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Messages - SpannerBrat

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16
CB500/550 / Twin disc conversation master cylinder bore?
« on: August 27, 2018, 08:46:43 AM »
Hi there,
I seem to have managed to fettle an extra (rhs) calliper into life & fit it to the 750SS forks I got with the “box of rusty bits” bike I originally bought. All “looks” decent (i’v not had anything working yet) but I need to buy new levers & so I wanted to find out from you guys what size of master cylinder I need to hunt for ont’interwobble? Searches are throwing up 5/8” as a likely candidate. If any of you have any cool looking alternative suggestions for levers, i’m all ears.
Also, have any of you advice on the best twin disc hose arrangement? I  prefer the look of looping a link hose from one side to the other but suspect that this could a) not be as powerful as running a full length hose to each side & b) could also be more problematic when it comes to bleeding (but both of those are guesses).
As ever, thanks for any input. This forum has been a great help in keeping my build going (& importantly, going in the right direction).

17
CB500/550 / Re: Alternative side stand
« on: June 29, 2018, 09:04:33 AM »
Thanks for your comments Matthew,
As it goes, I will be dropping the clamps down the forks so could be worth a trial at least. I'll check out the frame clamped option as well. Failing that, I'll just have to find a hill every time I park up  ;D
Has anyone else any info to firm up a decision?

18
CB500/550 / Alternative side stand
« on: June 28, 2018, 12:28:33 PM »
Hello again,
I didn't get a side stand in the '76550 K2 "box of bits" that I bought to build so I was wondering - as I've no need to generally fit model specific items - what other models I could search for that will fit & work. As I'm building a brat/cafe bike, I like the "minimalist" look of the attached stand (listed on fleabay as a CB500 K1 / K2) & have seen the there are similar stands for many other CB models (350, 360, 400, 650 etc.). So, I'm expecting the main question is over the length but I can also see a possible query over the pivot size.
As every, many thanks in advance of any help / advice you can offer.
Andy

19
CB500/550 / Re: Rear brake panel compatibility
« on: June 14, 2018, 05:17:34 AM »
Thanks Matthew,
Having blown apart the engine & glued it all back together myself (with no experience & “only” a manual, the internet & you guys for help), there’s every chance the end result may never fly again  ;D so actual working brakes might not be required. And with cafe/brat builds being all about the “look”, it’s probably worth giving it a shot (there’s always going to be a fleabay market out there if it proves a bust).
Seriously tho, thanks for the sound advice, i’ll do some more digging before making any move. It would be nice if the cleaner 500/550 plate fit but not at the expense of making  close aquaintances with any of the many friendly North Yorkshire dry stone walls we’ve got round here  :o

20
CB500/550 / Re: Rear brake panel compatibility
« on: June 13, 2018, 07:34:13 PM »
Haha.....THAT I know (makes a decent StarWars prop tho doesn’t it  ;D)!

21
CB500/550 / Re: Rear brake panel compatibility
« on: June 13, 2018, 12:00:56 PM »
Thanks Bryan,
I didn't get chance to check things out over the weekend but have this pic of the "Millennium Falcon" plate I (currently) have if it helps with identification (650)?
Ultimately, I'd like to hunt down a pair of CB wheels but the comstars I have will have to do for now so it would be great if someone could confirm options I'd have for alternative plates.
Cheers,
Andy

22
CB500/550 / Rear brake panel compatibility
« on: June 10, 2018, 01:28:20 PM »
Hi all,
So I’m wearing my Sherlock Holmes hat again trying to  work out what parts i’m pulling out of the boxes I bought this ‘76 Frankenstein project in (the more I dig, the more it seems I was buying a garage clearance than a broken up  CB550  ::)). Not to worry though, it just makes for a more “interesting” experience all round. Anyway, the wheels that I had thought were CX500 Comstars, could actually be from a late 70s / early 80s CB650 based on the brake panel I have & I was wondering what options I have for alternative panels that will be compatible? I prefer the cleaner look from the CB550 (less “bracing” involved) & wanted to know which models I could hunt out appropriate  parts from?
As ever, any help will be much appreciated & gratefully received.
Thanks everyone,
Andy

23
CB500/550 / Re: Tank locating method?
« on: June 04, 2018, 11:10:17 AM »
As another Northerner Bryan, I had my suspicions (& love the cartoon btw Hairy). Keep it up both!

A nut/bolt (& big washer) seems an easy enough addition. A  bit “belt n brace” maybe but an easy fit (no rip-off labour rates if i’m doing it all on my tod).

24
CB500/550 / Re: Tank locating method?
« on: June 02, 2018, 10:56:49 AM »
Thanks, I’ll see how we do turning it around (it will neaten up the area I’ve got to navigate with the new seat pan / seat so worth getting it right). As for the holes being for “ventilation”......somehow that doesn’t sit right???????

25
CB500/550 / Re: Tank locating method?
« on: June 01, 2018, 08:27:43 PM »
Anyone any ideas on what these holes above one another in the tank & frame are about / for?

26
CB500/550 / Re: Tank locating method?
« on: June 01, 2018, 10:08:02 AM »
Actually, looking back at the 1st image I posted, the gap doesn't look that big really. So, your suggestion NG might well be a lead runner  8). Particularly as it seems foolish not to take advantage of using the already upturned, press formed spaces in the frame to locate a couple of pegs within the base which means I'll be slotting the seat down & forward before dropping pegs in the rear into a bar I've attached across the back end of the frame just in front of the seat hoop.

I can feel it coming together already  :D

27
CB500/550 / Re: Tank locating method?
« on: June 01, 2018, 10:00:42 AM »
So I squished, pulled & slotted it into place this morning & it all worked quite simply, as described (thanks again). Just out of interest, is the hole in the bracket (flange?) that comes off the tank used? It corresponds to a hole beneath in the frame (that's larger). That particular CMS microfiche isn't the easiest to read  :-\ & I can't see anything that corresponds.

As for closing that gap, I can see it could be a tricky one but plan to solve it somehow. As it happens - although I class it as a "cafe" build - I've more of a brat seat style in mind. I might lift the nose of the foam slightly (as shown in your "Pire" pic K2) so I can follow the rear profile of the tank (or may consider moding the tank Trigger :o). Squeezing the seat under the arch sounds interesting but (as mentioned by Trigger) the tank is distinctly wider that the frame at that point so will also need a bit of head scratching (but isn't that half the fun  ;D).

28
CB500/550 / Re: Tank locating method?
« on: May 31, 2018, 11:03:13 PM »
OK, so the rubber piece is 1stly, the wrong way round (that “tab” should still be uppermost but pointing towards the back of the bike) & when installed correctly, joins the tank to the frame by sliding it 1st, over those 2 frame tabs & then lowering the tank & stretching it over that flat(ish) part of the tank. Have I got that right?
The seat then just has to meet that rubber piece & follow the profile of the rear end of the tank?
Should be doable if I’m reading things right.
Thanks for the help.

29
CB500/550 / Tank locating method?
« on: May 31, 2018, 08:56:55 PM »
Hi all,
So my cafe build has come to the seat making stage & as I’ve never seen how the rear end of a standard 550 tank fits to the frame, I’ve no idea what I’ve got to fabricate, to work up to (the piece of perforated is just a start). Can someone describe the method of locating the tank & the ultimate arrangement (with the plates, flaps, rubber piece & holes that can be seen in the photo) or direct me to a link or images etc. that will help me understand what I’m aiming at please?
Many thanks for any help offered from your immense pool of collective knowledge.
Andy

30
CB500/550 / Re: Carb stud hunt
« on: May 02, 2018, 03:15:24 PM »
Thanks Jon,

Can't believe I hadn't adjusted my view to include other studs (generally so focused on Honda parts  ::)).

Consider myself "schooled".

Cheers,

Andy

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