The Yamaha Road Star Warrior Forum

Wanted to bump up the ECU using the great illistrated with photos directions I found awhile back, but all links to this are not working, anyone have this file they could repost, or detailed instructions that could serve as a substitute, Im sure it would be of great help to us newer members. thanks

http://www.rswarrior.com/forums/topic.asp?TOPIC_ID=11062&SearchTerms=ecu,adjustment

Here's how to do it.. TYhe link above makes it easy

do you want to save a few bucks while you wait for some more mods to be done?


There have been a lot of questions about the ECU and what can be done with it. This much I can say with certainity. The ECU can do far more than any single componant on the bike and the ability to manipulate it remains vastly untapped.
You will find on this site, instructions to adjust the settings when you add aftermarked air or exhaust. The thing you won't find is an exact science. What you get is the basics and it requires you to figure out the rest. If you get nervous easy, relax. If you write down the original settings before you start messing around, you can always put everything back to original settings. People ask me where they should start and to be honest, that's another huge variable but it's safe to move the ECU settings in increments of two (2) or more before riding and checking. Is the ECU a replacement for the PCIII or similar? nope. But it is a way to "get by" until you have the modifications you think you'll stick with to make the PCIII and a custom map worth the price.
Go ahead and play with the ECU, there is a lot going on there. As well as the ability to change some settings, it will give you a wide range of diagnostics. Take a look, it's an impressive piece of hardware.<br

This adjustment is cake. It's cheap, easy and not nearly as scary as lots of people think the first time they try it. You can litterally screw around all day with the ECU settings and if you remember where you started, put it back, no harm, no foul. Do NOT be intimidated, it's really simple and you will see how simple the first time you try it.
Here is how it works, if you have any problems, wing it, it's not like you're going to hurt anything. Remember though, you have to pull and ground a wire before you start and you have to plug the ECU back in before you can adjust anything. I make mention of this because I have gotten more than one person that forgot to plug the ECU back in after grounding wire #27 and couldn't figure out why it didn't do anything. I have also been contacted by people that forgot to plug wide #27 back in when they were done. Only once did somebody forget to reconnect the battery.

Locating the ECU for larger pictures, click on the small pictures

The Ecu is located under the seat, remove and locate the ECU

Using Screwdriver, lift the latch o­n the ECU and pull the ECU apart

Locate wires #27 and #29, should be yellow and orange, the numbers are o­n the side of the ECU. This is the ECU loop. If you look closely at the side of the ECU, you will see numbers that tell you what wires we're talking about here.

Wires #27 and #29 complete the ECU loop, for adjusting the ECU, you will o­nly need worry about #27

If you turn the ecu wiring clip over, you will see three securing tabs, you can press these in to allow the wires to pull from clip.

After pushing in white tab, you can at this point pull any wire loose in that segment of wires. Push the clip back when #27 is extracted from clip.

Using aligator clips attached to a length of wire, ground #27 wire to frame.

Ground #27 wire to frame and plug the ECU back in.

Hold both buttons and turn o­n bike. Continue to hold buttons down until the diag message appears.

After 8 seconds you should see the diag come up o­n your screen.

Push left button and CO should come up o­n your screen.

Push both buttons again and co:01 will appear o­n your screen

Push both buttons again and a number will appear below the co:01

At this point, you can adjust the numbers up and down by using the buttons. When you have moved the numbers whatever number you like, put everything back the same way you took it appart and test it out.
The o­nly way to check the adjustment is to ride and check plugs and readjust as needed. This is very simple o­nce you have done it o­nce. There is no need to fear experimentation as you can't really screw up much< I have heard that you can fry the ECU if you don't pull the power but I have never had this happen. Be dilligent, write down your starting point so you can go back if you feel like it. The settings of this is not much more complicated than setting a digital clock (once you get to the point where you can actually do an adjustment). Now, the first time I tried it, I just pushed buttons randomly until I finally got to a place where I could actually make a change. That works too.


Theres 13 pages on the search feature. This took 6 to find the info needed here..

Good on ya mike. That is what makes this site so good.

You just don't get better answer than that! Here is another link for ya.
http://www.rswarrior.com/forums/topic.asp?TOPIC_ID=26028

Thanks for the quick responce even if does seems to have a little attitude atached(LOL),great info and this will help a lot so thank you very much. However it is not a matter of searching. It was about a "dead link" it was about the directions posted by I think Washingtonwarrior with a walk through photo of each step, the link you provided was how to install a switch for a easy way to acsess ecu, nice to know but not what I was looking for, I love this site, but for some reason a lot of people who have been here a long time really seem to get upset at questions asked by us newer members, as someone very familar with doing searchs for info I undrstand the need for newbies to look before they ask, even if some of the searched and found info is several years old, with dead links or just plain outdated information. Would still love it if someone has the photo step by step post on a saved file. []

No attitude I just think that 13 pages and it took me six to find it that maybe we need to clean out some of the old posts with no real info and just allot of chat.. The chats good but can be disgaurded after saya month. Would make the search feature much easier on new people including myself

Agreed on that, I found hundreds of pages on a ECU related search and have been chasing down that particular one for a couple of days now, then found it and it said it had been hacked, I do thank you for the help, If you ever saw the posted info I am referring to, it was great! I wish I had saved it when I had a chance.[]

what exactly are you looking for. The above info should help you with any ECU adjustment

It will, I just liked the way the other was laid out, he had photos of the dash readouts,step by step pictures of what to do with each wire and it was just very photo detailed, your post answered all I need to do the adjustment. Sometimes when dealing with unfamilar items, photos tend to help. As with many of the mods on this site, sometimes a picture is worth a thousand words! I think Shag should be voted "Official mod videographer" how would we have ever visualized his fender spike mod without the pic's!

I saw that. *insert fake growl here* []

Don't forget the "Ratphlem Switch"!http://www.rswarrior.com/forums/topic.asp?TOPIC_ID=11062

WashingtonWarrior had it in his website, but it's down right now since a hacker got into it.[B)]

That sucks.

Yeah, it's was on my site, still there actually. I left a couple of openings I figured nobody would ever exploit because the site has no value to mess with. Never underestimate unsupervised children with too much time on their hands. I just hadn't thought of a good reason to get inspired to fix the site, I always thought of more interesting things to do (Gilligans Island marathons, three stooges marathons, watching paint dry for example). Maybe this is a good reason fix a couple of minor issues and get it back up.

I've got it on my web page also.
Got it from Washington Warrior several yrs ago.

http://19billh43.tripod.com/id77.html