 |

19 Mar 2009
|
Registered Users
HUBB regular
|
|
Join Date: Jun 2007
Location: Adelaide
Posts: 40
|
|
Engine stutter at high speed
G´day all.
Touring south america with a 2003 KLR650 with only 6K on the clock and in need of advice. When I roll on the throttle at high speed (120 km/h) I get what is best described as a ´bunny hop´ effect, which feels like the engine cutting out or stuttering. It only occurs at speeds +120. Has anyone experienced this or could suggest some troubleshooting steps.
Initially regulator was the suspect and changed, but problem still remains. Travelling with a mate on a 1993 KLR650 and we both recently did a pass of about 4500m. His bike had few problems with the altitude, aside from a little loss of power, while for me it was a real effort to keep the bike rolling, perhaps suggesting some carby issues?
Thanks in advance.
kind regards
|

19 Mar 2009
|
Registered Users
Veteran HUBBer
|
|
Join Date: Sep 2008
Location: England
Posts: 152
|
|
Just a guess but are the post 1997/98? klr's jetted leaner to meet emissions this would possibly explain the stutter
|

20 Mar 2009
|
 |
Registered Users
Veteran HUBBer
|
|
Join Date: Mar 2008
Location: Oztralia
Posts: 646
|
|
Yes, definitely sounds like a jetting issue if the stutter is only occuring at altitude.
The first thing I'd be doing would be to compare main and pilot jets, needles, needle positions and pilot screw adjustments between the two bikes.
I do recall when I was up in the Andes that I had breathing problems in all gears at anything above 6ish, so no surprise here.
Garry from Oz.
__________________
Garry from Oz - powered by Burgman
|

4 May 2009
|
Registered Users
HUBB regular
|
|
Join Date: Jun 2007
Location: Adelaide
Posts: 40
|
|
update
Thanks for the time in reply, much appreciated.
I changed the air filter and cleaned the carby and it did make a big difference. Still painful at altitude and the real problem lies in the carby jetted too lean. I have not got around to drilling a hole to get to the mixture screw (really silly design)....no other complaints with the bike though.
Kindest regards
|
Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
|
|
Thread Tools |
|
Display Modes |
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
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)

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!

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!
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.
|
|