Hi SkyBurner.

May be you not only burn sky - but maybe also engines ??

As a vital point i should mention your fuel for this ST - 29.

In those days ST liked a fairly " fat " fuel - i could recommend : 5 % ricinus oil + 15 % ML 70 oil + 80 % methanol.
You might try : 5 % ricinus + 15 % ML 70 + 70 % methanol + 10 % notromethane.

But the first mix should run !

Also ST - engines liked a hot plug.

Kind regards,

hld - OY-9901.