Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Engine Knocking sound Engine Knocking sound
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 Sean Howman, The Pamir highway in an unseasonably cold late October, Tajikistan

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


Photo by Sean Howman,
The Pamir highway in an unseasonably
cold late October, Tajikistan



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 6 Aug 2013
Registered Users
Veteran HUBBer
  
Join Date: Sep 2012
Location: Middle USA
Posts: 349
Engine Knocking sound
Can someone here help me identify the knocking sound on my friends XT550. He purchased this bike which sounded good but idle was set higher. When he got home and set the idle slower, he noticed this knocking. I know XT's are a bit noisy but this seems pretty intense. Anyone have a good idea if this is abnormal or not?

https://www.youtube.com/watch?v=ujRgqboyuaE
Reply With Quote
  #2  
Old 6 Aug 2013
2499's Avatar
Registered Users
HUBB regular
  
Join Date: Jul 2012
Location: Yverdon Les Bains, Switzerland
Posts: 89
Sound like my one when the bolt for the balancershaft was loose.
__________________
Christian
Reply With Quote
  #3  
Old 6 Aug 2013
Registered Users
Veteran HUBBer
  
Join Date: Sep 2012
Location: Middle USA
Posts: 349
I am hoping it is something like that or a clutch problem and not a crankshaft. I would think if the crank rod bearing was out it would knock all the time and not just at idle where is kind of rock and rolls....
Reply With Quote
  #4  
Old 7 Aug 2013
xtrock's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Norway
Posts: 1,371
Its hard to tell, but it doesnt sound good at all. Is the 550 really that easy to kick, it look like you kickstart a 50..
Reply With Quote
  #5  
Old 7 Aug 2013
Registered Users
Veteran HUBBer
  
Join Date: Sep 2012
Location: Middle USA
Posts: 349
Engine knock
UPDATE:

My friend removed the clutch cover and found the primary gear nut loose. He said that the crank bearing on that side was a bit loose too. He is going to tighten the primary, check everything else for tight and close it up. Rebuild crank etc. this winter he says.

I have to rebuild my 84 this winter due to low compression and who knows what else...

I am thinking about documenting the work with a "good" video. Not a long boring remove every screw video but a highlight, overview and specific points to watch out for. I watched one on youtube and found it to be helpful but missed some important points to watch out for. I hope to do a bit better and be specific. It will be edited by me. Another area of interest for me...

Yes, it did seem a bit too easy to kick so is probably low on compression. My 86 has 170 lbs. compression and even with the compression release, it is a lot to kick over.
Reply With Quote
  #6  
Old 8 Aug 2013
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
Piston slap or maybe a bent valve.
I can't even think to stare mine that way. I have to jump on the lever with most of my weight to get it whirling over. I'd say the knock has to do with why it turns over like that.

I'd like to spend some time having a" talk " with a piece of pipe to those seller that try to cover up an issue just to pawn it off on someone else.
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
Engine numbers on bike titles? srileo Trip Paperwork 7 21 Nov 2019 21:19
3aj tenere knocking sound on cold start zuna89serbia Yamaha Tech 12 5 Apr 2013 01:53
Clacking sound!! KLR650 Wrong Way Kawasaki Tech 5 17 Mar 2012 16:43
Engine Gaskets Question preppypyro Yamaha Tech 8 6 Jan 2012 10:42
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

25 years of HU Events
Be sure to join us for this huge milestone!

ALL Dates subject to change.

2025 Confirmed Events:

Virginia: April 24-27
Queensland is back! May 2-5
Germany Summer: May 29-June 1
Ecuador June 13-15
Bulgaria Mini: June 27-29
CanWest: July 10-13
Switzerland: Aug 14-17
Romania: Date TBC
Austria: Sept. 11-14
California: September 18-21
France: September 19-21
Germany Autumn: Oct 30-Nov 2

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.

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 Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers and travel is covered on motorcycles of all sizes.
(ONLY US RESIDENTS and currently has a limit of 60 days.)

Ripcord Evacuation Insurance is available for ALL nationalities.


 

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!

Every book a diary
Every chapter a day
Every day a journey
Refreshingly honest and compelling tales: the hights and lows of a life on the road. Solo, unsupported, budget journeys of discovery.
Authentic, engaging and evocative travel memoirs, overland, around the world and through life.
All 8 books available from the author or as eBooks and audio books



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 14:52.

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