Starter Interlock - Buell X1 2002 Service Manual

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STARTER INTERLOCK

GENERAL
The starter interlock system is designed to prevent unin-
tended start-up and/or forward motion of the motorcycle with
the vehicle's side stand not retracted.
Two circuits make up the starter interlock system.
Starter Circuit
The starter circuit prevents the motorcycle from being started
unless a ground has been established at the starter relay.
This ground may come from one of two sources.
By placing the motorcycle in neutral and grounding
●
through the neutral switch.
By disengaging the clutch and grounding through the
●
clutch lever switch.
Once the starter circuit is grounded and the starter button
pushed, the starter relay can be energized. The energized
relay then permits the starter motor to crank the engine.
PROBLEM
Electric starter will not crank.
Electric starter cranks, but vehicle
will not start.
Motorcycle will not start with side
stand retracted.
Motorcycle will not start with side
stand retracted or clutch disengaged.
Motorcycle will not start after starter
relay tests.
7-8
Table 7-3. Starter Interlock Troubleshooting
CHECK FOR
Battery problems.
Inappropriate gear selected.
Clutch lever not disengaged.
Starter relay problems.
Side stand not retracted.
Clutch lever not disengaged.
Ignition relay problems.
No spark at spark plug.
Ignition Circuit
The ignition circuit prevents the motorcycle from operating
unless a ground is established at the ignition relay. If this
ground is not established, the ignition system will be not
turned on and the motorcycle will not run. Grounds may be
established three ways.
By retracting the side stand and grounding through the
●
side stand switch.
By placing the motorcycle in neutral and grounding
●
through the neutral switch.
By disengaging the clutch and grounding through the
●
clutch lever switch.
Note that the ignition circuit allows operation in gear with the
side stand extended if the clutch is disengaged. However, if
the motorcycle is in gear with the side stand extended, and
the clutch is released, the ignition ground is lost and the igni-
tion system is turned off. This system will prevent vehicle
operation if forward motion is attempted with the side stand
down.
See Figure 7-8.
CORRECTION
See 7.10 BATTERY.
Place vehicle in neutral.
Pull in clutch lever.
Listen for starter relay "click". If click is not heard,
perform starter relay tests.
Follow starter troubleshooting in Section 5.
Retract side stand.
Pull in clutch lever.
Listen for relay "click". If click is not heard, perform
ignition system tests.
Check for 12 VDC at coil W/BK wire.
Follow ignition system troubleshooting.
7.5
2002 Buell X1: Electrical