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Front brake mechanism ..... impossibility to renew - adjust

99.99999999% sure your Banjo bolts would be 10 x 1.000. Suzuki moved to 1.25 later. But you could always check one of yours at the hardware store in a gauge.
 
I have gauge!
I have to move a mountain to get at my spares.
I ask as I cant take mine off ...

not to worry I'll move the mountain
 
I have gauge!
I have to move a mountain to get at my spares.
I ask as I cant take mine off ...

not to worry I'll move the mountain

You can’t replace it if you don’t take it off. If ya don’t take it off, ya can’t measure it. If ya don’t measure it, you can’t KNOW.
 
99.99999999% sure your Banjo bolts would be 10 x 1.000. Suzuki moved to 1.25 later. But you could always check one of yours at the hardware store in a gauge.
yes, 10mm. But I hate to be the guy that tells him wrong too. Who really knows if he has OEM MasterCylinder? But you don't have to take it off, just unscrew it enough to measure with a rag under for drips.... Top up MC after. DO avoid drips onto paint.
 
Ok.... was just a thought....

My gut feeling is it would be m10*1.25.

There is no way you can measure thread without
removing it.

I want to order before I remove it
(there are 2 options)
as want to use the bike and it is a
standard Stabdard reservoir) troublesome bike to bleed.

Not a problem I'll dig into my stock
mountain or remove it and find out.
 
Ok. I just measured a spare I have and the pitch is 1.00. It is off my '79 GS1000 which subs to the same PN as your bikes.
 
Yes, original GS banjo bolts are M10 x 1.

Since the start of this thread was because your M/C has the batty GS switch mechanism, we can probably safely assume it's original.


Later model M/Cs use a somewhat more sane switch design and usually have a M10x1.25 thread.

And I think the other brands mostly used M10x1.25 all along, but it's best to take a peek if you're swapping bits around.
 
Many thanks and I can confirm (not that it needs confirming )
but by own hand finding from my parts mountain my
spare reservoir body and banjo bolt that it is
m10 * 1.0. (for both gsx250 and gs550e all standard)

I will now order 2 with the standard Japanese bullet
connectors .
I can barely wait to fit and will update as for
me it either works perfectly or is rubbish.
 
Ordered 11/11 arrived today 25th nov
from ebay China.

I will fit tomorrow prob on
the gsx 250 to test.
Will update

20201125_161959_resize_83.jpg
 
It works !!!!! I am totally converted to this device now.

Took the time to renew brake fluid too.
Simple to put on as takes the place of the
original banjo bolt (m10*1.0).
It came with 2 washers and had the correct
Male jap connectors that go into front light.

It worked ! This on my GSX that had the intermittent
brake light issue due to crud in that mechanism.
I'll order another for my GS.

[on a separate note in doing this I lost
the internal mechanism on the floor so yet again ended up
on my knees with a torch looking for that damned
internal connector....
Hopefully never again
bagged up said connector and hope to never see it again.

20201126_163436.jpg
 
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