Where can I order online the starter PushButton for my K100RS 8V. The old one is broken.

I'll stick my neck out and say that you cannot buy just the button, unless you buy a new right side switchblock assembly and wiring.

Or you can buy a second hand switchblock just to get a starter button. You run the risk of not knowing how fragile the second hand button is.

Search the Forum as this has been discussed previously.

Good luck.

If you come a cross a hoard of them, tell us!

@emmanuelfiadjoe wrote:Where can I order online the starter PushButton for my K100RS 8V. The old one is broken.

Part number 61 31 1 459 462 (US$132.92*) will get you the right hand side combi assembly with headlight switch for K100RS. The green button and the red lever are not available separately.



*584.183 Cedi

That's about all my salary (GHC 667)  as a senior high school physics teacher.
BTW, I did a little modification by passing a screw from the top of the cap into the little metal that makes contact with the leads. The pushbutton protrudes more, but it works just fine. My only concern is longevity. I hope I get a new one from an abandoned K here before the modification gives up.
Thanks all for your reply.

I had a similar thing happen to me about 10 years ago. A screw went in and then I covered the top of the screw with a plastic cap....or you could use the black plugger part in a syringe or needle. The bike is still in use except I have a different colour cap. In Australia certain plastics do not last long...especially the starter button.

Mine in OZ karked it soon after purchase. I glued it back together with 3M weatherstrip cement until the entire assembly died a death a few years later. Necessity is and always will be the mother of invention.

I think the major concern is that water can get into the switch block and cause other problems.
I stuck a plunger rubber from a 5ml syringe over mine. Been there for nearly a year now no probs.

There is a member in Spain who used a 3D printer to make some but I haven't seen him around for ages. If I could remember his name I would PM him.

Makes all us ol' Luddites long for the return of proper kick start levers. 

@brickrider wrote:Makes all us ol' Luddites long for the return of proper kick start levers. 

It makes it a simple process but unfortunately some of the big twins and singles had a habit of launching you over the handlebars.

Had the same problem, and was lucky enough to find a guy parting-out a bike, and sold me the right-hand switches for $20.  And yeah, the only part that I used was that little green button.  Of course now I have an extra red kill switch lever, and some wiring that I'll keep but never use.

The green starter button would be an ideal candidate for 3D Printing.  Now that I think of it, it would be great to set up an archive area of this forum for 3D Printing files... for this and other small plastic parts.

Then I'll get some rubber to cover mine.
Thank you all

@BadjerJim wrote:Had the same problem, and was lucky enough to find a guy parting-out a bike, and sold me the right-hand switches for $20.  And yeah, the only part that I used was that little green button.  Of course now I have an extra red kill switch lever, and some wiring that I'll keep but never use.

The green starter button would be an ideal candidate for 3D Printing.  Now that I think of it, it would be great to set up an archive area of this forum for 3D Printing files... for this and other small plastic parts.

our workplace has one of those new printers ...might be a good idea to take a scan of one before it breaks

hmmm

good idea jim ...thanks for the reminder

Work also has a new printer.
They want to test their modelling and printing skills.
I was told to bring in a button and the speedo gears for modelling and manufacture.
Will keep you posted.

That could make you a very popular person.

The '85 K100RS I purchased 12 months back had a nice IP65 rated push button switch assembly installed in the bore normally used for mounting the rear view mirror on naked and K75C models. Easy job to reroute the wires, switch is not inaccessible and water proof as all hell.

I had that in place of an indicator switch on the K100 for a few years.

crikey if you can get the scan / cad  file rossko (3d modelling )  save as ?.stl 

we should be able to convert it anyhow to our standard at least

ill give it a go up here on ours as well

good onya

I will post pictures later, but had to do some major butchery on my starter switch to get the green button out without damaging it any more.

Might have to get one of them made also.

With the remnants of the green button so difficult to get out without further damage, how will the new button be installed? This could be a problem 

looks like the brass section of the contact at the inards side is glued - heated into place ...possibly on a pike into the green button

the emergency cutoff button and green button are easily removed as an assembly but hard to separate up the core of the cutoff switch inards

maybe a cutoff wheel on a dremel could cut the outer part in half to expose the push button

ill give It ago later, if there is interest

Don't destroy yours Charlie. Already done it to miine.

Pics will follow when I can get a camera to focus close enough to see what is going on

I had a look at an assembly today, and I'd like to know how the contact is secured into the green button. Moulded, glued or something else?

Got any pics yet rosskko?

I'm thinking it may be possible to put a thread in the button and make the contact with a brass round head screw??

(It would be nice to have a blue button on the blue bike.)


Paul.

Paul, the peg is held in by friction.
It has a little knurled section on the end.
Impossible to get out unless you destroy the red switch.

I was thinking the same thing with the screw. Only thing is, if you ever have to replace the button, you probably won't have to pull it out again for another twenty years.

I have the button and switch with a design guy at work to make a model, he is talking about making a mould to make them out of more durable plastic.
Will probably do both to make a new set.
I suppose the button post could be removed by drilling it out to weaken the hold on the metal pin.

The other thing I was thinking is the spring could be cut down by 1/3. It is very strong for its role and probably has a hand in popping the top off the button
Will keep you posted

Thanks, rosskko.  

P

We all wish you luck in this little adventure!

good work rossko
yes your right Paul a 2mm bolt should work just fine   and may have the same head contact interference to the switch ?

cheers

Well, I couldn't resist it, using rosskko's info, I decided to drill out the contact pin on a spare switch block. As the shaft is 2.5 mm diameter it was easy enough and the red lever stayed intact.    



I then turned a replacement push button in brass with a 6BA thread to use a cheese head screw with it's head turned to 3.5 mm as the contact.
Etch primed and painted blue, now there's no green bits on my blue bike.   

Charlie, do you think this colour matching is getting out of hand???

Paul.

Good work SCP.
Wish I had know how they went together before destroying mine.
Still waiting on the techie to model the button.
Despite their initial excitement they are a bit slow.

Love it Paul, absolutely love it!

Taking the concept of a unique bike to a whole new level.

Cheers

pretty good result paul

yes I think your right ...some of us have gone over the edge with the colour matching ...perhaps ...but I understand the need mate .

Excellent work there Paul.

Do you take orders? No...seriously, do you? A nice little bunsen burner for you there!

I get excited if I don't cross thread the valve cap when checking the air in my tyres, so there's no way in the world that I'll ever be able to do what you did.

good one blakey ..

and he with 3 of the things ....

I must get up there again soon

@emmanuelfiadjoe wrote:That's about all my salary (GHC 667) as a senior high school physics teacher.
Thanks all for your replies.

I suppose those of us in 'the West' need a dose of reality once in a while as to how lucky we really are, in relative terms, with options and access to parts merely a phone call or quick Google search away, and often as cheap as chips.

Sage words, TWB, in countries with a proliferation of K's we're spoilt by having an easy supply of new and used spares. 

I wonder how many new K's were delivered to Ghana?

Anyway, emmanualfiadjoe, if you PM me your address I'll send you a replacement starter button.

Paul.

@sidecar paul wrote:
Anyway, emmanualfiadjoe, if you PM me your address I'll send you a replacement starter button.

Paul.

Nice work SCP. Make sure to get the colour correct.

wow  ...amazing paul

good on you !!

Good work Paul.

Great to see so many contributing and helping fellow Knuts.