Remove and replace starter solenoid assembly for 2002 Triumph Thunderbird 900

https://www.youtube.com/watch?v=DYec1yFX3YI

The above link is one of the best explanations of the starting system on a bike that I have seen. Not a Triumph, I know, but using all the information he gives is a great help in trouble shooting. I would recommend watching his other videos because he explains it all in real easy to understand ways.

On the WEB
images for remove seat on triumph thunderbird 900 1995

fit new spark plugs

If your starter will not stop turning over then your starter solenoid contact bar is stuck in the closed position. It should only close when you hit the starter button. With the solenoid out of the bike check the solenoid battery terminals for continuity. If there is continuity across the large terminals, replace the starter solenoid.

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

Check fuel filter and air filter, then spark plugs, not necessarily in that order.

I recently had to change my sparks on my 2002 thunderbird. It certianly wasn't a simple case of remove fuel tank as you still get the spine of the bike blocking your path. Any standard box spanner and even the Triumph spanner failed to get enough clearance to access the plug. Short of removing the whole engine block I removed the top cover of the engine and used a shorter 5" box spanner. Fiddly job but with the tools at hand worked. Unless someone knows of any specialist bendy spanners?

Here is the haynes manual. This is worth he money if you are going to work on it.

http://www.repairmanual.com/motorcycles/1999/66/0/7175/349