Speedo clock

[Madmuffet]

Hi, fairly new to the site so this may already been covered, just noticed while riding back from a rally that the speedo has started flickering and giving an inaccurate reading, is this a common problem ? Is this easy to sort out or is it a remortgage the the house time. Does anyone have any tips to try before the lump hammer comes out  😩

[virginiajim]

Not that it matters much, but it might be helpful to tell us the year of the bike.  Are you talking about the gear position as in 1, N, 2, 3, 4, 5, OD?  If so, then yes.  The gear position sensor on the left lower side of the bike is starting to go out.  Mine is doing it now.  If something else entirely, then no.  It's not common.  Welcome to the forum, BTW!

[O.C.]

Like my dad Jim  says      

Pop into the intro section and fill us in with some more details about yourself   

[Madmuffet]

Sorry am not used to the forum yet and am still getting the hang of it, its a ZGT1400 CCF 2013  and the problem is with the MPH clock, it has suddenly developed a flicker ( similar to an old 2 stroke rev counter ) i just wondered if this was a known problem and if not did anyone have an idea as to what could be the cause. Thanks

[virginiajim]

Not sure for over in the UK, what's the warranty there?   Did you buy the bike used?  Private or dealer?  Our speedo is analog and uses a dial indicator so I don't understand the 'flickering' issue you are having.  The clock is digital (has nothing to do with the speedo) and is part of the multifunction screen.  if it is flickering then it may be a loose connection behind the dash.  And if that's the case, I can't say that I've ever heard of that issue before.

[O.C.]

What he is referring to is the speedo Jim, GTR speedo here is analogue too, I can recall all too well what the needles on two stroke instruments can be like, 'bouncing' needles often came about as a result of old instruments and/or badly lubricated cables

However the GTR has an electronic speedometer powered by a signal from the transmission (I imagine) so the problem you describe could be a faulty transmitter or faulty speedometer head

Madmuffet, this isn't a common problem, at least not one that I've heard about

Jim's advice regarding manufacturer or dealer warranties is good    

[virginiajim]

I'm still not sure what he is referring to then....

[Charlie747]

I'm still not sure what he is referring to then....

Let me help yer Jim.....................

The big black faced speedo thing in front of you with the red needle that is moving from rest in a clockwise direction to give the rider an indication of the ground velocity the bike is travelling at.
Normally this needle moves up and down the indicated speed scale smoothly, but alas on this bike the needle suffers from from the needle oscilating when the bike is traveling  at a fixed velocity.

Well I'm thinking that's what was ment 

[Ant]

Clear now Jim ?   

Correct me if I'm wrong, but if its like old style speedos ( not the swimming type ! ) doesn't it work off the front wheel rotation ?  could it be linked to the ABS sensor and its just missing the odd sensor pick up ?   

Or doesn't it work like that now............

[Charlie747]

  Madmuffet

Please note the way that the forum swings into action in support of its members...........

no doubt about it you will get the answer yer looking for...........

.its just that we've got to get all the team up to speed reading and understanding what you've asked.............

This may take some time 

Please watch this video whilst the team catch up...........

PS Jim......big dial on left 

https://m.youtube.com/watch?v=4-FL_2tF4TA

[Ant]

I guess you run out of road a lot when the islands only 20 mile wide 

[virginiajim]

Ok...going into the archives..going by some wine...oh no!  Drinking the wine...only a few sips anyway.

Speedo is controlled by a speed sensor.   This sensor is located at about 11 o'clock as you look at the lower left side of the bike with the big black thingy circle (made of plastic..think of it as a clock face).  There is a procedure to check it and I'll write that up for you tomorrow unless someone has a service manual and can get to it before me.  It's either the gauge or the sensor mucking things up assuming that's what the op is talking about.

Ant, our speedo is not controlled off the front wheel ABS sensor as far as I know.

Charlie, when the word clock is thrown in to the mix, confusion reigns.

Over in the US we call this a speedometer.

[O.C.]

You're getting there Jim       

[Charlie747]

Ok...going into the archives..going by some wine...oh no!  Drinking the wine...only a few sips anyway.

Speedo is controlled by a speed sensor.   This sensor is located at about 11 o'clock as you look at the lower left side of the bike with the big black thingy circle (made of plastic..think of it as a clock face).  There is a procedure to check it and I'll write that up for you tomorrow unless someone has a service manual and can get to it before me.  It's either the gauge or the sensor mucking things up assuming that's what the op is talking about.

Ant, our speedo is not controlled off the front wheel ABS sensor as far as I know.

Charlie, when the word clock is thrown in to the mix, confusion reigns.

Over in the US we call this a speedometer.

Reminds me of that song about the correct pronocement of the word "Tomato".............. And that's when the fight started 

Thanks for the info 

[virginiajim]

There are multiple steps in checking the speedometer operation (this is based on my 2008 manual):

Check 2 - Meter unit power supply check (I think you are getting power if the needle is moving)
Check 10 - Speed sensor supply voltage (same as above)
Check 16 - Speedometer Inspection (this test uses a square wave generator, not the kind of thing most of us have lying around)
Speedometer Sensor removal

I've attached pictures of the relevant tests and removal.  Once the bike is running for a minute or two, what is the voltage on the display showing?  Also you should pull your battery and make sure the terminals are tight with no corrosion.  Then I would (with the bike switched off) connect and disconnect the gauge cluster connector and the speedometer sensor connector.  You can't just replace the speedometer, the whole gauge cluster has to be replaced (probably did not want to hear that).  Part number for US bikes is either 28011-0156 or 28011-0194.  Sorry can't tell which one is the right one.  Two choices.