3.2 Hard starting
Install the spark plug and ground
the electrode. Check the spark.
Install a compression gauge in
the spark plug hole and check the
cylinder compression by pulling
the recoil starter rope several
times
Normal
Install the spark plug securely.
Restart the engine according to
the starting procedure.
Normal
com
compression
1. Check the valve clearance
2. Check for carbon deposits in the
combustion chamber.
3. Check for worn guides and seals.
4. Check for worn piston, piston ring
or cylinder.
No spark o
weak spark
Perform the ignition system
troubleshooting
Clean the electrode and restart,
Ensure the choke is not closed. I
flooding is severe, check the
carburetor float valve.
Wet
Check the fuel level in the tank.
Loosen the drain screw and
check whether fuel reached the
float chamber and the oil level.
Remove the spark plug and
check for wet or fouled electrode.
Dry
Check for blockage in the carbureto
intake port and nozzle.
Normal
Abnormal
Check the fuel lines for blockage.
Sufficient fuel
No fuel
dd fuel and restart the engine.
■ Cylinder compression check
1. Remove the spark plug cap and spark plug.
2. Install a compression gauge in the spark plug hole. Pull the recoil starter rope several times with force
and measure the cylinder compression.
Cylinder compression 80 psi/0.55Mpa
12
© 2011 Kipor Power Systems, Inc.