Operations Manual
Table Of Contents
MAINTENANCE & TROUBLESHOOTING 
Maintenance 
Before fixing your equipment, make sure the engine is turned off and 
completely cooled down. 
Spark Plug: 
PROBLEM 
CAUSE 
SOLUTION 
No Spark 
Spark Plug 
1. Spark plug is wet
Dry Spark 
Plug 
2. Spark plug is dirty
Clean 
3. The insulation is damaged
Replace 
4. Spark gap is off
Adjust 
Ignition coil 
1. Wrap of wire damaged
Fix or Replace 
2. Insulation of coil bad
Replace 
3. The wire of coil broken
Replace 
Normal 
Spark 
Good Compression 
ratio 
1. Too much fuel in the cylinder
Drain 
2. Water or dirt in the fuel
Replace 
Poor Compression 
Ratio 
1. Cylinder and piston ring worn or
torn
Replace 
2. The plug is loose
Tighten 
Carburetor Not 
Fueling 
1. No fuel in the tank
Add Fuel 
2. Filter gauge is clogged
Clean 
3. Fuel tank has a hole
Clean 
Engine Lacks Power: 
PROBLEM 
CAUSE 
SOLUTION 
Good Compression 
Ratio 
1. Filter is clogged
Clean 
2. Air passes through the
connection of carburetor
Tighten 
3. Engine overheats
Stop Engine. Let Cool. 
4. Water in the fuel
Replace Fuel 
5. Dirt clogs the muffler
Clean 
Engine Overheats 
1. Gas is thin in fuel mix
Replace Fuel 
2. Cylinder is dirty
Clean 
3. Oil is bad
Replace Fuel with New 50:1 
Pre Mix Fuel 
4. No connection with hose
Adjust hose connection 
Engine is noisy or 
knocking 
1. Fuel bad Replace fuel
Replace Fuel 
2. Dirt in cylinder
Clean 
3. Parts are worn
Fix or Replace 
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