Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Kawasaki Tech
KLR600 misfiring KLR600 misfiring
Register FAQ Calendar Today's Posts
Kawasaki Tech Kawasaki Tech Forum - For Questions specific and of interest to Kawasaki riders only.
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



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 3 Nov 2006
Registered Users
New on the HUBB
  
Join Date: Oct 2006
Location: London
Posts: 5
KLR600 misfiring
I have a KLR600 '87. Following an engine rebuilt it ran fine with plenty of power. Now it starts missing at around 4500 revs and won't rev any higher than 5000. It also backfires badly when I rev then let the throttle off. I have changed the CDI and carb pin and spark but these have not made any difference.

I'd be grateful if anyone has any ideas about this problem and also about what parts I might get to solve it. Could it be a value problem?

The bike lives in Kenya and I'm in the UK so I need to take any parts with me next time I go there as I can't get anything for it once there.

Thanks
Christian
Reply With Quote
  #2  
Old 3 Nov 2006
Bal Bal is offline
Registered Users
New on the HUBB
  
Join Date: Sep 2003
Location: Baden, CH
Posts: 14
Hi there,
i had a similar problem after a carb rebuild in which i changed the float height. the remedy was to reduce the height of the float (i.e. more fuel in chamber before cutting off fuel supply).
hope this helps,
bal
Reply With Quote
  #3  
Old 3 Nov 2006
Registered Users
HUBB regular
  
Join Date: Nov 2003
Location: Norman Oklahoma,USA
Posts: 34
Sounds like a complete cleaning of the carb may be in order especially if the bike has sat for a long time.
Also, I'm not sure if the KLR 600 has a vacuum actuated petcock, but the diaphram could use a look if it has one.
Good luck,
Rod
Reply With Quote
  #4  
Old 3 Nov 2006
Registered Users
New on the HUBB
  
Join Date: Oct 2006
Location: London
Posts: 5
Many thanks. Carb problem seems to be the consensus. Would the backfire likely be part of the same problem? I have a hazy idea that backfiring happens when the mixture is ignited too late or something.....

Christian
Reply With Quote
  #5  
Old 6 Nov 2006
Registered Users
Veteran HUBBer
  
Join Date: Apr 2003
Location: Cape Town, South Africa
Posts: 303
From the backfiring I take it that there is one cause which might be a leaking needle valve. Make sure that the little spring damper inside the needle moves freely as otherwise the needle might leak only when the bike is running / vibrating. The backfiring is usually caused by the engine running too rich when you close the throttle and the bike is "pushing".
You can cut out the float position as this would have caused problems from word go. Leaves a faulty or sticking float needle valve or just dirt in your carb for a cause.
Ignition problems on CDI bikes are extremely rare. Sometimes they just die. (Popped capacitor) Very rarely they have temperature related problems with broken soldering on the circuit board.
Reply With Quote
  #6  
Old 6 Nov 2006
Registered Users
New on the HUBB
  
Join Date: Oct 2006
Location: London
Posts: 5
Thanks Lecap.

So if I were to get parts in the UK to take out to the bike, spring damper, needle valve and diaphragm might help (the needle is new already). Anything else other than a good clean of the carb?

As I failed to mention earlier the bike starts, idles and runs at low revs perfectly.

Cheers
Xtian
Reply With Quote
  #7  
Old 15 Nov 2006
Registered Users
Veteran HUBBer
  
Join Date: Apr 2003
Location: Cape Town, South Africa
Posts: 303
Don't worry about the diaphagm. If it would be torn you would not get anywhere near 4500 rpm. The spring loaded damper is a little pin on the reverse side of the float valve needle. The float valve needle comes as one and if you replaced it it should be fine. If the damper in the needle is stuck a good wash of the needle with carb cleaner usually does the job.

Make sure you have the correct spark plug.

Make sure your air filter is clean and intact.

Also clean the carb nicely as they accumulate a lot of gunk around the diaphagm and slide over the years.
Reply With Quote
  #8  
Old 15 Nov 2006
Registered Users
Veteran HUBBer
  
Join Date: Feb 2006
Posts: 1,598
Quote:
Originally Posted by lecap
Don't worry about the diaphagm. If it would be torn you would not get anywhere near 4500 rpm. .
Take a diaphram and carry it as a spare if nothing 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
KLR600 for Trans Africa bikerfromsark Which Bike? 4 5 Nov 2006 10:36
KLR600 any good? Eduard Kawasaki Tech 3 30 Jun 2006 01:34
Misfiring Dommie Sime66 Honda Tech 1 26 May 2006 00:07

 
 

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. 11-14
  • 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 07:42.

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