Just seen this thread, and having now read it i can understand what happened to me the other day wasnt my fault at all.

Having just bought my 2004 bike, and done less than ten miles on it, i set off from some lights and the bike just cut out on me. I had to pull in to the side of the road and wave the cars past that i had just filtered past :angry7:

I was mystified at the time. Not so now. Have to say though it doesnt surge at all.

So i have just verified my frame number and ECU number and they both point to the ECU been "faulty" - what are my next steps? The bike is now 9 years old - are Yamaha UK still up for changing ECU's at this age? Obviously a safety issue with the bike just cutting out which i'd like to cure asap :confused2:


Edited to say - just realised the bike also has a number "31" TPS still fitted which apparently can cause cutting out!


If the dealer route is a no-go, are there any "work arounds" i can do to help minimise the cutting out?

Cheers :)

Rich W, I would think there is a good chance Yamaha would update your ECU.
Why don't you ask them?

Hi Harry,

I have just spoken to Yamaha UK who have said there is only one recall on the bike and that is for the TPS. I will get the TPS changed and see where we go from there, the bike rides fine without surging, and so if i can cure this cutting out i will be happy (though to be fair it's only cut out once anyway).


:)

Let us know how you get on.

Can you have a good look at your TPS & give us the latest number off it?

Hi Kev, the number on the TPS is 313715 - the letters are faded but the first two are definitely 31 and from what i can gather that is the old faulty TPS.

The bike is going in tomorrow for the dealer to look at it; I spoke to Yamaha GB today who have said that the bike has already had the TPS changed, though by their own admission it wouldnt be the first they've come across where their records have been wrong. If it is an old faulty one they will replace it regardless.

Sorry I was not clear enough I was after the numbers on the new TPS.

Hi folks,

Well, this thread makes very interesting reading! I bought my 2005/6 XTX nearly 3 years ago, after having done some research into the bike. I had read that it suffers from surging, but I decided I'd see how it goes and would probably be able to ride around the issue. Sure enough, for the most part I can ride around the surging, though it's not ideal.

Of greater concern is the issue that it cuts out / stalls quite often, mostly when changing down gears. Thankfully it hasn't resulted in an accident (yet!) as I've been able to pull and hold the clutch in while restarting the bike. To be honest, I had wondered if it was something I was doing wrong, until this week when someone said there had been a recall on these bikes years ago. I wasn't aware of the recall when I was buying the bike, so I've been doing some reading and checking...

My frame number ends in 9112, so it's well outside the supposedly dodgy range, but it has the older -00 ECU:
http://i163.photobucket.com/albums/t...ps16566776.jpg

It doesn't seem to be one of the -00s with the white dot on the back:
http://i163.photobucket.com/albums/t...ps93efd132.jpg

I can't understand how this could have happened, if all bikes after 6257 should have had the -01 ECU.

I called the Yamaha dealer who sold me the bike and their records show that the TPS was replaced via the recall in November 2006. If I have understood correctly, this recall was supposed to have fixed the cutting out / stalling. But it clearly hasn't. The part number on the TPS a bit faded but I think starts with 46:
http://i163.photobucket.com/albums/t...psc765a12f.jpg

I took it off and can see clearly that it's the A1 version:
http://i163.photobucket.com/albums/t...ps88a3770d.jpg

So I'm left with a couple of questions...

Yamaha UK seem to be satisfied that the TPS has already been replaced (I'm not disputing that it was) so am I likely to be able to persuade them to replace it again, to the A2 version? I realise they've already changed the part, but it's no good if the new part doesn't fix the issue it was supposed to! The chap I spoke to at Yamaha UK wasn't familiar with the A1 and A2 versions.

Having spoken to the dealer who originally sold the bike from new, plus the dealer who sold me the bike, and also Yamaha UK, no-one can understand how my bike has the older ECU. With it being well outside the warranty period is there any chance I'll be able to persuade anyone to foot the bill for a replacement, on the basis that it should have had the newer one all along?

Finally, if I do get a replacement ECU will I also have to replace the ignition / immobiliser system?

Apologies for the long post, but I hope some of you very knowledgeable folks on here might be able to help!

Stuart

Odd about the frame number and ECU match?:eusa_think:

It is a relatively old bike though, so you (or Yamaha/the dealers) can never be 100% sure what's happened to it, or been fiddled with/changed over the years?

You've got nothing to lose in trying? If you don't ask the question you'll never know the answer!

Registering the keys/immobiliser to a new ECU is a straight forward job and only takes a few minutes, so no worries with that one.

Hello
 

Mine is below on both lots, do you have to pay for the replacement or is it covered? Or do you need warrenty etc, thanks!

It is a long time out of warranty, I do not like your chances.