robgraham wrote:
I've been given an elderly (40-50 years) cultivator - 4 stroke Briggs
and Stratton single cylinder engine. Seems to be all OK and the
engine runs fine. However I believe I should be adding something to
the petrol to make it equivalent to that containing lead.

A local agricultural machinery company said this wasn't necessary, but
a decoke would be advisable.

What's the collective's opinion please ?


I'm with the local company.
A 50 year old briggs and stratton probably runs best on a mixture of
poteen and medical ether anyway. :-)

Decoke and regrind the valves, pour in something vaguely petroleum based
and it will run.




Thanks

Rob