20
3.5 Engine speed can’t increase or unstable (choke is at the correct position)
3.6 Throttle control system test
1. Engine speed too high or too low
Check the air filter element for blockage
Clear the air filter element
No blocked
Blocked
Check the valve clearance
Readjust the valve clearance
Abnormal
Normal
Remove the spark plug and check the
electrode clearance for carbon deposit
Clear electrode, adjust clearance
or replace the spark plug
Abnormal
Check the carburetor and nozzle fo
blockage
Clean or replace
Blocked
No blockage
Normal
Check sealing of inlet line gasket and
carburetor heat insulation block
Tighten the nut, and/or replace
the gasket or heat insulation
block
Abnormal
Normal
Measure the cylinder compression
1. Check the valve clearance
2. Check the carbon deposit in
combustion chamber
3. Check the piston, piston ring
and cylinder for damage
Abnormal
Normal
Perform the throttle control system test
Check the AC output
Perform the generato
troubleshooting following the
instruction of “No or low AC output”
Abnormal
Normal
Check the throttle control motor
Replace the throttle control motor
Abnormal
Normal
Replace the inverter unit
© 2011 Kipor Power Systems, Inc.