Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Programmable TCI unit for the XT600E Programmable TCI unit for the XT600E
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 George Guille, It's going to be a long 300km... Bolivian Amazon

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


Photo by George Guille
It's going to be a long 300km...
Bolivian Amazon



Like Tree2Likes

Reply
Page 4 of 5 123 4 5
 
LinkBack Thread Tools Display Modes
  #46  
Old 3 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
There's more to it than that.
Reply With Quote
  #47  
Old 3 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
No, that is all there is to it. You are just changing the time in the combustion cycle when the sparkplug fires and the effect that has on burn pattern and efficiency of the fuel igniting before top dead center arrives. Everything else remains the same. Your power improves through more complete and efficient use of the gas in the cylinder. There is no increase in gas consumption except that caused by your wrist. However , on a fuel injected motor with oxygen sensors it would be different. The ecu would be changing the injectors output and duration to keep the oxygen sensors happy with your fuel to air ratio. Thus more power = more fuel. THUMPTHUMP
Reply With Quote
  #48  
Old 3 Jun 2014
xtrock's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Norway
Posts: 1,325
So now you have the 86 curve for the 3TB model? Is it then possible to use the CDI unit on the 3TB with modification to the connection? And why did they change the curve if the old one was better for the bike?
Reply With Quote
  #49  
Old 3 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
The systems are very different. The CDI in the old bike builds a charge in the engine and releases it to the coil. CDI capacitor discharge ignition. The TCI in the new bike Builds the charge in the coil. Its more than the connection. They usually do things like that because of emission requirements that change with every administration. Blame it on California. Until you get into modern ECUs and fuel injection technology more power usually resulted worse emissions. That's why carbureted bikes that were street legal got heavier and slower . They always compensated with more displacement. THUMPTHUMP
Reply With Quote
  #50  
Old 4 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
You hit partially on why mileage will decrease a bit,how much ? can't say, there are several ways for it to. You have to think of how gas usage is figured and what causes a motor to use more. Unless it is computer controlled.
Reply With Quote
  #51  
Old 4 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
Just the tip of the ice burg. I just want to know how far till I'm pushing. THUMPTHUMP
Reply With Quote
  #52  
Old 4 Jun 2014
G600's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2009
Posts: 235
Quote:
Originally Posted by xtrock View Post
.. And why did they change the curve if the old one was better for the bike?
Regulation thing no doubt. For example, the TTR600 was a performance bike to a degree, it had a modified XT600E engine. No e-start, narrower engine, lighter crankshaft, blah blah..but basically a XT600E engine.. and it had a CDI ignition box. That box had a wire that could alter the ignition map from soft ( as delivered and complying with regulations) to performance. I am told the difference was very noticeable.

Looking forward to getting my tci from hpi
__________________
----------
Yamaha XT600E '01, Honda XR400 '03, Yamaha XT550 '83
Reply With Quote
  #53  
Old 4 Jun 2014
xtrock's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Norway
Posts: 1,325
Anyone compared the aftermarked unit to the stock? Just wonder if they only swap a chip inside, maybe possible to send one of my units for upgrade.
Reply With Quote
  #54  
Old 4 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Sep 2012
Location: Middle USA
Posts: 349
I asked Borut at Zeeltronic about the possibility of using an existing unit he already has built that runs on 12dc instead of the CDI charging type stator and tailor it to the newer xt with TCI ignition. The coil would have to change to the older type but the 12 volt powered CDI would work just like the Stator Power CDI when it fired. He didn't like that idea as he wanted (and is now designing a TCI replacement) use the stock coil and wiring as much as possible to make it easy to hook up. Some of us have the skill to hook up about anything and MAKE it work but most would rather have a plug and play. Makes sense from a marketing standpoint. It will be interesting to see how it turns out as more will be opting for the HPI unit with the older advance curve. Having more aftermarket units out there for us is a good thing.
Steve
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
Reply With Quote
  #55  
Old 25 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
Hi, just got my new cdi with 86 map for my 2003 model. It idles fine, but it seems to get noisy under load, from about 4000rpm, dont know if its pinging or not. I'll change the cdi back to stock and compare.

Im really bummed, cant really feel an increase in power. I shouldn't have to rejet or anything, so dont know whats up.....
Reply With Quote
  #56  
Old 25 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Mar 2013
Location: cajah's Mountain N.C.
Posts: 124
I switched to air pods and am running a 135 main , 48 pilot, and have tt slide needles raised to the highest setting[clip at lowest position], in the primary carb. The secondary carb has a 130 main and the tt slide needles also at the highest setting. Take the side off your box and jet up. This motor needs air and more fuel to take advantage of the timing change. This is what I did to my 86 to get the improved performance. My 90 is set up the same way with the 86 curve.THUMPTHUMP
Reply With Quote
  #57  
Old 25 Jun 2014
G600's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2009
Posts: 235
Quote:
Originally Posted by Jens Eskildsen View Post
Hi, just got my new cdi with 86 map for my 2003 model. It idles fine, but it seems to get noisy under load, from about 4000rpm, dont know if its pinging or not. I'll change the cdi back to stock and compare.

Im really bummed, cant really feel an increase in power. I shouldn't have to rejet or anything, so dont know whats up.....
+1 almost 100%. My 2000 idles a little higher, gets noisier under load and runs rougher. I went back to stock and like it better, the bike runs smoother.

I do think the 1986 curve gives a little more power at mid-high rpms. But it is not much and not worth it IMHO, I like the smoothness of the stock unit.

My bike is stock, except for the airbox snorkel and a little bit better flowing (stock) exhaust (muffler insert slight mod).
__________________
----------
Yamaha XT600E '01, Honda XR400 '03, Yamaha XT550 '83
Reply With Quote
  #58  
Old 25 Jun 2014
xtrock's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Norway
Posts: 1,325
Waste of money!
Reply With Quote
  #59  
Old 25 Jun 2014
G600's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2009
Posts: 235
Quote:
Originally Posted by xtrock View Post
Waste of money!
Yeah I guess so. Do you also have a unit?



Unless one is going to modify his bike like thumpthump has done.


Well.. win some lose some..
__________________
----------
Yamaha XT600E '01, Honda XR400 '03, Yamaha XT550 '83
Reply With Quote
  #60  
Old 26 Jun 2014
Registered Users
Veteran HUBBer
  
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
I was expecting something like this:

Quote:
Originally Posted by THUMPTHUMPTHUMP View Post
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.

Instead I spent a couple hundred, and my bike now runs worse, I feel screwed. Dont think jetting will solve it, but after spending that amount of money, I feel like i have to make it work, but I really dont feel like spending hours in the garage, when this should be plug'n'play....Soooo eeh....fingers crossed. But Im really bummed.

Currently/when I testdrove Ive got the needle in the maincarb raised one notch, and a #48 idle jet, otherwise stock. Thats with bigger diameter headers, laser produro exhaust, KN filter (in original airbox) and snorkel in airbox removed.
Reply With Quote
Reply
Page 4 of 5 123 4 5

« 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
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!

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 09:53.

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