150
Tips
Troubleshooting
POOR HANDLING
Steering is heavy
• Steering stem adjusting nut too tight*
• Damaged steering head bearings
• Faulty HPSD*
Either wheel is wobbling
• Excessive wheel bearing play
• Bent rim
• Improperly installed wheel hub
• Excessively worn swingarm pivot bearings
• Bent frame
The motorcycle pulls to one side
• Front and rear wheels not aligned
• Bent fork
• Bent swingarm
• Bent axle shaft
• Bent frame
POOR PERFORMANCE AT LOW AND IDLE SPEED
CHECK
POSSIBLE CAUSES
1. Check the spark
plug condition
(P.71)
• Incorrect spark plug heat
range
• Incorrect spark plug gap
• Plug not serviced
frequently enough
2. Check the ignition
timing*
• Faulty ECM*
• Faulty CKP sensor*
3. Check the PGM-FI
system (P.11)
• Faulty PGM-FI system
(P.13)
4. Check the fuel
pump operation
and inspect the fuel
flow*
• Faulty fuel pump unit*
• Clogged fuel pump filter
(P.48)
5. Check the insulator
for leaks
• Loose insulator
• Damaged insulator
6. Try spark test*
• Faulty, carbon or wet
fouled spark plug (P.71)
• Faulty ECM*
• Faulty alternator*
• Faulty ignition coil*
• Broken or shorted spark
plug wire
• Faulty CKP sensor*
• Loose or disconnected
ignition system wires
• Faulty engine stop
button*
• Faulty regulator/rectifier*
• Faulty condenser*
CORRECT
INCORRECT
CORRECT
INCORRECT
CORRECT
INCORRECT
CORRECT
INCORRECT
CORRECT
INCORRECT
WEAK OR
INTERMITTENT
SPARK
POOR PERFORMANCE AT HIGH SPEED
CHECK
POSSIBLE CAUSES
1. Check the ignition
timing*
• Faulty ECM*
• Faulty CKP sensor*
2. Remove the air
cleaner (P.60)
• Not cleaned frequently
enough
3. Check the PGM-FI
system (P.11)
• Faulty PGM-FI system
(P.13)
4. Check the fuel
pump operation and
inspect the fuel flow*
• Faulty fuel pump unit*
• Clogged fuel pump filter
(P.48)
5. Check the valve
timing
• Camshaft not installed
properly (P.77)
6. Try spark test*
• Faulty, carbon or wet
fouled spark plug (P.71)
• Faulty ECM*
• Faulty alternator*
• Faulty ignition coil*
• Broken or shorted spark
plug wire
• Faulty CKP sensor*
• Loose or disconnected
ignition system wires
• Faulty engine stop
button*
• Faulty regulator/rectifier*
• Faulty condenser*
7. Check the valve
springs*
• Faulty valve springs*
8. Remove the
camshaft and
inspect the cam
lobe height*
• Faulty camshaft*
CORRECT
INCORRECT
AIR CLEANER
NOT DIRTY
DIRTY
CORRECT
INCORRECT
CORRECT
INCORRECT
CORRECT
INCORRECT
GOOD SPARK
WEAK OR
INTERMITTENT
SPARK
GOOD
WEAR
CORRECT
WORN
CRF450R.book Page 150 Thursday, July 8, 2010 9:34 AM
Summary of Contents for CRF450R 2011
Page 1: ...CRF450R ...
Page 9: ...CRF450R book Page 8 Thursday July 8 2010 9 34 AM ...
Page 17: ...8 Motorcycle Safety CRF450R book Page 8 Thursday July 8 2010 9 34 AM ...
Page 23: ...14 Instruments Controls CRF450R book Page 14 Thursday July 8 2010 9 34 AM ...
Page 27: ...18 Before Riding CRF450R book Page 18 Thursday July 8 2010 9 34 AM ...
Page 33: ...24 Basic Operating Instructions CRF450R book Page 24 Thursday July 8 2010 9 34 AM ...
Page 172: ...Technical Information 163 CRF450R book Page 163 Thursday July 8 2010 9 34 AM ...
Page 177: ...168 Memo CRF450R book Page 168 Thursday July 8 2010 9 34 AM ...
Page 185: ...CRF450R book Page 8 Thursday July 8 2010 11 47 AM ...
Page 193: ...8 La sécurité à moto CRF450R book Page 8 Thursday July 8 2010 11 47 AM ...
Page 199: ...14 Instruments et commandes CRF450R book Page 14 Thursday July 8 2010 11 47 AM ...
Page 203: ...18 Avant de piloter CRF450R book Page 18 Thursday July 8 2010 11 47 AM ...
Page 209: ...24 Instructions d utilisation de base CRF450R book Page 24 Thursday July 8 2010 11 47 AM ...
Page 348: ...Informations techniques 163 CRF450R book Page 163 Thursday July 8 2010 11 47 AM ...
Page 353: ...168 Notes CRF450R book Page 168 Thursday July 8 2010 11 47 AM ...
Page 361: ...CRF450R book Page 8 Thursday July 8 2010 3 20 PM ...
Page 369: ...8 Motorrad Sicherheit CRF450R book Page 8 Thursday July 8 2010 3 20 PM ...
Page 375: ...14 Instrumente und Bedienungselemente CRF450R book Page 14 Thursday July 8 2010 3 20 PM ...
Page 379: ...18 Vor dem Fahren CRF450R book Page 18 Thursday July 8 2010 3 20 PM ...
Page 385: ...24 Grundlegender Betrieb CRF450R book Page 24 Thursday July 8 2010 3 20 PM ...
Page 524: ...Technische Informationen 163 CRF450R book Page 163 Thursday July 8 2010 3 20 PM ...
Page 529: ...168 Notizen CRF450R book Page 168 Thursday July 8 2010 3 20 PM ...
Page 537: ...CRF450R book Page 8 Friday July 9 2010 6 15 PM ...
Page 545: ...8 Veiligheid bij motorfietsen CRF450R book Page 8 Friday July 9 2010 6 15 PM ...
Page 551: ...14 Instrumenten en bediening CRF450R book Page 14 Friday July 9 2010 6 15 PM ...
Page 555: ...18 Voordat u gaat rijden CRF450R book Page 18 Friday July 9 2010 6 15 PM ...
Page 561: ...24 Voornaamste bedieningsinstructies CRF450R book Page 24 Friday July 9 2010 6 15 PM ...
Page 700: ...Technische informatie 163 CRF450R book Page 163 Friday July 9 2010 6 15 PM ...
Page 705: ...168 Memo CRF450R book Page 168 Friday July 9 2010 6 15 PM ...
Page 713: ...CRF450R book Page 8 Thursday July 8 2010 9 15 PM ...
Page 721: ...8 Seguridad de la motocicleta CRF450R book Page 8 Thursday July 8 2010 9 15 PM ...
Page 727: ...14 Instrumentos y controles CRF450R book Page 14 Thursday July 8 2010 9 15 PM ...
Page 731: ...18 Antes de circular CRF450R book Page 18 Thursday July 8 2010 9 15 PM ...
Page 737: ...24 Instrucciones básicas para la operación CRF450R book Page 24 Thursday July 8 2010 9 15 PM ...
Page 876: ...Información técnica 163 CRF450R book Page 163 Thursday July 8 2010 9 15 PM ...
Page 881: ...168 Notas CRF450R book Page 168 Thursday July 8 2010 9 15 PM ...
Page 889: ...CRF450R_IT book Page 8 Wednesday July 14 2010 10 47 AM ...
Page 897: ...8 Sicurezza della motocicletta CRF450R_IT book Page 8 Wednesday July 14 2010 10 47 AM ...
Page 903: ...14 Strumentazione e comandi CRF450R_IT book Page 14 Wednesday July 14 2010 10 47 AM ...
Page 907: ...18 Prima di mettersi alla guida CRF450R_IT book Page 18 Wednesday July 14 2010 10 47 AM ...
Page 913: ...24 Istruzioni operative fondamentali CRF450R_IT book Page 24 Wednesday July 14 2010 10 47 AM ...
Page 1052: ...Informazioni tecniche 163 CRF450R_IT book Page 163 Wednesday July 14 2010 10 47 AM ...
Page 1057: ...168 Promemoria CRF450R_IT book Page 168 Wednesday July 14 2010 10 47 AM ...
Page 1058: ...1500 2010 03 B Printed in China 3RMEN640 00X3R MEN 6400 BLACK PANTONE 186C ...