Motorcycles - Page 2 - Recent Questions, Troubleshooting & Support


Hi, Anonymous, it should be noted that the reasons your check engine light or CEL stays on constantly or flashes and your bike will or will not start and may turnover or not, these conditions will vary from bike to bike depending on the year, make, and model and you should always refer to your owners/service manual for proper diagnostic procedures. It should also be noted that any type of prior work done to the bike or an abnormal event occurrence IE: adding accessories, electrical curiosity or adventures, laying the bike down or crashes, rainstorms or bike washings just before CEL light issues started can be significant hints or aids into tracking down the gremlin, also for 2003 and older models carry the appropriate jumper wire to access fault codes and reduce the risk of being stranded or towed also keep in mind that your CEL comes to life if anything, and I do mean anything isn't 100% with the ECM like parameter spikes. This means that you could be staring at a major repair, or your speedometer sensor is contaminated and needs to be cleaned.
And the usual suspects are:
1. Severely discharged or a damaged battery check the terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary, you should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
2. Faulty charging system.
3. Faulty system sensor some models have up to 40 sensors
4. Faulty safety switches: run/off, ignition, clutch lever, neutral, side stand, tip over, fuel, and or their connections.
5. The engine got wet where it didn't like to get wet.
6. Faulty ignition circuit spark plugs, coils, cables etc.
7. Broken wire or worn insulation exposing wire to a ground situation especially inside wire harness at tight bends around fairing brackets, under dash panels, under fuel tanks over cylinder heads etc. Many harnesses are open on the ends that will allow water to enter and accumulate at v-bends.
Dielectric grease and contact cleaner are your best friends for wire/cable/harness connectors, look for corroded, broken, or loose pins/sockets. Run speedometer diagnostics and check for generated fault codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/103016-02-sprint-st-engine-management-light.html
https://www.thetriumphforum.com/threads/engine-management-light.7844/
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2005 Triumph... | Answered 5 hours ago


Hi, Nigel for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/114734-chain-adjustment-2000-st.html
https://www.triumphrat.net/speed-triple-forum/511610-seized-chain-adjusted-best-plan-of-attack.html
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2000 Triumph... | Answered 6 hours ago


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
18. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.motorcyclecruiser.com/what-to-do-if-your-motorcycle-doesnt-start/
https://www.triumphrat.net/sprint-forum/177879-bike-wont-start-and-horn-problem-related.html
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2005 Triumph... | Answered 6 hours ago


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.thespeedtriple.com/forum/speed-triple-1050-05-10-11/6373-removing-fender.html
https://www.triumphrat.net/sprint-forum/199173-rear-hugger.html
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2005 Triumph... | Answered 6 hours ago


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/9230-adjust-ride-height.html
https://www.youtube.com/watch?v=AKZMbRUBzaQ
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2007 Triumph... | Answered 6 hours ago


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.thetriumphforum.com/threads/triumph-tiger-1050-2010-front-fork-seal-replacement.16406/
https://www.youtube.com/watch?v=zgZ8Kvfm2Rg
https://www.manualslib.com/manual/804154/Triumph-Speed-Triple.html#product-speed%20triple%201050
https://www.triumphestore.com/
https://www.manualslib.com/manual/889302/Triumph-Speed-Triple.html

2010 Triumph... | Answered 6 hours ago


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/94627-setting-the-sprint-digital-clock.html
https://www.youtube.com/watch?v=OxEeGcOzd1s
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2008 Triumph... | Answered 6 hours ago


Hi, Anonymous and the usual suspects are:
1. Throttle cables improperly adjusted.
2. Idle screw set too low.
3. Faulty air control valve.
4. Faulty stepper motor.
5. Faulty WAX unit.
6. Faulty MAP sensor.
7. Faulty ECU.
8. Clogged charcoal canister.
9. Fuel pressure too low.
10. Leaking intake rubber hoses between the throttle valve housing and cylinder head.
11. Throttle valves not correctly synced.
12. Throttle position sensor (TPS) not correctly adjusted.
13. Valve clearances are too tight.
14. Low compression.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/speed-triple-forum/836569-wont-idle-when-cold.html
https://www.bikechatforums.com/viewtopic.php?t=311982
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2002 Triumph... | Answered 6 hours ago


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
18. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/827889-sprint-st-2000-cranking-but-wont-start.html
https://www.motorcyclecruiser.com/what-to-do-if-your-motorcycle-doesnt-start/
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2001 Triumph... | Answered 6 hours ago


Hi, Robert and the usual suspects are:
1. Severely discharged or a damaged battery must have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
2. Faulty alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. A faulty main circuit breaker or ignition switch, check for loose connections and continuity.
5. Faulty system relay or ignition relay, check for continuity.
6. Faulty ignition coil, ignition/electronic module.
7. Faulty CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Fuel tank empty
11. Fuel tank contaminated with ethanol sludge.
12. Water or dirt in the fuel system, or clogged filter.
13. Quick disconnect check ball stuck.
14. Restricted, blocked or kinked fuel line.
15. Faulty fuel pump.
16. Faulty pressure regulator.
17. Faulty or clogged fuel injectors.
18. Lean angle switch is faulty or needs adjustment.
19. Catastrophic engine failure, perform a compression test.
For more information about your issue and valuable "FREE" downloads that you need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/88840-sprint-cutting-out.html
https://www.thetriumphforum.com/threads/sprint-cuts-out-on-closed-throttle.7947/
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2008 Triumph... | Answered 6 hours ago


Hi, Anonymous and the usual suspects are:
1. Blown instrument fuse.
2. Faulty sending unit.
3. Faulty wiring between the sending unit and gauge.
4. Faulty ground or power connection.
5. Bad fuel gauge.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/365434-sprint-st-1050-fuel-gauge-problem.html
https://www.youtube.com/watch?v=-c9euZEki4c
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2008 Triumph... | Answered 6 hours ago


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/sprint-forum/31031-removing-speedo-cluster-on-05-st.html
https://www.youtube.com/watch?v=BpFpSoP8g_8
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2007 Triumph... | Answered 6 hours ago


Hi, Anonymous and the usual suspects are:
1. Neutral light bulb burnt out.
2. Faulty neutral switch.
3. A loose bulb in the socket.
4. Faulty wiring from the neutral switch to the light.
5. If the neutral light stays on while the bike is in gear the wire from the light to the neutral switch is grounded.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/air-cooled-twins-technical-talk/74860-neutral-light-stays-on.html
https://www.youtube.com/watch?v=AAr6wsgogvc
https://www.manualslib.com/manual/1000394/Triumph-Sprint-St.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/1058609/Triumph-Sprint-St.html

2000 Triumph... | Answered 6 hours ago


Hi, Ctdrac4 and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. A faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Faulty run/off switch
11. Tilt sensor needs a reset.
12. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/daytona-deliberations/103626-no-spark-on-1995-daytona.html
http://triumph-trophy.10955.n7.nabble.com/Re-Ignition-Problem-pulse-coil-td25019.html
https://www.tradebit.com/filedetail.php/275348405-triumph-motorcycle-1992-1999-daytona-repair-service-manual $15
https://www.triumphestore.com/
https://www.triumphmotorcycles.com/offers-and-services/manuals

1995 Triumph... | Answered 6 hours ago


Hi, Paul_danisch you need "FIVE" things in order for a cylinder to run properly:
1. FUEL: in order to validate your not getting fuel spray some starting fluid into the air cleaner and hit the starter button, if it fires up and runs for a few seconds then you know you have a fuel delivery issue. Multi carb banks should be bench "SYNC"
2. SPARK: remove the spark plug and with it connected to the spark plug cable ground the threads to something metal you should see a bluish white spark if not you have a faulty spark plug, spark plug cable, ignition coil, condenser, CKP, ECM, sensor or the wiring in between.
3. COMPRESSION: you must have at least 80-100 PSI for most bikes, multi-cylinder engines should be within 10-15% of each other if not perform a leak down test you may have a burnt or bent valve or hole in the piston or broken rings.
4. CAM TIMING: confirm your timing marks are aligned to see if the cam chain or adjuster are worn out and the chain has skipped a couple of teeth.
5. IGNITION TIMING: on older bikes check to see if your points have not closed up, timing plate has not become loose and confirm with a timing light for proper retard and advance functions, on newer bikes where timing is controlled by an ECM and is nonadjustable check you CKP, TPS, MAP, O2, sensor or its counterpart for integrity.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/air-cooled-twins-technical-talk/398282-speedmaster-running-on-1-cylinder.html
https://www.triumphtalk.com/threads/one-cylinder-starting.35407/
https://www.tradebit.com/filedetail.php/253883093-triumph-america-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/538483/Triumph-America.html

2003 Triumph... | Answered 6 hours ago


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero $15 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?q=Ignition+control+unit+2006+Triumph+America&source=univ&tbm=shop&tbo=u&sa=X&ved=0ahUKEwi62-_Vk6_lAhWuuVkKHRHIAzkQsxgILw&biw=1440&bih=757
https://www.amazon.com/ProCom-Performance-Speedmaster-Bonneville-Scrambler/dp/B004QJSO9A
https://www.tradebit.com/filedetail.php/253883093-triumph-america-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/538483/Triumph-America.html

2006 Triumph... | Answered 6 hours ago


Hi, Sean for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere zero $15 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/air-cooled-cruisers-america-speedmaster/711122-06-america-first-oil-change.html
https://www.youtube.com/watch?v=07g3EGHkNTk
https://www.tradebit.com/filedetail.php/275662073-triumph-speedmaster-2001-2007-workshop-repair-service-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/538503/Triumph-Bonneville.html#product-Speedmaster

2006 Triumph... | Answered 7 hours ago


Hi, Rick and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. A faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Faulty run/off switch
11. Tilt sensor needs a reset.
12. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/air-cooled-cruisers-america-speedmaster/745026-no-spark.html
https://www.triumphtalk.com/threads/no-spark.45495/
https://www.tradebit.com/filedetail.php/275662073-triumph-speedmaster-2001-2007-workshop-repair-service-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/538503/Triumph-Bonneville.html#product-Speedmaster

2006 Triumph... | Answered 7 hours ago

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