Triumph Thunderbird - Recent Questions, Troubleshooting & Support

Additional info for changing the oil on a 1998 Triumph Thunderbird can be found here: https://www.webbikeworld.com/triumph-thunderbird-sport-oil-filter-change/

This should be a straight forward replacement. Unplug the color coded wires and replace the switch with a GENUINE Triumph OEM switch - it will have the correct color coded wires to reconnect.

If your asking these sorts of questions ...take it to a garage

Either way its always a con ...or a rubbish optional alarm about to be offered..... Just buy and have installed a Data tool alarm or a Meta alarm these are fault proof units I've installed both for many years ...3rd option a 2way wirless bike alarm .which became more ..and more popular ... To bikers .. Very affordable.and secure ..

hi im not sure if that is your starter sounds more like the starter clutch and for that you will need to remove your clutch cover also the clutch cage the starter clutch is located behind the clutch cage remove the clutch cage and the starter clutch is either on the rear of the cage or a separate unit it looks like a ring the size of the clutch cage and has slots in it with roller bearings the slide in and out the often stick because of old oil residue and if they stick it stops your starter engaging with the clutch housing to turn your engine over hope this helps

fit new spark plugs

take the switch out and spray a degreaser into the area where the plunger moves in and out, dry and refit.

unlikely to be an igniter as it accelerates after backing off a bit any problem in that electronic box will fail worse with more revs indicates a problem in the carbys still with a power diaphragm not operating correctly could be an incorrect jet size in that area , float level or a vacuum advance operation check spark timing before tdc

Hi, Sounds like either your thermostat isn't working, or the switch on the side of the rad which tells the fan to switch on is faulty. They are cheap and easy to replace using a Haynes manual or similar.