|
14 Jan 2009
|
Registered Users
HUBB regular
|
|
Join Date: Nov 2008
Location: Colorado, US
Posts: 57
|
|
Stock jetting question
Is the stock jetting suitable for elevations ranging from 5500 to 9000 ft? I felt the bike was running a little hot at 5500-6000 ft. with normal commuting and a bit of highway riding. I am wondering if I should raise the needle a notch or increase the main jet size? I think the pilot is fine, if not a bit big at a #48 size for my elevation. What do you guys think? Is the needle in these carbs adjustable or do you need to buy a spacer to raise it?
Edit: Everything is stock on the bike, including exhaust, airbox, jetting etc...
Thanks!
Alfredo
|
14 Jan 2009
|
Registered Users
HUBB regular
|
|
Join Date: Jun 2008
Location: Pietermaritzburg
Posts: 63
|
|
Higher elevation = less air = runs rich.
|
15 Jan 2009
|
Registered Users
Veteran HUBBer
|
|
Join Date: Jan 2001
Location: Stockholm
Posts: 651
|
|
Defenitely not
But there is also no reason to panic.
Remember, the jet size is not that important - only determines full throttle mixture. It is the needles that deterine the mix between idle and full throttle.
Do not raise the needles - this enriches - lower it one or two notches. To check the mix for correctness at that altitude, a dynojet run is needed, or the less precise method of plug chopping, but that only works with leaded fuel.
As to idle jet, do not worry to much (yet) on the size - you can adjust the idle mix with the adjustment screw. See my numerous other posts .... :-)
Auke
|
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
|
|
|
Similar Threads
|
Thread |
Thread Starter |
Forum |
Replies |
Last Post |
XR650L Jetting question
|
tam |
Honda Tech |
10 |
20 May 2008 01:19 |
klr 650 jetting
|
timwright2 |
Kawasaki Tech |
1 |
5 Oct 2005 13:13 |
Jetting
|
cris collins |
Yamaha Tech |
0 |
22 Sep 2001 02:50 |
jetting
|
cris collins |
Yamaha Tech |
0 |
21 Sep 2001 08:49 |
|
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.
|
|
|