20 Most Recent 1998 Triumph Triumph Thunderbird Questions & Answers

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/

Clutches may be sticking from sitting. put into high gear and push to try and loosen. If not, you may need to open up the clutches and separate them.

if its running leave it alone its probably a connection for a different model. companies use standard wiring harnesses for most of there bikes and just omit some wires for different bikes.

various differences. found this on search, triumph, might be of use to you

Sounds like the starter solenoid is on its way out.Follow the positive lead of the battery down to a small canister,about the size of a pill bottle.When you advance the key you should hear a distinctive click coming from this part.If you don't try tapping on it lightly to see if you can get it to click.If you have a 12 volt meter you should be getting a good solid 12 volts going down to the starter motor from the solenoid .If you don't you have your culprit.Happy Riding

take off the bottom of the carburator four screws check floats and clean bowl sounds like bad fuel too or floats are getting stuck

try changing No.1 or 2 coil to No3. wiring to make sure coil is sparking if not you may have two faulty coils

the float is stuck in the open position, this is common after sitting for a period of time. You will have to remove the carb and clean it out.

if it sounds like its gratting then it is the starter clutch and unfortunately its a crankcase split.

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

Was the bike working okay after the overhaul? Mis firing due to bad setup or very bad fuel.If it has not run right since the work was carried out ask the repairer to take a look. If it only started to go awry after using wheap fuel, (it should still be of uniform quality with other fuel,) I would drain the tank and refill with premium. Try not to get any air into the system if you do this, makes life easier GOOD LUCK

I'm not particularly familiar with your bike, most bikes the oil has to be dumped out of the top. Some have drain plugs at the very bottom, but with a little extra work you should take the tubes off and thoroughly drain and flush. Removing the tubes is pretty straight forward, supporting the front, removing bolts and nuts and speedo cable. I always recommend to spend a couple bucks and buy a service manual from say amazon. It's the best $$ you'll ever spend. I cannot over emphasize to be OH SO careful taking the top plug out, it's spring loaded and capable of taking a couple teeth or pranging your nice car parked in the garage. A manual will lay it all out, how to inspect and type/quantity of oil. With only 2 wheels keeping you off the pavement, an inexperienced job on one is ill afforded.

When you fit new sprockets you also have to fit a new chain if you dont your sprockets will wear out very quickly, as your old chain is stretched to the old sprockets.

Speedometer worn out, replace it with new one.

it should beon the sump it should be about a 19 mm or 17 mm bolt,if you have the owners manual have a look under servicing if you do not have this ring your dealer and ask them cheers hope this helps

There are at least two gear shafts, please specify. In general, this kind of repair requires someone that has proper knowledge, training, and tools to complete properly.

Make sure your kill switch is in the run position and that you are in neutral before you try to start.

Let me know what happens please.

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