OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Tecumseh / Kirby Engines Tecumseh motor identification

Hi All
I have a Tecumseh motor on an outboard leg that needs a carby
I need to identify the motor first of course . It has a small tag with the following on it as the only ID i can find .
T-643-12 and another number which is 6074116.
This motor seems to have been put on what i think is an Asko leg and the only other ID i can find seems to be the name seamaster. I have been told that the motor is from a lawnmower lineage and was assembled on the outboard leg in Australia ??
Can anyone assist

I've seen this question asked here previously, and I don't recall that anyone had a clear answer. If the motor is a 2-stroke Tecumseh there is a good chance it uses the same carburetor as their 2-stroke lawnmower engine - especially if it was a local job of just fitting bought-in parts together in a small factory. I have the impression that 2-stroke Tecumseh engines are fairly uncommon here in Australia, though not unheard of. You may find someone ready to wreck one that has problems with parts other than the carburetor.

Thanks .I guess that i should take the unit to a mower shop here who may have the old parts needed
Thanks again

As far as i can find out the tecumseh 643-12 engine had a tillotson float type carby with a tecumseh part No 631551.i am
sorry but i have no way to cross reference to the tillotson part
number.