Larger 6V engine?

Hi All,

Sorry for a question that has probably been asked hundreds of times.

What is the cheapest way to get a 110 or 125 engince for my 6V ST70. I don't mind a non honda engine, just want one to put in and see what it is like for a while?

Are there engines that will simply swap straight in for my 6V honda engine?

Cheers
Ben

Yes there are some older types.
These are the best Chinese engines:
Jingcheng engines without an electrostart. On these engines you can easily mount a 6v ignition system.
However, the best and fastest engine of this kind is the DX90.
(longer stroke, 47mm bore)
These however, will go as fast as a Chinese 125cc engine, and are far more reliable, and original looking.