On 29 Aug 2019 19:30:47 GMT, Tim+ wrote:

snip


Old Seagull outboards used to run on 10:1.


My short shaft 'Forty Feather-weight' with recoil starter and long
range tank used to run on that very well.

I'm not sure the environment appreciated it though. ;-(

The little Yamaha 2hp 2/ runs on 50:1 I think (might be 25:1).

The Mariner 2.5hp just needs oil in the crankcase and bevel gear.

The Yamaha M12 runs on a mix of leads and acid and is much better for
the environment (at point_of_use specifically) *and* my Tinnitus. ;-)

Cheers, T i m