RE: MVVS proving impossible to start!
Euclid,
Please check the following:
Does your Walbro carburettor actually pump fuel from the tank (some Walbro carburettors came with stuck diaphragm valves, that must be cleaned to work right)?
Are you following the instructions as to exactly how to start the engine?
Is your engine's ignition sensor mounted properly?
Is all the HT and LT wiring connected properly?
After 20 flips, or so, that don't produce a start, the ignition stops working. It needs to be turned off and back on.
Pé can probably add a few things you can check.