K3 speedo pickup tests?

[2F45T4U]

my speedo has been going crazy and has now finally died. ive measured the sensor pins at about 5 Meg ohm. one of them is totally O/C which i presumrd to be the screen. im pretty sure its knackered. i expected nearly a couple of K ohms. but before i buy a new one. are these a common failure item or does anyone have the resistance of a new or good sensor?

[Jayneflakes]

The most common failure is that the splines snap off the magnet in the front wheel, giving erratic speed measurement. If you have not yet checked this, do so first.

No idea about the electronics though, I consider this to be dark magic at the best of times! ;-)

[madnlooney]

yeah i would say check the magnet first see if its broke. if not you can then test the sensor. There is a test in the haynes manual.

[2F45T4U]

cheers folks, the weather was so good yesterday i just whipped the connector off and had a quick measure. will take the wheel off this morning and sees whats i finds.

[punkyp]

The problem with my K3 speedo was with the connector under the tank. Took wheel off and all the tabs were ok, so I lifted the tank, removed the airbox and sprayed some WD40 in the conector, that seemed to fix it.

[2F45T4U]

The most common failure is that the splines snap off the magnet in the front wheel, giving erratic speed measurement. If you have not yet checked this, do so first.

No idea about the electronics though, I consider this to be dark magic at the best of times! ;-)

Hmm, like this?

http://i1175.photobucket.com/albums/r629/Sillypiece/2012-05-21104007.jpg

surely they sell the magnet separate? or do i have to buy a complete assembly?

Cheers.

[xXBADGERXx]

New assembly time , they are about £30 from Suzuki Dealers , and you need a specific K3 one as well if my memory serves me correctly .

[2F45T4U]

Thanks, i shall get one ordered up tomorrow. seems like a **** design, I hope the replacement ones are a bit better. im gonna try and repair the old one and keep as a spare.

Cheers!

[xXBADGERXx]

Here is the part number for the K3 unit 34983-21E00 , I am pretty sure the Tab spacing is different on K4 onwards

[Sid Squid]

That's broke that is.

New one: Clickety click. (http://www.robinsonsfoundry.co.uk/content/pages/home/advanced-search.htm?search=34983-21E00&search_products=yes&search_pages=yes&search_groups=yes&search_new_bikes=yes&search_used_bikes=yes&match=all_words&submit.x=18&submit.y=13)

That page lists rotor for a Curvy but the early Pointy is the same, K5 onwards is different.

[xXBADGERXx]

There ya go , Sid has confirmed the same part number , Robinsons Foundry will require you to make a little account but I have found them to be very good at despatching stuff and they have a searchable fiche online for bikes they deal with , very handy site to have on your Bookmarks

[Jayneflakes]

Araldite the tabs back on! Works for a while, then you can still run about with a working speedo while waiting for the new one to come!

[xXBADGERXx]

I thought about a permanent fix of potting these into a wheel as a full time feature

[Jayneflakes]

It is annoying just how fragile these things are, it is not even real metal that the are made from, it is the metal equivalent of MDF! I would be intrigued as to how you would fix this permanently Mr Badger. I can imagine that you are stood proud at the forge, making them yourself :D

[xXBADGERXx]

Machine the pockets that the tabs go in by about a 1mm , then prime them and pot them in with Silicone , the magnet tabs could probably be machined from some sort of stock , not very cost effective at all , but one of those things I have wondered about from time to time

[2F45T4U]

speedo fixed. the rotor/magnet is available on its own from suzuki.

http://i1175.photobucket.com/albums/r629/Sillypiece/2012-05-26143936.jpg