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 Paul Stewart, of Egle Gerulaityte - Must love Donkeys!

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


Must love Donkeys!
Photo by Paul Stewart,
of Eglė Gerulaitytė with friends.



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10 May 2019
Contributing Member
Veteran HUBBer
 
Join Date: Sep 2004
Location: Vancouver BC Canada
Posts: 118
Clutch disassembly XT600

Hello All,

1986 XT 600 43F

Trying to diagnose a momentary loss of drive problem at highway speed 100km/hr.

Note: engine is 33 yrs old but virtually brand new....bike has 5,000Km total.

I've measured the clutch springs/steels/fiber plates all look brand new/all in spec./ Nothing warped/Nothing blue.

The steels are rough/crosshatched only on one side? Rough only on side facing away (out)from engine. Steels are all oriented Sharp side facing out.

Couple of Questions:

Is rough on one side normal? Youtube videos & such show guys roughing up both sides of steels???

Is sharp side out the correct orientation for the steel plates?

Could the oem fiber plates deteriorate over time/lack of use & slip?
They appear mint.

Thank you,
Pawlie
Reply With Quote
  #2  
Old 11 May 2019
dzl dzl is offline
Registered Users
HUBB regular
 
Join Date: May 2012
Location: South Australia
Posts: 85
Hi....have you adjusted the clutch push rod free play correctly via adjusting screw/ nut at center of clutch basket? Make sure there is a few mm freeplay on the cable at the clutch lever after you have performed the push rod adjustment. Clutch springs still in spec?
Reply With Quote
  #3  
Old 11 May 2019
Registered Users
Veteran HUBBer
 
Join Date: Feb 2012
Location: Milan, Italy
Posts: 588
"momentary loss" sounds at least like something different to me...



A slipping clutch is quite easy to check, just drive in 5th @ 80-90 km/h and whack the throttle open, if it slips youll hear very clearly the engine revs rise without the bike going faster. It should be repeatable and will get worse with time.
If that's the case, then i'd simply change friction plates. Dont even think about roughing the steel plates lke you've seen....youll turn the clutch into a friction plate grinder and fill the engine with fibers.... people posting such videos shouldn't be allowed near a motorcycle!
Reply With Quote
  #4  
Old 12 May 2019
R.I.P. 25 November 2021
Veteran HUBBer
 
Join Date: Feb 2010
Posts: 688
Are you using semi synthetic oil?

Mezo.
Reply With Quote
  #5  
Old 17 May 2019
Contributing Member
Veteran HUBBer
 
Join Date: Sep 2004
Location: Vancouver BC Canada
Posts: 118
Hello All.

Thank you for the reply's.

Clutch has correct amount of freeplay.

All fibers/steels/springs are factory spec.

Using motorcycle specific semi synthetic (Maxima brand) in 20-50 OEM weight.

Turbo Guzzi:
Symptom I am experiencing is like going down the highway at constant or light acceleration/ throttle opening .....let's say 100km/hour...... Then BAM without warning....Bike looses drive for 1/2 maybe one second & recovers.

I spoke to a local mechanic & he suggested problem is likely ignition related,,,He said bikes as old as this often have ignition issues. Starting to lean in this direction as the condition of the clutch appears good & like you say the test for a warn clutch is simple and should be repeatable on a consistent basis.
My problem is not consistent/repeatable. Only happens rarely & without warning.

Hmmmmm!
Pawile
Reply With Quote
  #6  
Old 17 May 2019
Contributing Member
Veteran HUBBer
 
Join Date: Sep 2004
Location: Vancouver BC Canada
Posts: 118
Thanks for the info about the youtube hacks roughing up steel plates.....
I did rough up one plate then thought better of it as everything was in spec. & with 5000 Km on the engine Just couldn't see why this proceedure would be necessary.....

Put it all back together with the one scuffed up steel plate. Hopefully I didn't do too much damage!

Thanks,
Pawlie
Reply With Quote
Reply


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
XT600 clutch case cover stuck ardo123 Yamaha Tech 7 25 Aug 2016 15:16
KTM 690 Enduro 2009 - 2013 Auto Clutch (Rekluse Type Clutch) Harty TRAVEL Equipment for Sale / Wanted 0 13 Nov 2014 20:05
1984 XT600 Engine Disassembly HALTED John1189 Yamaha Tech 4 23 Sep 2014 15:26
84 XT600 Clutch Cover Needed. feetchermancj Yamaha Tech 26 25 Jul 2013 14:23
XT600 front rotor and clutch plate material Quicken Yamaha Tech 3 20 Mar 2012 14:58

 
 

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

HU Event and other updates on the HUBB Forum "Traveller's Advisories" thread.
ALL Dates subject to change.

2024:

2025:

  • Queensland is back! May 2-4 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...

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 18:32.