Question about 2002 Triumph Triumph Thunderbird

1 Answer

Bike jumps out of first gear about 75% of time when taking off from a start. Whats the problem? The rest of the gears work perfectly.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 345 Answers

Sounds like a worn out selector fork, or some part in the gear box that holds it into gear. Have you tried holding the gear lever down throughout first gear, then changing to second? Either way, the only way to fix it, is to have the gear box taken apart, and the worn out item replaced.

Posted on May 03, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

The chain feels and sounds like it's jumping gears or slipping on the rear sprockets. It does it in all gears. It is a diamondback wildwood large 20"

The rear derailleur needs adjusting, once to establish limits (so it can't go past high gear or low gear). Everything else is up to you fine-adjusting the shifter to make the bike run quietly. If you're careless about your gear changes, you'll get MOSTLY into one gear but not quite perfectly, so the bike is always trying to start shifting into another gear - that's the sound you hear, the sensation you feel. Fine-tune your shifter positions each time you shift - you'll find a "sweet spot" where the bike runs almost perfectly silently.

No, they can't readily do that at the factory, not with chain drives. There are just too many things that can affect gear changes, and things are in a slightly different position every time you remove & replace the rear wheel, or even loosen & retighten it. Unless you're ready to spend vast dollars on a foolproof shifter system, shifting cleanly is going to be your job and your job alone. It's one measure of your bike riding skill... and the better you get at that skill, the better you feel about it.

...and your bike will like you for it.

Jul 30, 2014 | Diamondback Mens Wildwood Classic Comfort...

1 Answer

How do i get my bike to change gear when told to and to not jump out of gear

Nice bike, its a clutch problem, you might need to rebuild the clutch, beef it up a bit.

Feb 10, 2014 | Motorcycles

1 Answer

2010 crf450r jumping outta gear from 5th to 4th all other gears work fine

Terrence >>>> 1. Do not go through the gears while idling on a stand!!!
The rear tire is not moving at the speed that is normal for 4th or 5th gear..AND if you do get the tire moving that fast.. it is BEYOND DANGEROUS!!
This sounds like the 4th and 5th gears may need replacing.. or the shift drum detent for 5th gear has somehow become ineffective.. If you continue to ride this bike , you may cause more trouble and damage to the transmission.

Take this to a qualified professional!!

Jun 24, 2017 | Honda Garden

1 Answer

2007 fxstb bucking in third gear

The dogs on the gears are worn, strip & replace

Ride Safe

Jan 31, 2012 | Harley Davidson Motorcycles

2 Answers

How to jump start my bmwk75s

put it in 2nd holding your clutch in pick a fast walking pace up ease off the cluth hope fuly this wil start bump start your bike

Aug 31, 2011 | 1990 BMW K 75 S

2 Answers

Hi i've got a honda cbr600f 03 when accelerating hard in 3rd it jumps in to second, what are the possible, causes and whats required to solve the problem. ta

Ascertain that the bike least has an automatic gearing system. For example, automactic gears least requires clutch to propel bike. Once the bike is at slow motion captures an improvided speed with acceleration.

Mar 13, 2011 | Honda CBR 600 F(4)i Motorcycles

1 Answer

When i drive my bike a 1990 harley davidson flhtc and go into 5th gear it clunks in and out of gear while i am driving down the road not like a slipping cluch like going into neutral then back into gear...

This is unusual. I'm afraid that if your transmission is doing this, you are going to have to do at least a partial teardown of the transmission.

I could be that the shifter cam is not rotating fully to put the 5th gear clutch dog into gear. This would cause just the tips of the lugs to be driving the final drive gear. And, it could jump out and back in from time to time.

Now, why the shifter cam is not rotating fully is the question. If the rest of the gears seem to be shifting fine, I wouldn't think it was the shifter pawl but it could be.

If it were mine, I'd remove the exhaust system and whatever else needed to gain good access to the the transmission top cover. Remove the cover and raise the rear of the bike off the ground. Now, you can shift the transmission and watch the actions of the shifter cam. You may spot something wrong there and be able to repair the problem without pulling the transmission out of the frame. If not, you may have to pull the entire transmission or at least the trap doors with the shafts to inspect the final drive gear. You may wind up replacing the final drive gear if the clutch dog has been jumping in and out of gear.

One other thing. Have you checked your front belt pulley? I've seen the splines in the pulleys wear to the point that they just strip out and won't pull the bike in any gear. Check that before you start tearing down the transmission. Usually when this happens, (excessive wear on the front pulley) it is accompanied by a small transmission fluid leak. If you ride the bike and park it, it'll leak a spot about the size of silver dollar. If you wipe the spot up, it won't leak again until you either ride the bike again or start it up. Then, it'll leak again. The transmission fluid is leaking past the "quad seal" behind the pulley.

Good Luck

Dec 20, 2010 | Harley Davidson FLHTCUI Electra Glide...

2 Answers

My Yamaha TTR250 1998 model starts and idles fine but when you put it into gear it stalls the bike?

I had an old YZ465 that use to do that. Has it sat a long time? I found on mine the clutch discs were stuck together. I use to start it and then push the bike and jump on and hit it in gear. That would break the discs loose. After that it would work fine until I stored the bike for a long time again.
Hope that helps. Just go easy with it, because the springs force all the oil out from between the clutch plates so they will be dry for just a moment where they were bound together..

Oct 27, 2010 | 2002 Yamaha TT-R 250

1 Answer

I just got a new bike for my birthday. It is a mongoose vanish with the shimano tourney sis index. The high gear and the low gears work fine when riding, but all the others jump up a gear when riding. ...

Your bike needs to have the derailers adjuster. If It was bought at a bike shop, take it back and have them adjust it. If it was bought at Wal-Mart, Fred Meyers, or any other chain store, don't waste your time going back, they don't support what they sell. Find a local bike shop and have them do the adjustments AND have them show you how to do it your self. Yes, it will cost money to do this. You could go online to shimano's web site and find the directions on adjusting the derailers, but if you do that and make the problem worse, you will find yourself at the bike shop having them take care of it. I would start at the bike shop, they may offer a free class on bike maintenance as well.

Aug 11, 2010 | Cycling

1 Answer

1996 vulcanD classic 1500 30,000km

sounds like the gear selector plate plunger is worn or needs a new spring. on most engines a hollow screw @ 3/4" is accessible from under gear box, take it out and stretch the spring and retry to eliminate possibility.

Sep 14, 2009 | 1996 kawasaki VN 800 Vulcan Classic

Not finding what you are looking for?
2002 Triumph Triumph Thunderbird Logo

Related Topics:

189 people viewed this question

Ask a Question

Usually answered in minutes!

Top Triumph Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Are you a Triumph Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides