Looking for links & information on the Margay Gearboxes. What date range where these boxes manufactured? Where there different models? If so, what were they & how would you ID them? How were they usually mounted & how does the engine & brakes mount up? Was there a certain model of kart developed for...

3rd bearing support.... Some believe that these are not needed because the stress on the crankshaft is out where the threads meet the taper. In these small engines with needle bearings on the PTO, I like to use them for extra support when using an outboard clutch. If you have an old 3rd bearing uni...

I seem to recall some form of an article on a Kart related Dyno located on the "Vintage Karting Archives" site. I did not read the article & can not comment upon the information provided. On another note... Is reference to, or direct links leading to, either the "VKA" site or other Kart related site...

Here is my Mc49C Runner. Finished her up today, ready for TBO!!! Decided on a single late VanTech and an HL250 Tilly. Its overbored as big as I could go and it has tons of compression.... That is a great looking resto! How much overbore is possible with these engines? Could you tell me more about t...

That's more like it! Thank you for the Tech Info. I will review those two links more thoroughly later this week. Could someone enlighten me further on the "#4 Bearing" recommendation & what exactly it means? Here is one of my previous posts that shows some of the options that I have for building an ...

Thank you for the replies... Does anyone else have anything to add? I'm mostly interested in learning the background behind this model, the R&D that led up to it & how it ranks, or fits as compared to the McCulloch engines both prior to & later. As far as modifications... I'm not looking for the hig...

Could someone please I.D. this Kart & the Engine? Any idea of the value?
If this is not the correct forum for this type of question. Would someone please direct me to a more suitable site?

Thank you.

Scott, I appreciate your offer. Thank you.

Please check your PM box. I believe there is a message there from me already.
Anyone have any advise on bent & damaged cooling fins?

Here are a few pics. It's a bit rough around the edges, but mostly complete.

Anyone know of any links to articles on the history & development of the Mc-49-C ?

Information on rebuilding & modifications is also very welcome.

Thanks.