Date: 09-11-25  Time: 03:37 am

Author Topic: Fault Codes  (Read 3179 times)

Stuajohnson79

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Fault Codes
« on: 19 July 2013, 07:02:09 pm »
Hi guys.

Does any one have any idea about the fault codes that the tacho shows up? I missed a gear change and hit the rev limiter. It wasnt a massive over speed by any means just touched 12,500 but the tacho dropped straight to 0, then 4, then 7 and carried on this sequence. It went away after restarting the engine.

elbrownos

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Re: Fault Codes
« Reply #1 on: 19 July 2013, 07:32:07 pm »
Speedo sensor apparently
http://foc-u.co.uk/wiki/index.php?title=My_Tacho_Needle%27s_Doing_Strange_Things
What is the speedo sensor? I have no idea

His Dudeness

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Re: Fault Codes
« Reply #2 on: 19 July 2013, 08:05:01 pm »
Hitting the rev limiter doesn't cause any problems except a drop in speed :lol. The yamaha service manual in the download section will tell you what the code means

darrsi

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Re: Fault Codes
« Reply #3 on: 19 July 2013, 08:09:25 pm »
The speed sensor is the unit that the leads go down to in the left side inner wheel hub.


0 and 4000rpm does suggest this, but i'm definitely not familiar with the 7000rpm reading?


My rev counter was giving 0rpm readings recently, then bouncing back to the actual rpm that the bike was doing, but Yamaha told me there was no such fault code.
I changed the TPS for a 2nd hand one and it sorted it all out.


Your 7000rpm reading is a bit of a spanner in the works  :look

elbrownos

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Re: Fault Codes
« Reply #4 on: 19 July 2013, 08:13:42 pm »
I think 7000 rpm is just his current engine speed. Bit over 80 in top gear, right?

darrsi

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Re: Fault Codes
« Reply #5 on: 19 July 2013, 10:16:20 pm »
I think 7000 rpm is just his current engine speed. Bit over 80 in top gear, right?

Yeah, that would make sense!

Stuajohnson79

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Re: Fault Codes
« Reply #6 on: 19 July 2013, 10:57:11 pm »
I couldn't tell you how fast I was going I'm afraid. The little tabs on the speed sensor have broken off so the Speedo stopped working, I do have one on order but I needed to use the bike today. I have a Speedo app on the phone that I was using but the phone overheated in my tankbag due to the hot weather we've been having. Comedy of errors I know. I guess the 7000 reading could be current speed as I'm pretty sure when slowing down for a round about the numbers changed. So have we deduced that 0,4, is an over speed indication or just that its clocked the Speedo wasn't working? It's been fine for the rest of the time and as I said reset after restarting the engine

darrsi

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Re: Fault Codes
« Reply #7 on: 19 July 2013, 11:01:30 pm »
"...the tabs on the speed sensor have broken off..."

Erm......that could be the problem then  :lol

Stuajohnson79

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Re: Fault Codes
« Reply #8 on: 19 July 2013, 11:11:01 pm »
"...the tabs on the speed sensor have broken off..."

Erm......that could be the problem then  :lol

As I said the tacho has been working fine without the speedo, and is again working fine. Just wondered if anyone knew what the fault code meant so I can look at it

darrsi

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Re: Fault Codes
« Reply #9 on: 20 July 2013, 04:21:26 am »
You have no speedo....sort it out!

Stuajohnson79

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Re: Fault Codes
« Reply #10 on: 20 July 2013, 09:00:08 am »
You have no speedo....sort it out!

Do you actually read anything before you comment

darrsi

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Re: Fault Codes
« Reply #11 on: 20 July 2013, 12:39:41 pm »
You have no speedo....sort it out!

Do you actually read anything before you comment


Okay, i'll give you that one, heavy duty week and a long night to let off steam, my bad  :b


If the tabs on your sensor have broken off then your tacho is highly unlikely to be working fine, hence the error code?
That's like saying you've lost both your arms but it's made no difference to your swimming.


I'll say it again, 0rpm then 4000rpm is a speedo sensor error code, and in the same breath you're telling us that your speedo sensor has broken lugs.


I'm not quite sure what more you'd like me to suggest, because you've told us the problem and the cause?


Also, the tacho did not drop, your rev counter needle did.
If your tacho dropped then you were riding backwards.




Stuajohnson79

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Re: Fault Codes
« Reply #12 on: 20 July 2013, 01:55:46 pm »
Right so 0,4 code is a speed sensor issue! Confused as to why it doesn't do it all the time then and just at the point I kit the rev limiter. Thanks for your input guys.

On another note, the tacho is the rev counter mate!

elbrownos

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Re: Fault Codes
« Reply #13 on: 20 July 2013, 03:20:25 pm »
I agree it's strange it only happens when you hit the rev limiter.
Can't think of any reason for that

darrsi

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Re: Fault Codes
« Reply #14 on: 20 July 2013, 03:24:08 pm »
Right so 0,4 code is a speed sensor issue! Confused as to why it doesn't do it all the time then and just at the point I kit the rev limiter. Thanks for your input guys.

On another note, the tacho is the rev counter mate!


Point taken, my apologies, i'm thinking odometer.  :rolleyes


Try a TPS check and see what it does.
Turn key on (don't start engine), unplug the TPS, then plug it back in and see where the rev needle goes, it should tell you what you need to know?

Skippernick

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Re: Fault Codes
« Reply #15 on: 20 July 2013, 03:58:42 pm »
Right so 0,4 code is a speed sensor issue! Confused as to why it doesn't do it all the time then and just at the point I kit the rev limiter. Thanks for your input guys.

On another note, the tacho is the rev counter mate!


Point taken, my apologies, i'm thinking odometer.  :rolleyes


Try a TPS check and see what it does.
Turn key on (don't start engine), unplug the TPS, then plug it back in and see where the rev needle goes, it should tell you what you need to know?


Come on get with the program Darrsi. :lol

Stuajohnson79

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Re: Fault Codes
« Reply #16 on: 20 July 2013, 04:09:36 pm »
I had tried the TPS thing on Wednesday and it gave me the 0 for 5 secs then 3 for 2 secs which I think is just telling the TPS is unplugged. Can't wait till my part turns up anyway and the bike seems to run fine

darrsi

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Re: Fault Codes
« Reply #17 on: 20 July 2013, 05:01:46 pm »
I had tried the TPS thing on Wednesday and it gave me the 0 for 5 secs then 3 for 2 secs which I think is just telling the TPS is unplugged. Can't wait till my part turns up anyway and the bike seems to run fine


If you plugged it back in and it read 3000rpm then that is saying a faulty TPS (or faulty wiring to TPS but unlikely).


If it was positioned wrong it would read 0rpm or 10,000rpm and would need adjusting.


If all was correct it would read 5000rpm.


Faulty speed sensor would read 4000rpm.

darrsi

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Re: Fault Codes
« Reply #18 on: 20 July 2013, 05:03:43 pm »
Right so 0,4 code is a speed sensor issue! Confused as to why it doesn't do it all the time then and just at the point I kit the rev limiter. Thanks for your input guys.

On another note, the tacho is the rev counter mate!


Point taken, my apologies, i'm thinking odometer.  :rolleyes


Try a TPS check and see what it does.
Turn key on (don't start engine), unplug the TPS, then plug it back in and see where the rev needle goes, it should tell you what you need to know?


Come on get with the program Darrsi. :lol


Didn't get in 'til 4.30am, a bit worse for wear, go easy on me i'm still suffering :crazy

Stuajohnson79

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Re: Fault Codes
« Reply #19 on: 20 July 2013, 07:31:13 pm »
I had tried the TPS thing on Wednesday and it gave me the 0 for 5 secs then 3 for 2 secs which I think is just telling the TPS is unplugged. Can't wait till my part turns up anyway and the bike seems to run fine


If you plugged it back in and it read 3000rpm then that is saying a faulty TPS (or faulty wiring to TPS but unlikely).


If it was positioned wrong it would read 0rpm or 10,000rpm and would need adjusting.


If all was correct it would read 5000rpm.


Faulty speed sensor would read 4000rpm.

Did it wrong then I didn't plug it back in while it was still on. Amature! ;)

Stuajohnson79

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Re: Fault Codes
« Reply #20 on: 20 July 2013, 09:56:59 pm »
I had tried the TPS thing on Wednesday and it gave me the 0 for 5 secs then 3 for 2 secs which I think is just telling the TPS is unplugged. Can't wait till my part turns up anyway and the bike seems to run fine


If you plugged it back in and it read 3000rpm then that is saying a faulty TPS (or faulty wiring to TPS but unlikely).


If it was positioned wrong it would read 0rpm or 10,000rpm and would need adjusting.


If all was correct it would read 5000rpm.


Faulty speed sensor would read 4000rpm.

Goes to 10 after being plugged back in. Is there an easy way to adjust or is it pretty straight forward anyway?

darrsi

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Re: Fault Codes
« Reply #21 on: 20 July 2013, 10:37:49 pm »
T25 tamper proof torx driver (with the hole in the middle).
Get bike up to running temperature.
Turn engine off then switch key back on.
Unplug TPS then plug back in so it goes to the 10k mark.
Undo 2 screws on TPS just enough to be able to pivot the unit.
Move it until you get it bang on 5000rpm, then tighten screws.

DO NOT TURN KEY TO OFF POSITION WHEN AT 10,000rpm.

You will regret it, 'cos the needle will drop clockwise, then you'll have to open up the clocks to manually push the needle back round.
It's not a major, just bloody annoying (twice in my case :rolleyes)

simonm

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Re: Fault Codes
« Reply #22 on: 21 July 2013, 06:53:49 am »
Right so 0,4 code is a speed sensor issue! Confused as to why it doesn't do it all the time then and just at the point I kit the rev limiter. Thanks for your input guys.

On another note, the tacho is the rev counter mate!


Point taken, my apologies, i'm thinking odometer.  :rolleyes


Try a TPS check and see what it does.
Turn key on (don't start engine), unplug the TPS, then plug it back in and see where the rev needle goes, it should tell you what you need to know?


Come on get with the program Darrsi. :lol


Didn't get in 'til 4.30am, a bit worse for wear, go easy on me i'm still suffering :crazy
You need more sleep then  ;).  We definitely don't need a dozey Darrsi on a motorbike !  Think of your health; we need alert foccers ;)

Stuajohnson79

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Re: Fault Codes
« Reply #23 on: 21 July 2013, 08:22:42 am »
Cheers darrsi, ill have a look at that today and report back later

darrsi

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Re: Fault Codes
« Reply #24 on: 21 July 2013, 10:51:49 am »
Right so 0,4 code is a speed sensor issue! Confused as to why it doesn't do it all the time then and just at the point I kit the rev limiter. Thanks for your input guys.

On another note, the tacho is the rev counter mate!







Point taken, my apologies, i'm thinking odometer.  :rolleyes


Try a TPS check and see what it does.
Turn key on (don't start engine), unplug the TPS, then plug it back in and see where the rev needle goes, it should tell you what you need to know?


Come on get with the program Darrsi. :lol


Didn't get in 'til 4.30am, a bit worse for wear, go easy on me i'm still suffering :crazy
You need more sleep then  ;) .  We definitely don't need a dozey Darrsi on a motorbike !  Think of your health; we need alert foccers ;)


My bike stays tucked away at weekends.
Friday night is play time for me.
I've had such a busy time at work recently, and then my local pub decided to extend the opening hours until 2am and it all kind of got the better of me. I could only do the decent thing and support this decision financially.  :b
I was a bit groggy yesterday to say the least, so apologies if i sounded a bit off.   :crazy