Buell 2002 X1, Service Manual

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2002 Buell X1: Maintenance 1-37
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IGNITION TIMING 1.21
INSPECTION
Check ignition timing:
●
After each removal of the cam position sensor, set igni-
tion timing using the static timing method.
STATIC TIMING
1
CAUTION
Always wear proper eye protection when drilling. Flying
debris may result in minor or moderate injury.
1. See Figure 1-46. Locate outer timer cover (2) at bottom
of gearcase cover on right side of vehicle.
a. Drill off heads of outer timer cover rivets (1) using a
1/8 inch drill bit. Use a punch to tap rivet shafts
inboard through holes in outer timer cover. Remove
outer timer cover (2).
b. Remove two Phillips screws (3) to free inner timer
cover (4). If necessary, tap remaining rivet shafts
through holes in inner timer cover.
c. Carefully check the gearcase cover timer bore for
any rivet fragments.
2. Remove seat. See 2.40 SEAT.
3. Prepare vehicle for testing.
a. Remove the timing plug from the timing inspection
hole centered below the cylinders on the right side
of the crankcase.
b. Remove the spark plugs.
c. Jack up vehicle to allow rotation of the rear wheel.
d. Shift transmission into fifth gear.
NOTE
If valves are not visible through spark plug hole in Step 4a,
place finger over spark plug hole opening. The moment air is
no longer escaping through spark plug hole, the intake valve
has closed.
4. Bring engine to top dead center (TDC).
a. Standing on left side of vehicle, slowly rotate rear
wheel in a counter-clockwise direction until front
intake valve opens and closes (as viewed through
spark plug holes - see NOTE above).
b. See Figure 1-47. Rotate rear wheel until TDC mark
(2) is centered in timing inspection hole.
5. See Figure 1-48. Attach test components.
a. Remove electronic control module. See 4.29 ELEC-
TRONIC CONTROL MODULE . Unplug gray con-
nector [11].
b. Attach female gray connector on BREAKOUT BOX
(Part No. HD-42682) to electronic control module.
c. Attach male gray connector on BREAKOUT BOX to
wiring harness.
d. Connect red (+) lead on voltmeter to Pin 3 on gray
side of BREAKOUT BOX.
e. Connect black (-) lead on voltmeter to Pin 8 on gray
side of BREAKOUT BOX.
Figure 1-46. Timing Cover
Figure 1-47. Timing Marks
DDFI
1. Pop Rivet (2)
2. Outer Timer Cover
3. Screw (2)
4. Inner Cover
5. Screws (2)
6. Bolt
7. Cam Position Sensor
8. Cam Position Sensor Connector
1
3
4
5
2
6
7
8
b0637x7x
1. Timing Inspection Hole
2. Front Cylinder Top Dead Center (TDC)
b0626x1x
1
2