Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Ellen Delis, Lagunas Ojos del Campo, Antofalla, Catamarca

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


Photo by Ellen Delis,
Lagunas Ojos del Campo,
Antofalla, Catamarca



Like Tree2Likes

Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 23 May 2014
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
Hey, thanks for the info. I do have a 135 main and 130 secondary from a set of TT carbs. As far as I can tell the XT and TT carbs are the same except for the jetting. I put XT jets in and am running the air box. Since I have the zeel, no over rev.
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
  #17  
Old 23 May 2014
Registered Users
Veteran HUBBer
 
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
You will need the adjustable slide needles from the tt carb. The xt's do not have the clip slots. Try it with the side off the air box. This setup needs lots of air. The stock box was the restriction in getting the top end power. I have only gone to 6800 ft. That is the highest point on the east cost. It is about an hour from me. It will be way too rich for 10,000 ft. THUMPTHUMP
Reply With Quote
  #18  
Old 23 May 2014
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
I think one set of of the two carb sets I got was from a TT as it was jetted 135 main and 130 secondary. I did not know about the adjustable needle differences. Makes sense since it was for street use and the adjustable jet had the brass plug as well.

Any outward sign of a TT carb? I have both sets installed now but do not know which set was what I think was TT carbs.

Steve
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
  #19  
Old 24 May 2014
Registered Users
Veteran HUBBer
 
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
TT carb has a manual choke lever and the xt carb uses a cable to the handle bars. The tt has adjustable needles , the xt does not. The TT usually comes with 135/135 main jets and the xt usually has 125/130 main jets. The rest is the same. The pilot jets vary from 46 to 48 depending on the year. THUMPTHUMP
Reply With Quote
  #20  
Old 31 May 2014
Registered Users
Veteran HUBBer
 
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
My ignition box with the 86 curve for my 90 xt600e came in today. I plugged it in and it runs. I am off tomorrow and will see how it does with all the extra advance. I did a top speed run a couple weeks ago and will try it again at the same place. THUMPTHUMP
Reply With Quote
  #21  
Old 31 May 2014
G600's Avatar
Registered Users
Veteran HUBBer
 
Join Date: May 2009
Posts: 235
Quote:
Originally Posted by THUMPTHUMPTHUMP View Post
My ignition box with the 86 curve for my 90 xt600e came in today. I plugged it in and it runs. I am off tomorrow and will see how it does with all the extra advance. I did a top speed run a couple weeks ago and will try it again at the same place. THUMPTHUMP

__________________
----------
Yamaha XT600E '01, Honda XR400 '03, Yamaha XT550 '83
Reply With Quote
  #22  
Old 31 May 2014
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
anxious to hear your results...
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
  #23  
Old 31 May 2014
Registered Users
Veteran HUBBer
 
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
Quote:
Originally Posted by THUMPTHUMPTHUMP View Post
My ignition box with the 86 curve for my 90 xt600e came in today. I plugged it in and it runs. I am off tomorrow and will see how it does with all the extra advance. I did a top speed run a couple weeks ago and will try it again at the same place. THUMPTHUMP

I'm hoping it works, I have a "e" motor that'll be getting this option , soon. 28deg advance is pretty anemic .
Reply With Quote
  #24  
Old 1 Jun 2014
Registered Users
Veteran HUBBer
 
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
Well, I went riding in the mountains today and put about 200 miles on it. The improvement over the stock ignition is very noticeable. The throttle response is much better, the power down low is better , the transition through the middle got rid of the flat spot were the second carb comes in, and finally a surge of power on top to the rev limiter instead of flattening out. It revs out much quicker and you have to shift quick to stay off the rev limiter. It gets to 100 mph much sooner than before and is held there due to gearing and the rev limiter. Over all a great success. The only strange thing so far is it runs for about 2 seconds after you hit the kill switch before it dies. It does die immediately when the key is switched off. The idle was much faster than before I changed it out with the stock one and had to turn it down a little. I rode at altitude most of the day 3000-4500 feet and had good improvement , but when I headed home down to about 1000 ft it went much faster with more air. If anyone is interested let me know and I will tell you who to contact there to get this done. I have already sent him the map for the 86 that was loaded into mine. THUMPTHUMP
Reply With Quote
  #25  
Old 1 Jun 2014
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
I am happy your were able to use the 86 curve and have such good results. HPI will probably sell lots of those TCI's with that advance curve in it.

I think the reason the zeeltronic works so well is that you do get the actual 36 degrees of advance you program. Who knows what the OEM and aftermarket analog CDI's actually advance to.

Good show....

Steve
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
  #26  
Old 1 Jun 2014
Registered Users
Veteran HUBBer
 
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
The Oem and aftermarket are digital for these bikes (TCI, not cdi) , the stock is 28deg advance, probably aftermarket copied that limit(unless they take a motor apart for each model, they don't know if it can take more ). The one he bought is from HPI . As you know, Zeeltronic doesn't make one for these models.
Reply With Quote
  #27  
Old 1 Jun 2014
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
Yep, I read that earlier that he needed an advance curve for the earlier models to send to HPI.

I don't think Borut is going to bother building one for the TCI since there is already a digital version out there.

I am happy he could use the 36 degree curve to good use. I guess they did not move the trigger coils so that allows for full advance
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
  #28  
Old 1 Jun 2014
Registered Users
Veteran HUBBer
 
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
Why wouldn't he make the newer one? Multiple sources is what keeps prices down. There is a lot of the "e" models out there, just not in the states.
Reply With Quote
  #29  
Old 1 Jun 2014
G600's Avatar
Registered Users
Veteran HUBBer
 
Join Date: May 2009
Posts: 235
Quote:
Originally Posted by THUMPTHUMPTHUMP View Post
... If anyone is interested let me know and I will tell you who to contact there to get this done. I have already sent him the map for the 86 that was loaded into mine. THUMPTHUMP
PM sent. THANKS once again
__________________
----------
Yamaha XT600E '01, Honda XR400 '03, Yamaha XT550 '83
Reply With Quote
  #30  
Old 1 Jun 2014
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
I have repeatedly asked Borut about it and last conversation he said it would not pay him to do it. I'll bump him again, especially since the older advance curve really wakes up the bikes. Many might convert to get the boost.

Steve
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
Reply


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
97' XT600E start failing / starting circuit cutoff relay p/n ? jamesahkXT600e Yamaha Tech 1 9 Jun 2012 02:43

 
 

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

HU Event and other updates on the HUBB Forum "Traveller's Advisories" thread.
ALL Dates subject to change.

2024:

Add yourself to the Updates List for each event!

Questions about an event? Ask here

HUBBUK: info

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...

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!

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 05:26.