Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
tt600 runs,dies, then wont start tt600 runs,dies, then wont start
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 Marc Gibaud, Clouds on Tres Cerros and Mount Fitzroy, Argentinian Patagonia

25 years of HU Events


Destination ANYWHERE...
Adventure EVERYWHERE!




Photo by Marc Gibaud,
Clouds on Tres Cerros and
Mount Fitzroy, Argentinian Patagonia



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10 May 2009
wolfzero's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2009
Location: uk
Posts: 434
check the valve clearances thats a comon prob for hot starting
sooty plug is def running rich have you checked the air filter is clean that will make it run rich and can make it stall
__________________
XT 630 SUPERMOTO

GSXR750L KMX200

RF900 & GSX400X Impulse Projects
3.9 V8 Rangerover
Reply With Quote
  #2  
Old 10 May 2009
Registered Users
Veteran HUBBer
  
Join Date: Jan 2007
Posts: 183
Have you taken out the carburetors out and looked inside?

Your problem might be a dirty carb. If you have the time and experience just take out the carb, open them up and give em a thorough cleaning. I use break cleaner for that kind of thing, but there are specialized cleaners for carburetors available.

If you can't be bothered, there's also fuel additives available which are supposed to clean the carb while running the machine. Worked for me once but I would not count on it.
__________________
Projekt Balkan
www.buebo.de - Der tägliche Wahnsinn
Reply With Quote
  #3  
Old 10 May 2009
Registered Users
New on the HUBB
  
Join Date: Mar 2009
Location: usa
Posts: 12
ok i will check the valves again, the air filters are new and not over oiled
both carbs are spotless in side.used 3 cans of carb cleaner 2 weeks ago
Reply With Quote
  #4  
Old 10 May 2009
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 5,680
I think you need to take your jets out and check what they are ?

Then get it all back to standard jetting with the needle on the right slot and the pilot screw set to default (2.5 turns I think - please check).

Then as long as your filter is clean, you should have a good base to start with.

Also it could be that its running really rich on the pilot screw/jet so it will only run at full throttle (lots of air getting in).

Personally I think its your pilot circuit or perhaps the vacumn could be sticking open. Did you check the diaphram and that the plunger falls again ??

Your valves and compression seem to be ok if it fulls full strengh at full throttle.
__________________
Did some trips.
Rode some bikes.
Fix them for a living.
Can't say anymore.
Reply With Quote
  #5  
Old 10 May 2009
Registered Users
New on the HUBB
  
Join Date: Mar 2009
Location: usa
Posts: 12
ok i know both of the main jets are are a #52 drill bit(.0635)
and i had to move the needles up 1 notch to get ride of the bog
and drilled out the main jets to get some more fuel.
the piolet jet says the right size on it

the reason for the change is i have 2 2inch x 4inch uni filters,bored it .040 larger and bumped it to 12:1 cr,and opened up the exhaust
Reply With Quote
  #6  
Old 10 May 2009
wolfzero's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2009
Location: uk
Posts: 434
go back to standard jet sizes then do a plug check a .40 oversize even with a high comp piston wont need a big jet change probably just up one size
__________________
XT 630 SUPERMOTO

GSXR750L KMX200

RF900 & GSX400X Impulse Projects
3.9 V8 Rangerover
Reply With Quote
  #7  
Old 10 May 2009
Registered Users
New on the HUBB
  
Join Date: Mar 2009
Location: usa
Posts: 12
the over sized piston didnt need much more fuel it was the fact that i am now using 2 air filters that flow more than the single filter that was on their and i opened up the exhaust so i can get more air in and out of the engine.
and as of right now it is running with an air fuel ratio of 13.5-14 to 1 so it actually wants a little more fuel at higher rpm's
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
86 tt600 wont start pleas help mikes6084 Yamaha Tech 5 22 Mar 2009 23:16
wont start triumph Yamaha Tech 2 11 Aug 2007 18:35
TT600R won't start(but once we tow it, it runs perfect) wonky Yamaha Tech 4 24 Nov 2006 16:00
LC4 just wont start leslyrix KTM Tech 6 21 Mar 2006 00:59

 
 

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
New York: October 9-12 NEW!
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 22:27.

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