B1. Engine cranks but won’t
start
1.0 Lanyard stop switch in
wrong position.
Reset lanyard stop switch.
1.1 Weak battery or bad starter
motor, battery voltage drops
below 8 volts while cranking
(ECM cuts out below 8volts)
(Fuel pump requires 9volts)
Replace/charge battery.
Inspect condition of starter motor.
Check condition of battery terminals
and cables.
1.2 No fuel Check that primer bulb is firm. Keyon
engine to verify that fuel pump
runs for 2 seconds and then turn off.
Measure fuel pressure
1.3 Flywheel misaligned during
installation
Remove flywheel and inspect.
1.4 Blown fuse Replace fuse. Inspect engine harness
and electrical components.
1.5 Main Power Relay not
functioning
Listen for relay to “click” when the
key switch is turned on.
1.6 Spark Plugs Remove spark plugs from each
cylinder.
Connect spark plug leads to Spark
Gap Tester 91-830230T.
Crank engine or use DDT output
load test for each ignition coil and
observe spark. If no spark is present,
replace appropriate ignition
coil. If spark is present, replace
spark plugsefore troubleshooting the ignition system, check the following:
1. Make sure that electrical harness and ignition switch are not the source of the problem.
2. Check that plug-in connectors are fully engaged and terminals are free of corrosion.
3. Make sure that wire connections are tight and free of corrosion.
4. Check all electrical components, that are grounded directly to engine, and all ground
wires to see that they are grounded to engine.
5. Check for disconnected wires and short and open circuits