Power Tech Generators PTRV-17.5K Operator's & Installation Manual page 52

ENGINE RUNS ROUGH OR SLOW
No Visible
Exhaust Smoke
Insufficient
Fuel to Engine
Check
Fuel Level Fuel Filter
Air in
Fuel System
Check Safety
Shutdowns
And Fuel Solenoid
Replace
Check
Fuel Pump
Excessive Exhaust Smoke
BLUE SMOKE BLACK SMOKE
Excessive Dirty Air Filter
Oil Level
Engine Overheated
Engine Overloaded
Excessive
Oil Consumption
Clogged Muffler
Over Fueling Injector
High Altitude
Glow Plug Circuit
Not Operating
GREY/WHITE SMOKE
Engine Cold
Incomplete
Combustion
Over Fueling
Injector