Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Kawasaki Tech
why would a bike only run poorly after a half hour run? why would a bike only run poorly after a half hour run?
Register FAQ Calendar Search Today's Posts Mark Forums Read
Kawasaki Tech Kawasaki Tech Forum - For Questions specific and of interest to Kawasaki riders only.
Photo by Lois Pryce, schoolkids in Algeria

25 years of HU Events


Destination ANYWHERE...
Adventure EVERYWHERE!




Photo of Lois Pryce, UK
and schoolkids in Algeria



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 5 May 2009
Registered Users
HUBB regular
  
Join Date: Jan 2009
Location: kent
Posts: 74
why would a bike only run poorly after a half hour run?
my kle runs fine and ticks over, starts no problem, but after a half hour run it just keeps cutting out. it starts again and putting the choke on seemed to help it get going again, which i suppose might be a fuel starvation thing? but have tried everything i can think of, have had the tank off, the fuel tap apart, the carbs off. have wd40ed the cut out switch and ignition, checked the breather pipe, spark plugs, hd leads and plug caps . . .
has anyone any ideas please?
i got to get to work.
Reply With Quote
  #2  
Old 5 May 2009
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 5,679
You had the carbs off but have you cleaned the jets out or cleaned the float valve ??

Sounds like fuel starvation to me too.


Check all your tank breathers and carb breathers for blockages or kinks.

Do you mean it cuts out after 30 mins of normal riding ???
__________________
Did some trips.
Rode some bikes.
Fix them for a living.
Can't say anymore.
Reply With Quote
  #3  
Old 5 May 2009
Registered Users
HUBB regular
  
Join Date: Jan 2009
Location: kent
Posts: 74
hi, yes I did check the jets and float valve - they were immaculate, unless i missed something. I have checked the tank breathers, gonna look in the manual and see if i can locate the carb breathers so i canb have a look.
it does run normally for around thirty minutes, (yeah just normal riding up the A2) then just dies, and struggles to start even with a bit of choke on, but will start again and run normally after it cools down again. it's only an 07 plate. it has recently been pushed over and i recently changed the air filter for a dna air filter and recently replaced spark plugs - it has never run right since so i put the old air filter back in this evening. checked i had got the right spark plugs, took the carbs off etc etc.
drving me up the wall it is!
might get a push bike.
help!!
Reply With Quote
  #4  
Old 5 May 2009
Nigel Marx's Avatar
Super Moderator
Veteran HUBBer
  
Join Date: Oct 2000
Location: South Island, New Zealand
Posts: 799
Elec-Trickery
It could be electrics, as much as I hate to throw another veriable into the mix. There are a number of componates, even down to board level, that could turn up their toes when they get hot and then start working again. The big problem with this sort of fault is the onloy way to really test is to find a complete set of known good, and start to swap out parts.
I would start with the obvious, like spark coils and generation coils, then the CDI unit.

Regards

Nigel in NZ
__________________
The mouth of a perfectly contented man is filled with . -- 2200 BC Egyptian inscription
Reply With Quote
  #5  
Old 6 May 2009
Contributing Member
Veteran HUBBer
  
Join Date: Feb 2005
Location: Australia
Posts: 131
Greetings Nathan

I don't know the KLE very well (instant disclaimer :-)

But something else that could be causing your problem is if the fuel tank vent is blocked this causes a semi vacuum in the tank. If that happens it will cause the bike to fuel starve after being ridden for a while. To check if that's the cause open the fuel cap when the bike starts to cut out it will equalise the air pressure in the tank.

Good Luck

Ian J
__________________
Always have plan B, and maybe plan C
www.travelswithkitty.com
Reply With Quote
  #6  
Old 6 May 2009
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 5,679
Nigel could be right...

As the components heat up they can start to perform badly if they have a fault. Ignition coils are the usual culprit and the regulator/rectifier.

You say it has NEVER been right ?? Did you buy it second hand with this problem ?

It it runs perfectly for 30 mins of normal riding, I think you can pretty much rule out incorrect jetting or mixture.

FYI, choke on a hot bike will only make things worse... (or it should do).

When the float valve was cloggod on my XT600E, it would only run on the choke as it was a seperate input.

Do you have the tools and means to check your coil and regulator ???

Does the starter motor turn over strongly at ALL times ???
__________________
Did some trips.
Rode some bikes.
Fix them for a living.
Can't say anymore.
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
Display Modes
Hybrid Mode Hybrid Mode

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
Bangkok and the 7 hour customs ordeal Hornet600 West and South Asia 0 26 Mar 2009 08:07
Half Safe Alexlebrit Travellers' questions that don't fit anywhere else 2 6 Jun 2008 13:47
Convincing the other half!! hobospy Travellers' questions that don't fit anywhere else 9 15 Sep 2007 08:19
Leaving the better half behind... crazymanneil Travellers' questions that don't fit anywhere else 10 31 Jul 2007 08:47

 
 

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: Aug 22-24
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 03:19.

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