Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Helmut Koch - Vivid autumn colors in Canada

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


Photo by Helmut Koch
Vivid autumn colors in Canada



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 8 Jun 2023
Registered Users
HUBB regular
 
Join Date: Aug 2002
Location: Larne, N.Ireland
Posts: 68
'94 gearbox bearings

Could anyone tell me about these two bearings in the gearbox of their XTZ660.

Are they open both sides or are they 2RS sealed bearings with the inner seal removed.

I see in the oil flow diagram that oil is pushed into cavities formed in the casing around the end of the gearbox shafts and in turn, into a drilled hole in the two shafts. The oil is then forced down through the hollow gear shafts and out once again through drilled holes to lubricate the gears .

I feel that if they where open bearings some of this oil feed would find its way through the gaps in the bearing cage and not properly lubricate the internal drilled holes. But I could be wrong, maybe it doesn't matter that much.

photos attached

Ralph
Attached Thumbnails
'94 gearbox bearings-gearbox.jpg  

'94 gearbox bearings-diag-1.jpg  

'94 gearbox bearings-diag-2.jpg  


Last edited by Ralph; 8 Jun 2023 at 15:25.
Reply With Quote
  #2  
Old 17 Jun 2023
Registered Users
HUBB regular
 
Join Date: Aug 2002
Location: Larne, N.Ireland
Posts: 68
Well got no reply so just went ahead and built the engine with 2RS bearings with the inner seal removed.

As oil is designed to flow down inside the gear shafts I reckoned I would only lose some through the cage of the bearing if the seals weren't there.
Reply With Quote
  #3  
Old 18 Jun 2023
Registered Users
Veteran HUBBer
 
Join Date: Feb 2010
Location: UK
Posts: 271
I don't know, but your theory is sound:-)
What bearings were removed, or were the cases stripped when you got them?
Reply With Quote
Reply


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

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
XT600 Engine rebuild questions (crank, bearings, valveseals etc) Doubleyoupee Yamaha Tech 77 1 Feb 2019 07:10
XT 600 2KF gearbox help BigThump14 Yamaha Tech 5 25 Nov 2017 20:37
Need Steering Bearings - Uzbekistan - Kyrg - or Tajik fritzsampson Northern and Central Asia 9 15 Jul 2014 04:39
Greasing bearings preachan Yamaha Tech 2 26 Jun 2014 12:00
Replacing crankcase and bearings XT600 (parts compatibility) preachan Yamaha Tech 12 27 Feb 2014 12:55

 
 

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:

  • Queensland is back! May 2-4 2025!
  • CanWest: July 10-13 2025
  • France: September 19-21 2025

Add yourself to the Updates List for each event!

Questions about an event? Ask here

HUBBUK: info

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!

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 09:23.