Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
1989 US XT600 main shaft oil seal leak 1989 US XT600 main shaft oil seal leak
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 Andy Miller, UK, Taking a rest, Jokulsarlon, Iceland

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


Photo by Andy Miller, UK,
Taking a rest,
Jokulsarlon, Iceland



Like Tree2Likes

Reply
Page 2 of 2 1 2
 
LinkBack Thread Tools Display Modes
  #16  
Old 16 Sep 2016
Registered Users
Veteran HUBBer
  
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
Thanks man, glad you sorted it out.

Theese bikes are bulletproof, mine will reach 170.000km next week.
Reply With Quote
  #17  
Old 19 Sep 2016
Registered Users
New on the HUBB
  
Join Date: Jun 2016
Posts: 15
Hey jens,

Well I did check the play in the crankshaft and the crank is worn. I took the timing cover off and by moving the crank with a flat screwdriver you can see the movement and hear a clunk. Not good... time for new crank bearings. there also is a knock at mid RPM and a vibration at 70 mph with stock gearing.

This is a job i can do yet will need to install a new rod while I'm at it. I will have to send that out.. I did see a guy names Mr. Crankshaft.. will rebuild the crank for 170.

The interesting part is how to remove the cam chain sprocket on the left side so you can replace the bearing. Yamaha sells the left side as a full part only. May be the only way to go.

Thanks!!!

Eric
Reply With Quote
  #18  
Old 15 May 2017
Registered Users
HUBB regular
  
Join Date: Oct 2007
Location: SE england
Posts: 96
How I didn't come off, nobody will ever know but I got home from a ride a couple of days ago to find oil all over the rear tyre and swing arm. Eventually located oil leak source to a completely blown main shaft oil seal. As soon as the motor fires up , oil gushes out. So , I guess I have a bit of a problem! I can't see any breather blockages, so i can only assume the oil pump isn't pumping? I didn't feel or hear anything amiss when on the ride......Would a blocked filter cause such pressure.?
Reply With Quote
  #19  
Old 15 May 2017
Registered Users
New on the HUBB
  
Join Date: Jun 2016
Posts: 15
XT oil issue
The XT has a lot of oil pressure... make sure you do not overfill your oil tank. It is easy to do. If your seal is old then it just needed replacing. My breather was getting restricted as I was using an aftermarket shock and the stock hose was too short. A new hose fixed the issue. The seal is easy to replace with the bike on its side. Try that and make sure you have the right oil level.
Reply With Quote
  #20  
Old 15 May 2017
Registered Users
HUBB regular
  
Join Date: Oct 2007
Location: SE england
Posts: 96
Funny you should say that,! I left the sump plug out overnight and collected about 750mls. Just now I checked the dipstick and it was way over the high level, so I was able to test the oil pump with taking the bleed screw out. Plenty of oil was pumped out. So that's a relief. Went on to dig out the seal which to me was very soft and flexible - not at all like an oil seal should be. Hmm. Oh well, should have a new seal and oil filter fitted on Thursday. My bike is year 2000 with 70,000km, (the last 60k by me ).
Reply With Quote
  #21  
Old 16 May 2017
Registered Users
New on the HUBB
  
Join Date: Jun 2016
Posts: 15
Great!! Mine has 37K US miles on her and she needed all new bearings and a stock sized piston... she now runs like new.
Reply With Quote
  #22  
Old 27 Sep 2017
Registered Users
New on the HUBB
  
Join Date: Sep 2017
Posts: 2
Quote:
Originally Posted by esacco View Post
Thanks Bob!

That was the issue! The new YSS shock has the spring set higher in the shock structure where the breather hose connects to the air box. It partially restricts it when you sit on the bike as the spring compresses. When you take the bike off road and hit impacts the spring was closing the vent line fully causing oil to purge out of the main seal.

Problem solved and thanks again!

Eric
Hi Esacco. I'm interested on that shock. Please, Can you share the yss code? I Need another help. Can you measure the stroke of the shock? Thanks a lot. Nice bike.

Inviato dal mio Vodafone Smart ultra 6 utilizzando Tapatalk
Reply With Quote
  #23  
Old 28 Sep 2017
Registered Users
New on the HUBB
  
Join Date: Jun 2016
Posts: 15
shock
Hi there! The shock # is MZ506-395TRL-01-X

It is a little longer than the stock unit.... .25 inch or so. The stroke is the same as the stock or close to it. The difference is NIGHT AND DAY!!! You can literally FLY off road and jump off of 4 ft water bars without bottoming. The stock unit is totally worthless.

THey are VERY high quality and also can be rebuilt. Get it on Amazon for the best price.
Reply With Quote
  #24  
Old 1 Oct 2017
Registered Users
New on the HUBB
  
Join Date: Sep 2017
Posts: 2
Quote:
Originally Posted by esacco View Post
Hi there! The shock # is MZ506-395TRL-01-X

It is a little longer than the stock unit.... .25 inch or so. The stroke is the same as the stock or close to it. The difference is NIGHT AND DAY!!! You can literally FLY off road and jump off of 4 ft water bars without bottoming. The stock unit is totally worthless.

THey are VERY high quality and also can be rebuilt. Get it on Amazon for the best price.
Yeah!! Many thanks.

Inviato dal mio Vodafone Smart ultra 6 utilizzando Tapatalk
Reply With Quote
Reply
Page 2 of 2 1 2

Tags
countershaft, main shaft, oil leak, transmisson sproket

« 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
2015 - Heading east from Europe, add your itinerary / plans kim Travellers Seeking Travellers 190 5 Mar 2016 08:38
XT600 Fork Seal Leak (New Seals) Wordsworth Yamaha Tech 7 7 Jan 2014 18:29
XT600e oil leak bm150875 Yamaha Tech 6 18 Sep 2013 08:28
Oil leak xt600 xtrock Yamaha Tech 21 20 May 2013 18:13
XT600E 2002 Engine Oil Trichelia Yamaha Tech 17 17 Nov 2011 15:25

 
 

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.

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 14:05.

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