KR1-S restoration

Show us that box of bits in your shed!
Bonneville
Newbie
Posts: 24
Joined: Fri Apr 01, 2016 4:15 pm

Re: KR1-S restoration

Post by Bonneville » Sat Jun 04, 2016 2:22 pm

Yes, I like that look. The shortening of the side panels/tail is genius. I have the MC21 fairing as I replaced it wth Tyga on mine:-

Image

I might try the Tyga nose on the KR when it's next off the bike.

Bonneville
Newbie
Posts: 24
Joined: Fri Apr 01, 2016 4:15 pm

Re: KR1-S restoration

Post by Bonneville » Mon Jun 13, 2016 1:53 pm

The rear master cylinder was seized so I stripped it and it needed a rebuild kit. This was £22 so I thought I'd try one of those Chinese universal ones of E-bay as an experiment:-

Image

This cost £9.95 posted from the Netherlands and the mounting dimensions matched. It's basically a copy of the original and all I needed to do was drill (7.5mm) and tap (M8x1.25) the mounting holes and cut the actuator rod down to match the original.
Comes with a matching cup:-

Image

It bled very quickly with good pressure. Could even be used as a cheap rebuild kit for just the internals:-

Image

I've had variable experiences with Chinese copy stuff but I think it's getting better. Shame they don't do fairing bits for the KR1 as that stuff is pretty good nowadays.

SP_BOTT
Oil Injector
Posts: 693
Joined: Sun Sep 30, 2007 5:59 pm

Re: KR1-S restoration

Post by SP_BOTT » Mon Jun 13, 2016 2:21 pm

That looks pretty good from the outside, I had the same problem, one piston seized and the forked adaptor bent out of shape, got a complete rebuild kit including these parts, but....it didn't fit.

Got a link to yours, as I might buy one and fit a replacement rebuild kit that they swapped it for (minus a few parts)

Bonneville
Newbie
Posts: 24
Joined: Fri Apr 01, 2016 4:15 pm

Re: KR1-S restoration

Post by Bonneville » Mon Jun 13, 2016 5:05 pm

Yes, it's here:-

http://www.ebay.co.uk/itm/Universal-Mot ... SwZQxW4S0E

Cheaper than I thought, £8.59 :)

pookie
Oil Injector
Posts: 768
Joined: Mon Nov 05, 2007 4:19 pm
Location: london

Re: KR1-S restoration

Post by pookie » Mon Jun 13, 2016 6:06 pm

Those bloody Chinese copy everything, have you seen some of the cars they clone like the Range Rover Evoque and the Mini, even weirder is that when land rover and Bmw complained to the Chinese government the reply was that they couldn't see any similarity in the cars at all! [-X

Bonneville
Newbie
Posts: 24
Joined: Fri Apr 01, 2016 4:15 pm

Re: KR1-S restoration

Post by Bonneville » Tue Jun 14, 2016 9:01 am

Yes, it's true. Anyone who can stump up for a 3D scanner and a bank of CNC kit can copy anything nowadays. You can see that they have got the mounting hole centres offset but the distance between them correct. That is a classic result of 3D scanning.
What amazes me is that they can do this stuff for less than the materials would cost me here. The alloy is a decent grade, the piston is stainless and the rubber components are good. I'd be out £20 for that lot before I started (manually) machining it. They can do this for less than a tenner and ship it as well.
But, as the man said in the film "A guy who makes a nice chair doesn't owe money to everyone who has ever built a chair".

mavesyn
Newbie
Posts: 22
Joined: Wed Jun 24, 2009 10:40 am
Location: Staffordshire

Re: KR1-S restoration

Post by mavesyn » Wed Jul 13, 2016 10:28 pm

Cracking build. any pictures of it finished......

Bonneville
Newbie
Posts: 24
Joined: Fri Apr 01, 2016 4:15 pm

Re: KR1-S restoration

Post by Bonneville » Thu Jul 21, 2016 2:48 pm

Thanks! Nearly finished. Just need to paint the mudguard and find a chainguard:-

Image

Image

Image

And a video of it running here:-

https://vimeo.com/175693409

c&c
Heavy Smoker
Posts: 118
Joined: Sat Mar 26, 2011 12:18 am
Location: Rep of Ireland

Re: KR1-S restoration

Post by c&c » Thu Aug 11, 2016 11:42 pm

What a fantastic job..
I"ll take the wine,you can have the bread.

Post Reply