Does anyone know what the approximate horsepower rating is for an Mc49? I am just curious. I remember the old factory stock standard 100cc engines like Mc7-9 were about 10 horse, about 1HP/lb. But I have never seen anything on the 80cc Mc49. I have one to restore and want to set it up for my grandso...

Hi Randy, I just took a look at the sectioning you did on the steering wheel. Nice job, you do impressive work!! Question: What do you plan for the rubber part? The reason I ask is that my R1 wheel had good metal but the rubber had big chunks out of it. I used black urethane epoxie to build up the m...

Excellent Article,
I always wondered about the tool steel vs chrome rings and I never thought about the rings being out of round? I have had good luck with the Hartman super sealer rings though, it makes sense. I will use this method from here on out.
Thank you Jeff

Wow,
I guess the 3 stone glaze breaker I have used for years is no good!!

Its kind of funny, the McCulloch engine manual says to rough up the bore with some emery cloth!!
I guess you can go just about as far as you want with this stuff so do what you need to.
Good luck Randy

Randy, If the bore is nice and round, why not just a few passes with a glaze breaker?? Flex hone is probably better but you don't want it too smooth either to make sure you get a good ring seat. As long as the bore is round and straight, I always just use my trusty small engine glaze breaker I got f...

Hi, I just finished the re-biuld of my first Mc101A. This is my first 101, I have built several mac's both standard and super and after finishing it and bolting on a GEM starter cup, I realized that it does not stick out far enough from the flywheel cover to get the starter belt on. So here is my qu...

Hi,

I am looking for a decalfor my Mc45 and one for my Mc101A.

I have seen them sold on eBay by Zoe as well as another guy who was making repops. Neither of them have anything listed right now.

Any ideas of where I can get them?

Thanks,

Scott

Can someone explain the 5 degree flywheel for me and also how to identify? I would appreciate it because I can't tell the difference in the flywheel on my Mc45 to the one on my Mc7 and they are supposed to be different. Any help would be appreciated, I am trying to learn as much as I can about these...