what make of engine is in it
plug specs are on a decal somewhere around the plug or in the operators manual
search -- operators manual for powermate generators -- as the engines will all run the same plug for that make of engine
understand that the advertised capacity is not the real capacity of a gen set
The 3.5 kv is max for a short time and that is in reality full load of around 2.8 kv full time rated load
Black smoke is over fueling and as you cannot mention if petrol or diesel then the problems can be very different
for petrol it is choke ,blocked air filter
if diesel it is bad injector, pump out of calibration or incorrect injection timing
Eighty watts is constant regardless of what voltage you pick. So get a eighty watt twelve volt motor. Satisfy the wireing requirements for whichever motor satisfies your heart. HP = torque x rpm / 5252. = 746 watts You do your own juggling with your known values. All you give is 80 W.
need more info---a name brand of generator with engine type and double check the model number---could not research any info as something missing somehow----I'm not trying to get smart but nothing seems to cross??
A kill switch wire works by stopping power to the switch by connecting to ground..usually the engine..but any unpainted surface will do..just make sure it is a clean contact and tight..good luck..