsch marks.

Mark

 

[s sidewall]

If they had used a duel fire coil, don't believe weight would have went up much.

Steve