Motorcycles - Page 4 - Recent Questions, Troubleshooting & Support


Hi, Anonymous and the usual suspects are:
1. Improper clutch adjustment or not disengaging.
2. Bent shift shaft.
3. Shift fork bent or seized.
4. Gear seized on the shaft.
5. Gear positioning lever binding.
6. Shift return springs weak or broken.
7. Shift return spring pin loose
8. Shift mechanism arm spring is broken.
9. Shift mechanism arm is broken.
10. Shift drum is broken.
11. Shift lever loose on the shift shaft.
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/water-cooled-twins-talk/901562-wont-shift-2.html
https://www.youtube.com/watch?v=8IVwjTk1NWE
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2005 Triumph... | Answered Yesterday


Hi, Paulo I would start with a proper tune up, 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 Suzuki, despair not, for a mere zero $0 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.amazon.com/Kawasaki-Tune-VN800-95-06-Vulcan/dp/B00NFRZXMA
Kawasaki Vulcan 800 Spark Plug Replacement Tank Removal
Kawasaki vn 800 classic Service Manual
OEM Parts for Kawasaki
Kawasaki VN800 Owner Manual

2002 kawasaki VN... | Answered Yesterday


Hi, Bonsaicampbe 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.vulcanforums.com/forums/56-vulcan-800/42522-how-install-tachometer.html
https://www.youtube.com/watch?v=JwNXARQKYAg
KAWASAKI VN900 CLASSIC Service Manual
OEM Parts for Kawasaki
2007 Kawasaki Vulcan 900 Classic Owner Manual

2007 kawasaki... | Answered Yesterday


Hi, Anonymous if your headlight is not working, intermittent, only one beam works, keeps burning out, blinking, dim or surges from bright to dim to bright the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, then check your headlight bulb socket ground wire for a clean tight connection, that being said the usual suspects are:
1. Faulty ground or power supply wire to the headlight bulb socket.
2. Worn down solder contacts or loose fit of the bulb base in the socket due to vibration.
3. Worn, chafed, or broken wires in the light circuit.
4. Corroded, broken, or loose pins/sockets in wire connectors.
5. Faulty hi/low beam switch.
6. Faulty ignition switch.
7. Fuse is good but no continuity on both sides.
8. Faulty headlight relay.
9. Faulty wiring between battery positive and headlight bulb socket.
10. Weak charging alternator/generator/lighting coil
11. Faulty voltage regulator/rectifier ground or overcharging.
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.zxforums.com/forums/zx-7r-forum/106457-no-headlights-high-low-everything-else-works-searched.html
Predator ZX10r Fixed headlights relay junction box fried DIY Bypass...
https://www.slideshare.net/jksme45mmd/2005-kawasaki-zx1000c2-ninja-zx10r-service-repair-manual
OEM Parts for Kawasaki
2004 Kawasaki Ninja ZX 10R Owner Manual

2007 kawasaki... | Answered Yesterday


Hi, Anonymous and the usual suspects are:
1. Severely drained or faulty battery.
2. Faulty regulator/rectifier or high output coil.
3. Clogged air filter or exhaust.
5. Cracked or incorrect float level.
6. Float needle is not seating.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
http://www.britbike.com/forums/ubbthreads.php?ubb=showflat&Number=499388&page=all
https://www.triumphrat.net/classic-vintage-and-veteran/208404-t140v-misfiring-at-5-000-rpm.html
http://www.classicbike.biz/Triumph/Repair/1970s/73-78-Triumph-Bonneville-Tiger-Workshop-Manual.pdf
https://partsbooks.britishonly.com/partsbooks/20-10202C.pdf
http://www.classicbike.biz/Triumph/OwnersManuals/1970s/1978-Bonneville-750-T140E-Owners-Handbook.pdf

Triumph... | Answered Yesterday


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.manualslib.com/manual/538488/Triumph-America.html?page=80
https://www.youtube.com/watch?v=2ZQ0qvNhyMI
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2008 Triumph... | Answered Yesterday


Hi, Anonymous and the usual suspects are:
1. 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.
2. Failed 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 failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed 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. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen the gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from the intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
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/154191-help-keeps-cutting-out.html
https://www.triumphtalk.com/threads/bike-shut-off-twice-in-two-days.26025/
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2007 Triumph... | Answered Yesterday


Hi, Anonymous and the usual suspects are:
1. 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.
2. Failed 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 failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed 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. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen the gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from the intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
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/139801-engine-stalls-or-dies-suddenly-help-please.html
http://www.britbike.com/forums/ubbthreads.php?ubb=showflat&Number=278352
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2007 Triumph... | Answered Yesterday


Hi, Jason 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 $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=Wiring+harness+routing+2001+Triumph+Triumph+Bonneville&tbm=isch&source=univ&sa=X&ved=2ahUKEwjH9qeQ16LlAhXLuFkKHfnIBWEQsAR6BAgHEAE&biw=1440&bih=757
https://www.youtube.com/watch?v=e2GpxQX64xw
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2001 Triumph... | Answered Yesterday


Hi, Mike before testing any electrical component in the Charging System it is "IMPERATIVE" that you have a fully charged battery of 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 type batteries fall into this scenario more so than lead-acid batteries.
1. 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.
2. To check the regulator unplug it from the stator. Take a test light and clip it to the negative terminal of the battery and then touch first one pin and then the other on the plug that goes to the regulator. If you get even the slightest amount of light from the test light the regulator is toast.
To do this with a meter: black lead to battery ground, red lead to each pin on the plug, start with the voltage scale higher than 12vdc and move voltage scale down in steps for each pin. Any voltage is a bad regulator.
3. On the other part of the disconnected regulator plug. Set the multimeter for Ohms x1 scale and measure for resistance across the pins of the stator. You should read something around 0.1 to 0.2 ohms for a 32 amp system.
4. Then check for continuity between each pin on the plug and frame/engine ground. The meter needle should not move (infinite resistance)(digitals will show infinite resistance) if the meter needle does move (indicating continuity)(digitals will show some resistance), recheck very carefully. If the meter still shows continuity to ground the stator is shorted (bad).
5. Set the meter to read A/C volts higher than 30 volts (the scale setting for voltage should always be higher than the highest voltage you expect or you may fry the meter). Start the bike, and measure from one pin to the other on the plug (DO NOT cross the multimeter probes! - touch them to each other). You should read roughly 16-20 vac per 1,000 rpm.
6. If the battery was good under load test, if the stator is NOT shorted to ground, and the stator is putting out A/C voltage, then the regulator is bad (most likely even if passed step 2)
For more information about your question 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/classic-vintage-and-veteran/199900-battery-not-charging.html
https://www.youtube.com/watch?v=RiYmHiP2C98
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

Triumph... | Answered Yesterday


Hi, Bruce and the usual suspects are:
1. 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.
2. 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.
3. Faulty main circuit breaker and or connections.
4. Faulty ignition coil and or connections.
5. Faulty spark plug, oil or gas fouled, wrong heat range or service type, wrong gap, loose in the cylinder head, broken electrode or insulator.
6. Faulty spark plug cables, leaking or broken, internal damage check for spark leakage in the dark.
7. Faulty ignition module, switch, CKP, MAP, CMP, sensor and or any connector in the ignition circuit could have corroded, loose, or broken pins/sockets
8. Burnt exhaust valve or air leak in the exhaust system.
9. Improper valve clearance (too tight).
10. Check for generated diagnostic 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/air-cooled-twins-technical-talk/226325-bonneville-backfiring.html
https://www.bertsmegamall.com/--Why-is-my-motorcycle-backfiring
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2007 Triumph... | Answered Yesterday


Hi, Anonymous and the usual suspects are:
1. Severely drained or faulty battery.
2. Faulty regulator/rectifier or high output coil.
3. Clogged air filter or exhaust.
5. Cracked or incorrect float level.
6. Float needle is not seating.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
https://www.triumphrat.net/classic-vintage-and-veteran/855698-new-build-wont-rev-out.html
https://www.youtube.com/watch?v=Tx9fb1Ytz8k
https://www.tradebit.com/filedetail.php/281132494-triumph-t100-t90-5ta-3ta-1963-1974-factory $15
https://partsbooks.britishonly.com/partsbooks/20-10200C.pdf
http://mybikemanuals.com/triumph/

2001 Triumph... | Answered Yesterday


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 $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-twins-technical-talk/188468-bonneville-air-filter-where-is-it-how-is-it-changed.html
https://www.youtube.com/watch?v=l-kEotjWIhk
https://www.tradebit.com/filedetail.php/253883097-triumph-bonneville-2001-2007-workshop-service-repair-manual $15
https://www.triumphestore.com/
https://www.manualslib.com/manual/1359522/Triumph-Bonneville.html

2008 Triumph... | Answered Yesterday


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 $0 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/water-cooled-twins-technical-talk/797849-t120-tank-removal.html
https://www.youtube.com/watch?v=zqboFTT1HNo
https://www.manualslib.com/manual/832400/Triumph-Bonneville-T120.html#product-Bonneville%20T120
https://www.triumphestore.com/
https://www.manualslib.com/manual/1147937/Triumph-T120.html

Triumph... | Answered Yesterday


Hi, Jpjones2000 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 $0 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=Wiring+diagram+2009+Triumph+America&tbm=isch&source=univ&sa=X&ved=2ahUKEwjklfnpxqLlAhUIo1kKHYH7BY0QsAR6BAgFEAE&biw=1440&bih=757
https://www.triumphrat.net/air-cooled-twins-technical-talk/834505-need-wiring-diagram.html
https://www.manualslib.com/manual/461452/Triumph-Bonneville-750.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/538488/Triumph-America.html

2009 Triumph... | Answered Yesterday


Hi, Bsa65048 and the usual suspects are:
1. 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.
2. Failed 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 failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed 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. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen the gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from the intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
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/522145-06-america-cutting-out-when-warm.html
https://www.triumphtalk.com/threads/bike-shut-off-twice-in-two-days.26025/
https://www.manualslib.com/manual/461452/Triumph-Bonneville-750.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/538488/Triumph-America.html

2004 Triumph... | Answered Yesterday


Hi, Moletrap 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/air-cooled-twins-technical-talk/74729-bonneville-america-wont-start.html
https://www.motorcyclecruiser.com/what-to-do-if-your-motorcycle-doesnt-start/
https://www.manualslib.com/manual/461452/Triumph-Bonneville-750.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/538488/Triumph-America.html

2008 Triumph... | Answered Yesterday


Hi, N2524x the vast majority of service, parts fiche, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee of $15 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available and some were never printed in English. The Indian and Philippine markets are usually in E-book format only, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. If there is no $ sign after the manual link it is free to download.
To download your manual for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.manualslib.com/manual/461452/Triumph-Bonneville-750.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/538488/Triumph-America.html
https://bikez.com/motorcycles/triumph_america_2004.php
https://en.wikipedia.org/wiki/Triumph_Bonneville_America

2004 Triumph... | Answered Yesterday


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 $0 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/187246-removal-of-the-seat-and-getting-to-the-battery-on-11-speedmaster.html
https://www.google.com/search?q=Rear+seat+removal+2008+Triumph+America&tbm=isch&source=univ&sa=X&ved=2ahUKEwiTmf3vw6LlAhVFmVkKHR_cBakQsAR6BAgFEAE&biw=1440&bih=757
https://www.manualslib.com/manual/461452/Triumph-Bonneville-750.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/538488/Triumph-America.html

2008 Triumph... | Answered Yesterday


Hi, Anonymous and the usual suspects are:
1. 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.
2. 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.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor contaminated, sticky float, plugged jets.
13. Carburetor has oil in the bowl due to excessive oil in pre-mix.
14. Carburetor vacuum diaphragm torn, cracked, not seated or installed improperly.
15. Multiple carburetors out of sync.
16. Fuel filter clogged.
17. Old or contaminated fuel.
18. Fuel tank vent system plugged or carb vent line closed off.
19. Gas cap diaphragm valve faulty.
20. Vacuum line from the intake manifold to fuel valve is broken, cracked, pinched, or missing.
21. Carburetor controls misadjusted.
22. Incorrect valve timing.
23. Valve springs floating, weak, or broken.
24. Damaged intake or exhaust valve.
25. Incompatible performance parts.
26. The control module may be in "LIMP" mode
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/air-cooled-twins-technical-talk/218588-bonneville-misfiring-at-low-revs.html
http://www.bonnevilleamerica.com/forums/showflat.php?Cat=0&Number=234884&page=0&fpart=all&vc=1
https://www.manualslib.com/manual/461452/Triumph-Bonneville-750.html
https://www.triumphestore.com/
https://www.manualslib.com/manual/538488/Triumph-America.html

2004 Triumph... | Answered Yesterday

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