I recently became aware of a Chinese-made engine of which I had no previous knowledge. This was a T.Y.C. 2.5 cc diesel. It’s a fairly simple plain-bearing radially-ported design which appears to be rather similar to its Chinese Yin Yan/Silver Swallow contemporaries. All I know so far is that the T.Y.C. engines were reportedly manufactured in the early to mid 1980’s. Does anyone out there know more?!? If so, please respond!! All input gratefully acknowledged!
Dear Adrian, I have owned a Frog249BB engine since childhood. I recently discovered the exploded engine diagram and the 4 page manual with starting instructions. Are these of any use? In pdf form and easily emailable. David Brown Robertson NSW Australia
Sure thing, mate – all info is very useful. Please email it by all means.
Cheers,
Adrian