Tilt Lock Brake Microswitch
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Member
Fuoco
Joined: 15 Oct 2020
Posts: 8
Location: Norfolk, UK
Mon Apr 12, 2021 7:35 am quote
2008 Fuoco

Has anyone got a part number for the little microswitch that senses when the tilt lock brake calliper is off?

I'm pretty certain its at the root of my problems because just "tickling" it affects whether I get the dreaded beeps or not.

Thanks in advance.



Hooked
2009 MP3 400, 2004 Honda ST1300
Joined: 11 Jun 2007
Posts: 330
Location: Sayre, PA
Mon Apr 12, 2021 8:45 am quote
I'm not finding it on the fiches.

It's not the pressure switch.

Which area did that little bugger come from? Handlebars? Tilt motor? Tilt caliper?
Veni, Vidi, Posti
Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
Joined: 29 Mar 2008
Posts: 21791
Location: Harriman, Tennessee, Tn
Mon Apr 12, 2021 10:59 am quote
did you take that off the anti roll motor? if so its not available separately as it comes on the motor.

did you verify the operation of the switch as to opening and closing with a ohm meter?
Member
Fuoco
Joined: 15 Oct 2020
Posts: 8
Location: Norfolk, UK
Mon Apr 12, 2021 11:45 am quote
It comes from a wiring loom plug and the microswitch is attached to a bracket on the the brake calliper for the tilt lock. When the lever for the calliper moves to the "unlock" position it touches the microswitch.

With the calliper clamping in the tilt locked position the microswitch is easy to check. I didn't need to do an ohm check because the merest, simplest delicate touch of the switch plunger could set off or silence the warning sound.
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39526
Location: Pleasant Hill, CA
Mon Apr 12, 2021 1:03 pm quote
Can its position be adjusted to ensure open/closed? It looks like a fairly common microswitch.
Veni, Vidi, Posti
Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
Joined: 29 Mar 2008
Posts: 21791
Location: Harriman, Tennessee, Tn
Mon Apr 12, 2021 4:46 pm quote
chyaweth wrote:
It comes from a wiring loom plug and the microswitch is attached to a bracket on the the brake calliper for the tilt lock. When the lever for the calliper moves to the "unlock" position it touches the microswitch.

With the calliper clamping in the tilt locked position the microswitch is easy to check. I didn't need to do an ohm check because the merest, simplest delicate touch of the switch plunger could set off or silence the warning sound.
so the switch is working as its suppose to.
Hooked
2009 MP3 400, 2004 Honda ST1300
Joined: 11 Jun 2007
Posts: 330
Location: Sayre, PA
Mon Apr 12, 2021 4:57 pm quote
Oof!

I think I found it physically on the scoot. It's tucked on the left side of the tilt caliper under the spring arm. You must have had a task to actually get to it enough to remove it!

On the Fiches? Only by accident. Part #49? Really?

https://www.parts-piaggio.com/piaggio-scooters/500-PIAGGIO-SCOOTER/MP3/2008/MP3-500/Electrical-system/Voltage-Regulators--Electronic-Control-Units-ecu--HT-Coil/1209/50/20072/2686

Piaggio #640063 I believe is the correct number.


I'm finding a couple different images with that number so you may want to double check.

https://goparts.eu/en/product/details/18640063/brake-caliper-stop-push-botton

https://www.scooterwest.com/tilt-caliper-limit-microswitch-mp3-all-years-and-models.html

Fowlers has the part number listed, but with the wrong diagram?

https://us.fowlersparts.co.uk/parts/view/640063
Veni, Vidi, Posti
Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
Joined: 29 Mar 2008
Posts: 21791
Location: Harriman, Tennessee, Tn
Mon Apr 12, 2021 5:23 pm quote
pmatulew wrote:
Oof!

I think I found it physically on the scoot. It's tucked on the left side of the tilt caliper under the spring arm. You must have had a task to actually get to it enough to remove it!

On the Fiches? Only by accident. Part #49? Really?

https://www.parts-piaggio.com/piaggio-scooters/500-PIAGGIO-SCOOTER/MP3/2008/MP3-500/Electrical-system/Voltage-Regulators--Electronic-Control-Units-ecu--HT-Coil/1209/50/20072/2686

Piaggio #640063 I believe is the correct number.


I'm finding a couple different images with that number so you may want to double check.

https://goparts.eu/en/product/details/18640063/brake-caliper-stop-push-botton

https://www.scooterwest.com/tilt-caliper-limit-microswitch-mp3-all-years-and-models.html

Fowlers has the part number listed, but with the wrong diagram?

https://us.fowlersparts.co.uk/parts/view/640063
EXCELLENT find. way to dig thru those diagrams.
Member
Fuoco
Joined: 15 Oct 2020
Posts: 8
Location: Norfolk, UK
Tue Apr 13, 2021 1:16 am quote
Top man

That's the blighter

Many, many thanks.
Hooked
2009 MP3 400, 2004 Honda ST1300
Joined: 11 Jun 2007
Posts: 330
Location: Sayre, PA
Tue Apr 13, 2021 2:37 am quote
I'll be interested to hear if a new part fixes the problem.

I didn't know that switch even existed. If that is also a potential point of failure, it may be the answer to many of the "I've checked everything and it's still beeping!" queries.

Depending on how the switch is behaving, maybe just an adjustment of the cable?





Member
Fuoco
Joined: 15 Oct 2020
Posts: 8
Location: Norfolk, UK
Tue Apr 13, 2021 8:18 am quote
I've big apology to all, especially, "Old as dirt". When discovering the switch was 45 I thought I'd better double check it.
Yep, you guessed it, it does work I didn't appreciate that the plunger was so sensitive

I'm now left with the situation that if I manually wind the tilt motor to the locked position then switch on I get no warnings.

9 out of ten times I can select "unlock" and get no warnings.
If I then select "lock" I get a continuous beep and flashing red light for a while then beeps at one second intervals . (No motor movement)

On the "one out of ten" times it goes straight to the continuous beep etc.

The problems started after the scooter was knocked over and buried in my shed that was demolished by a gale. It sat there in wet and petrol for a few days until I was able rescue it. After a week of drying out it seemed okay but started giving out the errors and stopping about twenty miles into a ride.

Over the past few months I've checked out everything as advised from my forum discussion last October. Given the seemingly random nature of the warnings I'm concluding the only possible thing failing is the parking ECU.

Anyway, thanks for all the advice and support.
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39526
Location: Pleasant Hill, CA
Tue Apr 13, 2021 8:38 am quote
ISTR a thread that detailed the workings of the motor - and how it could get jammed up by water corrosion. After cleaning, the remedy was to drill a hole in the casing to allow water to drain out. I can't find that info now - does anyone else remember? It was many years ago.
Hooked
2009 MP3 400, 2004 Honda ST1300
Joined: 11 Jun 2007
Posts: 330
Location: Sayre, PA
Tue Apr 13, 2021 9:46 am quote
https://manuals.wotmeworry.org.uk/Piaggio/Piaggio%20MP3/Useful%20Info/Tilt%20Lock%20Motor%20Case%20Sealing%20Procedure.pdf


Bless him for making all the info available. I downloaded all his stuff and saved it in multiple locations.
Hooked
2009 MP3 400, 2004 Honda ST1300
Joined: 11 Jun 2007
Posts: 330
Location: Sayre, PA
Tue Apr 13, 2021 10:08 am quote
The electronic units don't fail very often.

For this particular situation I would want to verify the status of the position indicator switches with each good/bad result.

I would have to think that the tilt caliper switch would have a distinct plunger throw similar to the brake lever micro switches. If it's triggering an alarm just by touching it, is the switch defective? Is there a bad connection between the component and the wiring harness?, or is it maybe out of adjustment?

Hard to tell from the photos. Which way is closed circuit? Tilt Locked? or Tilt unlocked?







Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39526
Location: Pleasant Hill, CA
Tue Apr 13, 2021 2:57 pm quote
pmatulew wrote:
https://manuals.wotmeworry.org.uk/Piaggio/Piaggio%20MP3/Useful%20Info/Tilt%20Lock%20Motor%20Case%20Sealing%20Procedure.pdf


Bless him for making all the info available. I downloaded all his stuff and saved it in multiple locations.
Heh. I knew I'd seen it somewhere!
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