20 Most Recent 2008 Triumph Triumph Bonneville Questions & Answers


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/maintenance-and-workshop-talk/170021-my-2010-bonneville-will-not-start.html
https://www.motorcyclecruiser.com/what-to-do-if-your-motorcycle-doesnt-start/
https://www.tradebit.com/filedetail.php/278334910-triumph-bonneville-service-manual-motorcycle-2001-2012 $15
https://www.triumphmotorcycles.com/offers-and-services/genuine-parts
https://www.manualslib.com/manual/805136/Triumph-Bonneville.html

2008 Triumph... | Answered on Nov 05, 2019


Hi, Anonymous 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.tradebit.com/filedetail.php/278334910-triumph-bonneville-service-manual-motorcycle-2001-2012 $15
https://www.triumphestore.com/
https://www.triumphmotorcycles.com/offers-and-services/manuals
https://bikez.com/motorcycles/triumph_bonneville_2008.php
https://en.wikipedia.org/wiki/Triumph_Bonneville

2008 Triumph... | Answered on Oct 17, 2019


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.triumphtalk.com/threads/anyone-install-a-center-stand-on-a-bonneville.44342/
https://www.triumphrat.net/air-cooled-twins-technical-talk/168890-center-stand-installation-confusion.html
https://www.youtube.com/watch?v=r-qG3t7b58o
https://www.tradebit.com/filedetail.php/278334910-triumph-bonneville-service-manual-motorcycle-2001-2012 $15
https://www.triumphestore.com/
https://www.triumphmotorcycles.com/offers-and-services/manuals

2008 Triumph... | Answered on Oct 17, 2019


Hi, Dclasson001 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.triumphindia.org/2015/05/torque-settings-for-triumph-bonneville-t1oo-thruxton-scrambler-tabulated/
http://triumphtwincommunity.nl/usr-uploads/pdf/Triumph-Bonneville-Torque-Settings.pdf
https://www.tradebit.com/filedetail.php/278334910-triumph-bonneville-service-manual-motorcycle-2001-2012 $15
https://www.triumphestore.com/
https://www.triumphmotorcycles.com/offers-and-services/manuals

2008 Triumph... | Answered on Oct 17, 2019


Hi, Geoffws if your carburetor or exhaust is:
COUGHING is usually caused by an air leak in the intake system and will generally have the same telltale signs, a wet or damp build-up of oil/gas seepage at the intake manifold to the cylinder head or carburetor to intake manifold connection and in rare instances a worn throttle plate shaft and or seals.
POPPING on deceleration is usually caused by a lean fuel condition or an air leak in the exhaust system and is generally located where black carbon soot is seen as a flashing build-up from any joint connection. This condition can easily be remedied by removing and cleaning both joint pieces and reassembling with high temp silicone and torquing the exhaust clamp to the proper spec.
SPITTING is usually caused by a faulty accelerator pump and or nozzle, or the float bowl needle and seat leaking and overflowing through the main jet mixing well nozzle, or the air-fuel mixture screw is adjusted too lean.
BACKFIRING is usually caused by a sticky/tight intake valve or a timing issue, 180 degrees out or cam chain off 1or 2 teeth.
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/87954-popping-when-decelerating.html
https://www.r3owners.net/threads/exhaust-popping-running-lean.21998/page-2
https://www.tradebit.com/filedetail.php/278334910-triumph-bonneville-service-manual-motorcycle-2001-2012 $15
https://www.triumphestore.com/
https://www.triumphmotorcycles.com/offers-and-services/manuals

2008 Triumph... | Answered on Oct 17, 2019


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 on Oct 17, 2019


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 on Oct 17, 2019


Hi, Davi 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. 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.
2007 Bonneville No Spark Triumph Forum Triumph Rat Motorcycle Forums
How to diagnose no spark situation on motorcycle
Triumph Bonneville Service Manual Motorcycle 2001 2012 Download Manuals... $15 very cheap
https://www.triumphestore.com/
Triumph Bonneville Owner Handbook Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


2008 Triumph... | Answered on Mar 15, 2018


Put a test light on the coil packs see if they're giving you Sparks

2008 Triumph... | Answered on Sep 17, 2017


Instructions
    • 1 Clean the underside of the motor with soap and water to remove any dirt and oil build-up that could contaminate the motor.
    • 2 Warm your motorcycle to operating temperature by starting the motor and letting the oil warm up or by taking a short ride. The oil will expand slightly and flow better to give you a more accurate reading.
    • 3 Park the motorcycle on a level surface and turn the ignition switch to the "Off" position. Place your Triumph on its center stand, if equipped with one, to provide additional stability.
    • 4 Place your catch basin directly below the oil drain plug on the underside of the motor and remove the drain plug with the appropriately-sized socket. Allow the oil to drain until the flow has reduced to a thin trickle then replace the drain plug.
    • 5 Locate the oil sump drain plug and center your catch basin below it. Remove the drain plug and allow the oil to drain until the flow is reduced to a thin trickle then replace the drain plug. Replace the drain plug. Note that this step is only required on certain models, such as the Thunderbird Sport and older "oil-in-frame" models.
    • 6 Remove the oil filter with an oil filter wrench and discard the old filter.
    • 7 Fill the new oil filter with fresh oil, coating the inner lip of the filter lightly with oil to provide a stronger seal before screwing the filter onto the motor. Tighten the filter by hand until it is secure.
    • 8 Add your engine oil into the oil tank. Replace the cover and wipe away any spilled oil.
    • 9 Locate the engine sump bolt, located at the base of the cylinders and the carburetors. Remove the bolt and add half a quart of oil into the sump. Replace the bolt and wipe away any spilled oil. Note that this step is only required on older "oil-in-frame" models.

2008 Triumph... | Answered on Jan 25, 2015


Hi,
It sounds like the fuel pump priming cycle which is normal.

Does it sound like this:
http://www.youtube.com/watch?v=G0alEueihx0

2008 Triumph... | Answered on May 09, 2014


It's a rarity but check fuel line routing, Make sure it's not close to any hot engine or exhaust heat.

2008 Triumph... | Answered on Oct 22, 2013


Ok check your fuel filter first,then check fuel supply, If fuel is restricted the fuel pump will starve for fuel. You should check fuel pressure at intake. It does not sound like a fuel problem. Also does it happen at idle or under acceleration.

2008 Triumph... | Answered on Oct 22, 2013


First is keep forks clean next is to park inside a garage out of the weather. A light coating of Fork Oil will slow any corosion.

2008 Triumph... | Answered on Oct 22, 2013


this sounds like thermal breakdown of the crankshaft pick up coil. you need to trace the 2 wires from the pick up to the connector it will be under the seat, then check how many ohms the coil has cold then run until it stops working and check again. you might find it has become open circuit when warm. the OEM is Gill and they are not very good try to source a replacement from http://www.electrexworld.co.uk make a good one, its from a Ducati but is better than OEM

2008 Triumph... | Answered on Oct 15, 2013


hello if u want to sell your old exhaust system please email me at
ezmoneybruce@yahoo.com
thank you

2008 Triumph... | Answered on Sep 21, 2013


No need to remove tank. I use an 18mm (i think) deep socket to loosen plug and slide a 8 inch piece of tygon tubing over the plug to screw it out. Insert new plug into the clear tubing to engage (start) the threads of new plug. Most hardware/home supply stores sell the clear soft plastic tubing very cheap. Take a new plug with you to get tubing that will fit snugly on the spark plug insulator. Tightend to specified torque setting and ride. Do not overtighten, as the aluminum head will strip easily.

2008 Triumph... | Answered on Jan 22, 2013


Check float level It might be to high Or gas is going by needle and seat Maybe rebuild carb MOPAR KENNY

2008 Triumph... | Answered on May 22, 2011


battery is to flat or starter sol is faulty

2008 Triumph... | Answered on Apr 30, 2011


My front brakes would pulsate. I replaced the front disc because it had warped but after 10000kms I had to do it again. After a lot of research I finially got the right answer from a brake disc technician. The hub was warped and needed to be machined, otherwise the disc would end up doing the same. He also replaced the front disc with a floating disc. So far (5000kms) the problem hasn't returned!

Pheff, Australia

2008 Triumph... | Answered on Oct 11, 2010

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