Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
XT Tenere 3AJ Running issues XT Tenere 3AJ Running issues
Register FAQ Calendar Today's Posts
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Ulrike Hahnel, Rock Formations on the Lagune Route, Bolivia

I haven't been everywhere...
but it's on my list!


Photo by Ulrike Hahnel,
Rock Formations on the
Lagune Route, Bolivia



Like Tree2Likes
  • 1 Post By turboguzzi
  • 1 Post By

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 7 Sep 2021
Registered Users
HUBB regular
  
Join Date: May 2010
Location: Cornwall
Posts: 41
XT Tenere 3AJ Running issues
Please could I pick some brains. I'll try to give all the details.
My '89 3AJ as been faultless for over 10 years but this weekend has had some issues.
A full tank of fuel and after around 50miles I settle into a little duel carriageway riding. 50-60mph seems fine but getting closer to 70 to overtake or wind back the throttle for a hill and it starts to miss a little until I back it off a bit.
longer into the journey it seems to get worse. I can pull over and just about keep the revs going as not to cut out and after around 30 seconds it will happily tick over and I can set off again, sometimes it cuts out all together. then just left for a minute it will fire back up and run again.
It seems like riding A and B roads are fine but long drawn out duel carriage way/motorway riding causes this.
Last year during lockdown I serviced the bike, tank was already clean inside, new fuel lines and inline filters and checked the fuel pump (it looked fine inside)
I took the inline filters off for my return journey this weekend thinking they could have been causing some fuel starvation but didn't seem to change anything
Any ideas from you guys would be greatly appreciated
Last edited by fugitive; 8 Sep 2021 at 00:01. Reason: spelling
Reply With Quote
  #2  
Old 8 Sep 2021
R.I.P. 25 November 2021
Veteran HUBBer
  
Join Date: Feb 2010
Posts: 688
It could be the secondary carb not opening properly, it's the RH side & has the dome on top, there is a diaphragm inside & it could have perished.



It could also be your float needle valve filter is blocked, have your checked that?



It may be an electrical issue, we will talk about that later.

Mezo.
Reply With Quote
  #3  
Old 8 Sep 2021
Turbofurball's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Sep 2021
Location: Catalunya
Posts: 326
Just to add to the list, this does sound like classic symptoms of fuel starvation so it's worth making sure that there aren't bits of rust floating around in the bottom of the tank getting stuck in the fuel line, or if the bikes been left standing a while then ethanol snot can cause this sort of thing too.
Reply With Quote
  #4  
Old 10 Sep 2021
Registered Users
Veteran HUBBer
  
Join Date: Feb 2012
Location: Milan, Italy
Posts: 607
some checks are easier


disconnect rubber boot and check with your finger that CV carb slide can move freely


for fuel starvation check - close tap, remove drain screw from carb bowl, open tap, fuel should stream out the carb bowl drain pretty freely...


like mezo said, it could be ignition power coil on its way out, so check the two items above first
Reply With Quote
  #5  
Old 11 Sep 2021
Registered Users
Veteran HUBBer
  
Join Date: Feb 2010
Location: UK
Posts: 272
Blocked tank breather? High fuel requirement causes a vacuum that the breather can't cope with, reducing fuel flow. Lower revs and enough air can enter to let the fuel flow and get back to atmospheric pressure.
Happens a lot on older TTR locking tank caps (not later ones with a breather pipe)
Reply With Quote
  #6  
Old 9 Oct 2021
Registered Users
HUBB regular
  
Join Date: May 2010
Location: Cornwall
Posts: 41
Thanks mossproof, I did think of this as it seemed to get worse on both occasions as I was getting into the journey and fuel was dropping in the tank so I released the petrol cap as it started to happen and for a few miles after but sadly no difference
Reply With Quote
  #7  
Old 9 Oct 2021
Registered Users
HUBB regular
  
Join Date: May 2010
Location: Cornwall
Posts: 41
Thanks turbofurball, I had the time last year to go through the bike and the tank was spotless, the diaphragm in the pump was clear and I replaced fuel pipes and filters
Reply With Quote
  #8  
Old 9 Oct 2021
Registered Users
HUBB regular
  
Join Date: May 2010
Location: Cornwall
Posts: 41
Thanks for your input everyone. Sadly I've not had the chance to get the bike out of the garage since I've returned home. I can't remember if I filled up with E10 before my ride Cornwall-Surrey but it was E10 coming home (not sure if this could have made a problem)
But will be filling up with E5 now I've found some and will take for a long ride and see if the problem is still there before looking deeper into it.
Thank you again for your help, I will report back
Reply With Quote
  #9  
Old 11 Oct 2021
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: London
Posts: 178
Quote:
Originally Posted by fugitive View Post
Thanks for your input everyone. Sadly I've not had the chance to get the bike out of the garage since I've returned home. I can't remember if I filled up with E10 before my ride Cornwall-Surrey but it was E10 coming home (not sure if this could have made a problem)
But will be filling up with E5 now I've found some and will take for a long ride and see if the problem is still there before looking deeper into it.
Thank you again for your help, I will report back
I don't think E10 would cause an immediate problem - my (albeit rough) understanding is that it tends to 'gum-up' older engines over time.

Not sure what year your 3AJ is but I checked my 1992 3TB on the UK Government's E10 checker website, and its modern enough to be unaffected by it apparently.

Ed
__________________
Where Next Barney? Buenos Aires to Lima 2015 | London to Sydney 2015/6 | Armenia, Georgia & the FYR 2022 | Algerian Sahara 2023.
Reply With Quote
  #10  
Old 11 Oct 2021
Turbofurball's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Sep 2021
Location: Catalunya
Posts: 326
Yeah, if you're parking the bike for months at a time the E10 leaves snot in the carb, but shouldn't cause problems if you're using it regularly-ish. I've managed 6 months without problems before, but always had to clean everything after a year of sitting with E10.

Best thing is to just open it up and have a poke around for something not looking right (or get someone else to if in doubt)
Reply With Quote
  #11  
Old 2 Apr 2022
Registered Users
HUBB regular
  
Join Date: May 2010
Location: Cornwall
Posts: 41
I finally got chance to look at the bike today. The inlet manifolds have become un bonded, the rubber and the ally totally separated. I'm surprised it ran as well as it did.
Replacement manifolds on Ebay were a lot cheaper than I expected. I've not ordered any yet, just wondered if these are cheap and nasty manifolds or if it's just the price they are now. I'm sure years ago they were more like £60/£80
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Front Brake Caliper for Tenere 3AJ Budgebailey Yamaha Tech 7 28 Sep 2014 17:04
XT600 running issues ajax Yamaha Tech 17 21 Nov 2013 05:12

 
 

Announcements

Thinking about traveling? Not sure about the whole thing? Watch the HU Achievable Dream Video Trailers and then get ALL the information you need to get inspired and learn how to travel anywhere in the world!

Have YOU ever wondered who has ridden around the world? We did too - and now here's the list of Circumnavigators!
Check it out now, and add your information if we didn't find you.

Next HU Eventscalendar

ALL Dates subject to change.

2024:

  • California: April 18-21
  • Virginia: April 25-28
  • Germany Summer: May 9-12
  • Québec: May 17-19
  • Bulgaria Mini: July 5-7
  • CanWest: July 11-14
  • Switzerland: August 15-18
  • Ecuador: August 23-25
  • Romania: August 30-Sept 1
  • Austria: September 12-15
  • France: September 20-22
  • Germany Autumn: Oct 31-Nov 3

2025 Confirmed Events:

  • Virginia: April 24-27 2025
  • Queensland is back! May 2-4 2025
  • Germany Summer: May 29-June 1 2025
  • CanWest: July 10-13 2025
  • Switzerland: Date TBC
  • Ecuador: Date TBC
  • Romania: Date TBC
  • Austria: Sept. 11-15
  • California: September 18-21
  • France: September 19-21 2025
  • Germany Autumn: Oct 30-Nov 2 2025

Add yourself to the Updates List for each event!

Questions about an event? Ask here

See all event details

 
World's most listened to Adventure Motorbike Show!
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...

Adventurous Bikers – We've got all your Hygiene & Protection needs SORTED! Powdered Hair & Body Wash, Moisturising Cream Insect Repellent, and Moisturising Cream Sunscreen SPF50. ESSENTIAL | CONVENIENT | FUNCTIONAL.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)



Ripcord Rescue Travel Insurance.

Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.

Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!


 

What others say about HU...

"This site is the BIBLE for international bike travelers." Greg, Australia

"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK

"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia

"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA

"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada

"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa

"This is the answer to all my questions." Haydn, Australia

"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany

Lots more comments here!



Five books by Graham Field!

Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook

"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.



Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!

Your ad could be here, on EVERY page of the HUBB, or the whole website, or as many as you like!

New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80G/S.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events all over the world with the help of volunteers; we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, or ask questions on the HUBB. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.



All times are GMT +1. The time now is 00:06.

Contact Us - Horizons Unlimited Motorcycle Travellers Website - Archive - Privacy Statement - Top