Model or full size injected or fuel mixture thru a side port if the only source of ignition is compression by definition it is a diesel regardless of the fuel. Glow engines have some times been refered to as semi-diesels this is really incorrect since although the power
is removed from the plug after starting and no external source of ignition the element stays glowing from catalytic action of methanol
on the element if the plug burns out the engine ceases to run hence compression does not keep the engine running, There have been
instances of a glow engine if hot enough and high compression will fire without power to the glow plug at that point it is a diesel at least
for the moment it fires martin