Troubleshooting - Buell 2007 ULYSSES Service Manual

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TROUBLESHOOTING

GENERAL
The following check list can be helpful in locating most oper-
ating troubles. Refer to the appropriate sections in this Ser-
vice Manual for detailed procedures.
ENGINE
Starter Motor Does Not Operate or Does
Not Turn Engine Over
1. Engine stop switch in OFF position.
2. Ignition key switch not ON.
3. Discharged battery or loose or corroded connections.
(Solenoid chatters.)
4. Starter control relay or solenoid not functioning.
5. Electric starter shaft pinion gear not engaging or over-
running clutch slipping.
6. Clutch lever not pulled in. Vehicle in gear.
7. Starter interlock circuit malfunction.
Engine Turns Over But Does Not Start
NOTE
See 4.11 ENGINE CRANKS BUT WILL NOT START
cific tests.
1. Fuel tank empty.
2. Discharged battery, loose or broken battery terminal con-
nections.
3. Fouled spark plugs.
4. Loose or shorting spark plug cables or connections.
5. Ignition timing badly out of adjustment.
6. Loose wire connection at coil or battery connection or
plug between ignition sensor and module. See Section 4.
7. Ignition coil not functioning.
8. Ignition module not functioning.
9. Ignition sensor not functioning.
10. Sticking or damaged valve or valves.
11. Engine oil too heavy (winter operation).
12. Ignition circuit interlock malfunction.
13. No output from the ECM. See dealer.
14. Inadequate fuel pressure in fuel lines (possible leak).
See dealer.
15. Clogged fuel filter. See dealer.
16. Clogged fuel injectors. See dealer.
17. Tripped bank angle sensor. Turn key to OFF, wait 15 sec-
onds, and then back to IGN again to start bike.
18. TP Sensor/fast idle screw not set properly. See dealer.
19. No output from CMP sensor. See dealer.
20. Inoperative fuel pump. See dealer.
Starts Hard
1. Spark plugs in bad condition, have improper gap or are
partially fouled.
2. Wires are crossed.
3. ATC in stuck open.
4. Spark plug cables in bad condition and shorting.
5. Battery nearly discharged.
6. Loose wire connection at one of the battery terminals, at
coil or at plug between ignition sensor and module.
7. Throttle controls not adjusted correctly.
8. Ignition coil not functioning.
9. Engine oil too heavy (winter operation).
10. Ignition not timed properly. See dealer.
11. Vapor vent valve plugged or fuel line closed off restricting
fuel flow.
12. Water or dirt in fuel system.
13. Air leak at intake manifold.
14. Valves sticking.
15. TP Sensor and/or fast idle screw not set properly. See
dealer.
16. Oxygen, IAT or ET sensors damaged or malfunctioning.
See dealer.
Starts But Runs Irregularly or Misses
for spe-
See 4.15 MISFIRE
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition and shorting.
3. Spark plug gap too close or too wide.
4. Ignition coil not functioning.
5. Ignition module not functioning.
6. Ignition sensor not functioning.
7. Battery nearly discharged.
8. Damaged wire or loose connection at battery terminals
or coil.
9. Intermittent short circuit due to damaged wire insulation.
10. Water or dirt in fuel system and throttle body or filter.
11. Vapor vent valve plugged.
12. Throttle controls improperly adjusted.
13. Air leak at intake manifold or air filter.
14. Damaged intake or exhaust valve.
15. Weak or broken valve springs.
16. Incorrect valve timing.
17. Oxygen, IAT or ET sensors damaged or malfunctioning.
See dealer.
18. TP Sensor not set properly. See dealer.
19. Fuel level too low. Add gasoline.
20. Inoperative fuel injector. See dealer.
21. Obstructed fuel tank vent valve or pinched vent tube.
See dealer.
22. Air intake screen covered or restricted.
NOTE
for specific tests.
2007 Buell Uylsses: Maintenance
1.21
1-51