Ignition System; Engine Is Hard To Start - Honda BF135A Manual

BF135A•BF150A
d. IGNITION SYSTEM

• ENGINE IS HARD TO START

* Before troubleshooting, turn the ignition switch ON and check whether the MIL comes ON for 2 seconds and the warn-
ing buzzer sounds twice intermittently.
If the MIL does not come ON or the warning buzzer does not sound, perform power system troubleshooting (P. 2-20).
Check the No. 6 (15A) fuse.
Is the fuse normal?
YES
Check whether the emergency stop switch
clip is disconnected.
Is the clip set securely?
YES
Measure the spark plug gap.
Standard plug gap: 1.0 – 1.1 mm
Service limit: 1.3 mm
Is the spark plug gap within the service
limit?
YES
Clean the spark plugs and install them.
Start the engine according to the starting
procedure.
Does the engine start?
NO
Install the new spark plugs and restart.
Does the engine start?
NO
Check the emergency stop switch.
Is the emergency stop switch normal?
YES
Check for short in the black/red wire of the
emergency stop switch.
Is there continuity between the harness
side black/red terminal and the black ter-
minal?
NO
To P. 2-26
NO
NO
NO
YES
YES
NO
YES
• Check for short in the wire harness of the
No. 6 (10A) fuse load line. Replace or repair
the wire harness as necessary.
• Replace the No. 6 (15A) fuse.
Set the clip securely.
Replace the spark plugs.
Wet fouled spark plugs.
Replace the spark plugs.
Replace the emergency stop switch.
Replace or repair the wire harness.
2-25