I have what I believe to be one -- left hand model. The 580's and 700's look the same and the tag is beyond reading. It's a little rough but has good compression so I am quite sure it will run fine. It would need to be fully gone over, cleaned, new carb kit (i have), but with some effort it should b...

The original 49M/C had a 3/4" pto shaft --it also had the larger BDC carb like the 91 and 101 model on a sloper manifold -- these engines were all three surplus from the Byrd mini bike company and were introduced into the karting ranks when Horstman acquired them from McCulloch after Byrd went out o...

The reed cage originated in the Hartman Reed Open manifold and did have the center rib cast in as Rob described so as to support a twin HL Tillotson carb setup -- the whole twin mac reed open setup also included a neat linkage arrangement so that one carb opened the other via a machined aluminum gea...

Are these the early ones that required an external fuel pump ?
Pictures ?

I'm trying to help a friend overseas who is trying to restore an old Dart.
Where can I locate some floorpan decals ?

It's been a while but if memory serves, it's an .039/.040" cross section

David, check your messages.
The one I have has the normal Mac tapered crank

Wally, give me a call.
423--698-0847
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"legend" is just a kind way of saying old..........
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http://www.kometengine.com

I think I can come up with something--I will check

So I guess the final conclusion must be that the boys on Century Blvd kinda made it up as they went along !! Maybe whatever sheet metal was on sale down at the mill got the call when it came time to make head covers !! At least all the 20's seem to be the 1/2" longer type not found on any other mode...