|
21 Aug 2006
|
Registered Users
HUBB regular
|
|
Join Date: Aug 2006
Location: Cape Town
Posts: 28
|
|
Vibration on acceleration
Hi Guys
I have a very early model 34L (engine# 0000552), and i am experiencing some strange vibration on acceleration! It is only on acceleration and there is no vibration when in gear with the clutch depressed or on neutral. The wheel bearing is also fine.
I have searched the site and have not found much on locating the source of vibration. Could this be due improper chain tension? My seems slightly slack.
How do i go about finding the problem as i dont want do any thing that cold result in damage to my baby.
Im sure some of you guys can help me! I look forward to a response!
|
22 Aug 2006
|
Registered Users
HUBB regular
|
|
Join Date: Jul 2006
Location: Lincolnshire UK
Posts: 49
|
|
Hi, welcome to HU, do you have any more information about the nature of the vibes?do you have an idea where the vibration is coming from is it chassis or engine related, I have had a similar problem recently on my road bike and it was traced back to head bearings, things I looked at were as follows
Correct rear wheel alignment
Correct drive chain adjustment and general condition of chain and sprockets
Wheel bearings
Possible warped braking discs
Correct brake pad fitment no uneven wear characteristics
Correct tightness of engine mounting bolts
Swinging arm, check for play in the movement
All the above was OK, head bearings have a dramatic effect on handling characteristics and can cause judder and vibes but there are many other potential causes,
Do you experience any other sensations especially with your hands off the bars, any effects under braking? How long you had the bike, do you know its history, has it been dropped or repaired (possible bent frame, forks or yokes)
Don’t know much about XT engine issues maybe a simple problem in that department however it would not hurt to check the above anyway. Cheers - Greg
|
23 Aug 2006
|
|
Contributing Member
Veteran HUBBer
|
|
Join Date: Jul 2005
Location: Wirral, England.
Posts: 5,673
|
|
Warped clutch plates can be added to the above mix.
__________________
Did some trips.
Rode some bikes.
Fix them for a living.
Can't say anymore.
|
24 Aug 2006
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2005
Location: Northumberland, UK
Posts: 219
|
|
How about other components of the drive train? Like the gearbox? Any worn/broken gearwheels could cause vibs under load...
Do you experience the vibes during crusing as much as under acceleration?
Jens
|
30 Aug 2006
|
Registered Users
New on the HUBB
|
|
Join Date: Jul 2006
Location: Cape Town RSA
Posts: 13
|
|
GOOD Vibrations!!
Hi there guys!!
I met up with Wingnut, in the Fair Cape and had a ride on the problem bike..... The vibrations are really bad on accelaration, but unlike my mate I feal they are coming through the steering Head assembly??? Any Ideas.....
THE rear sprocket is worn and the chain looks stretched.....as the rear wheel is so far Back on the swingarm that the snail cams dont even touch the adjuster lugs!!!!! This could cause the problem, although worn gear box gears do seem like a possible cause as well?
How would you check that!!!Without dissesembly,PLEASE!
Wingnut could you give us an update. Happy fixing
Cheers Bryan
|
30 Aug 2006
|
|
Contributing Member
Veteran HUBBer
|
|
Join Date: Jul 2005
Location: Wirral, England.
Posts: 5,673
|
|
Errrr yes.. Very much so !! The cams arnt even in contact so you dont even know if the wheel is alighned.. Knackered sprokets and chain are making things worse for sure.. First off he had to get these replaced as a priority and get a new chain of the correct length, making sure the chain has enough links in to get the rear wheel off, but enough to take up the slack when it wears.
If your thinking its coming through the front end then i think you should check the headstock bearings as a priority.. You need to check for freeplay and ease of movement. With the front suspended off the floor there should be no movement in the bearings and they should only be loose enough to let the bars move side to side under their own weight... Idealy you should take the bearings out and check for pitting but try nipping up the ring nut at the top and see if it sorts it.. pack some grease in there too.
If you can safely rule out the headstock bearings, check for play in the wheel bearings.. If they are fine then check the wheel is true and the forks arnt bent etc.
Quote:
Originally Posted by PARAMED1
Hi there guys!!
I met up with Wingnut, in the Fair Cape and had a ride on the problem bike..... The vibrations are really bad on accelaration, but unlike my mate I feal they are coming through the steering Head assembly??? Any Ideas.....
THE rear sprocket is worn and the chain looks stretched.....as the rear wheel is so far Back on the swingarm that the snail cams dont even touch the adjuster lugs!!!!! This could cause the problem, although worn gear box gears do seem like a possible cause as well?
How would you check that!!!Without dissesembly,PLEASE!
Wingnut could you give us an update. Happy fixing
Cheers Bryan
|
__________________
Did some trips.
Rode some bikes.
Fix them for a living.
Can't say anymore.
|
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
HTML code is Off
|
|
|
|
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.
"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™ 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!
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.
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.
|
|
|