Hi,
I'm running a OS 46LA, in a Extra 300L, and the engine is inverted. But when ever I roll inverted the engine splutters and dies[:@].
This doesn't make sense to me, as the engine would then be running right way up.
I'm getting some new plugs

, but any other ideas???
Also, I'm having trouble starting it consistly[

], any tips for inverted engines starting???
John Murray