Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
90 xt 600 idle question 90 xt 600 idle question
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 Hendi Kaf, in Cambodia

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


Photo by Hendi Kaf,
in Cambodia



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 18 Mar 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
90 xt 600 idle question
My bike runs great, but the problem is the idle goes up alittle. However when I hit the throttle the idle goes down. Now I checked the cables and she returns back good. I rebuilt carbs and instslled new intakes and orings cause they were bad .Any hep would be appreciated thanks again
Reply With Quote
  #2  
Old 21 Mar 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
No responce yet
Reply With Quote
  #3  
Old 21 Mar 2013
Registered Users
Veteran HUBBer
  
Join Date: Nov 2009
Location: christchurch newzealand
Posts: 384
Sounds like your cable is too tightly adjusted, there should be one or two mm free play before the engine speed rises,loosen the adjuster under the tank to give it more free play....maybe this will solve the problem....
Reply With Quote
  #4  
Old 21 Mar 2013
Registered Users
Veteran HUBBer
  
Join Date: Apr 2011
Location: Southampton, England
Posts: 110
After you have checked the cables I think you need to check the mixture.

If the pilot screw was adjusted while the bad "intakes" were on you will probably now be running very rich. (I know running lean on mine has the opposite effect to what you are getting).

Warm it up and turn the pilot screw in 1/4 to 1/2 a turn. If the tickover increases you are running rich. If it decreases you are running lean and need to turn it out instead.

Keep adjusting it until you get maximum tickover. (Take care not to turn it out too far - at about 7 turns out it will drop out).

I think stock should be 2 to 2 1/2 turns out.
Reply With Quote
  #5  
Old 22 Mar 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
The throttle hits the cm stop when she returns. Maybe I will try to play with it again. No w I took off the carb and manifold rebuilt everything then I djusted everything thanks agin
Reply With Quote
  #6  
Old 6 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
Which way to turn the pilot in or out? The bike seems to run great . Just a pain in the butt that I have to give it a quick hit on the throttle to bring it down. The idle goes up about like 500 to 700 rpms I did check the slack in the cable and the cam where the throttle is and she is not hanging up I still need your help thanks again. If I take the carb off again is there anyhing that I should be looking for?
Reply With Quote
  #7  
Old 6 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Apr 2011
Location: Southampton, England
Posts: 110
The pilot jet is an air jet on the XT. So screwing in makes the mixture lean and screwing out makes it rich.

2.5 turns out seems to be about right if everything else is OK.

If you are taking the carbs off it might be worth checking the current setting before you change anything. If you are 5 turns out A) you know something isn't right and B) you know where you are staring from.

Turning it all the way to the stop and counting as you go is a monumental pain with the carbs in place and the risk of loosing count is major.

Alternatively you can do it with the carbs in place and not knowing where you are starting from. With the engine warmed up turn it in half a turn. If the tickover picks up you are heading in the right direction. Keep going until the tickover starts slowing back down. Then back of 1/4 to 1/2 a turn.

If the tickover slowed down when you turned it in then turn it out instead.

Go in 1/4 or 1/2 turn steps and keep track so you can set it back to where you started if it doesn't work.

Good luck - and don't burn yourself on the hot engine.

Edit - not sure of my logic in the first sentence but the direction is right. In for lean and out for rich.
Reply With Quote
  #8  
Old 7 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
Thanks for the quick reply. So basically I just turn in the pilot screw in or out until the idle changes, then set in the middle between the high idle and the low idle. Also thanks again for warning me not to burn myself because it is kind of tight there
Reply With Quote
  #9  
Old 7 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Apr 2011
Location: Southampton, England
Posts: 110
Sorry if I confused you... You need to set it at maximum revs.

(The tickover gets dragged down by being either too rich or too lean - maximum revs is where it is right).
Reply With Quote
  #10  
Old 7 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
Be sure to set the idlespeed lowish for the test, if its set too high you wont notice any differences.
Reply With Quote
  #11  
Old 7 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
I just also noticed that the hose from the air cleaner to the motor is kinked pretty bad I was wondering would that have anything to do with the high idle too thanks
Reply With Quote
  #12  
Old 7 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Nov 2009
Location: christchurch newzealand
Posts: 384
no dont thinks so....I thinks its just a breather from the engine ....
Reply With Quote
  #13  
Old 12 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: nj usa
Posts: 170
I amsorry tickover means what thanks
Reply With Quote
  #14  
Old 12 Apr 2013
Registered Users
Veteran HUBBer
  
Join Date: Apr 2011
Location: Southampton, England
Posts: 110
Tickover = idle. Sorry.
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
Yamaha XT 600 personalization Zergman Yamaha Tech 181 7 Aug 2024 17:56
r100 stupid question about mixure screws paulc BMW Tech 8 27 Nov 2018 03:09
Question about TT/XT Carbs panterg Yamaha Tech 16 27 Jun 2012 22:04
Transalp 600 to KLE rlkat Kawasaki Tech 3 21 Dec 2011 15:00

 
 

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 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 06:49.

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