Glued Flywheels on an old Style Crankshaft

Hallo to all.
My new 48cc Noname is apart. I bought a couple of bearings to replace them with better ones. And finally I wanted to balance the crankshaft and true it if necessary.

Now here's my problem:
the flywheels are melted, glued, resined with the main body of the crankshaft. Is it that often? It's a really hard mass around. The 6 screws are also available as usual. How do you remove this mess to get the flywheels off? I didn't find anything about that in the forum. Can somebody please give some tips?

I would not ask if the crank would be balanced properly. But it isn't. I've determined the balance factor. It is rather precise -2% for bad vibrations.

Thank you - Multipaul

Thank you, Bikeguy Joe and VMB for your fast answers. Now I know what to do.

If there is interrest, I can explain the correct process of balancing here. But I'm afraid that will be boring. On the other side, there a threads where it is explained step by step.
Here and there with some smaller errors. But all in all that brought improvements.

Fact is that you can bore anywhere around the cranc pin and the balance factor will become better so that the engine will run smoother. In the case of my engine I wrote that the balance factor is -2% from factory. That would be okay for engines with horizontal cylinders and strong bearings. But not for our HTs.

The 6202 bearings are not the strongest ones. So I will try to achieve 58% which is the best value for the main bearings because the forces will reach their minimum. But that will take some time.

Again thank you!

Multipaul

Dan said:

... (with pictures for us slow guys, lol)

Click to expand...

Oh Dan, that was hard (lol). That's a little bit my problem. I don't want to be your smartass from Germany. People are so different. But every person has his value.

I'm still learning every day. Sometimes I am wrong, which I admit (in most cases). I love the details and know that this is boring for many people. So please be lenient with me.

It's a part of my character that I do not promise to do something and then don't do it. Even if it lasts some time.

Multipaul