Author Topic: CB 500 Four (1972?) Full Restoration (Read 140537 times)

calj737 · « **Reply #500 on:** December 22, 2014, 04:12:44 AM »

Quote from: MickB on December 21, 2014, 09:50:31 AM

Just noticed the finger print smudges on the chrome.

And you're calling me picky?

MickB · « **Reply #501 on:** December 23, 2014, 02:51:54 AM »

Touché

rtbmrgl · « **Reply #502 on:** December 24, 2014, 04:46:40 PM »

Quote from: MickB on December 21, 2014, 03:33:54 AM

Tail light back from the chromers, started rebuilding the carbies.

Wow i have got to get some re-chroming on mine. Thats gorgeous

MickB · « **Reply #503 on:** January 23, 2015, 03:21:23 AM »

Just easing back into the build after 3 weeks in Queensland and 2 back working, I've started on putting the carbies back together. I realise when dismantling I didn't take anywhere near enough photos.

I think Dave Barbier put Alen heads on the carby clamps, and it looked good so I copied you Dave.

Question the schematic shows a spring and a 5/16 ball bearing. Does anyone have a photo of where they go? I can't figure it out from the drawing.

More carby photos.

Lviv

MickB · « **Reply #504 on:** January 24, 2015, 01:38:57 AM »

Can someone please advise exactly which orifice does the spring "3" and ball "90" go?

DH · « **Reply #505 on:** January 24, 2015, 08:49:43 AM »

Mick, if memory serves me, the spring and ball go into a cavity behind , (and are held in, by) part #47 on carb #1.
They are used as part of the choke linkage and serve as a "detent".

MickB · « **Reply #506 on:** January 24, 2015, 12:58:28 PM »

Thanks DH, I see now where jit's got to go, carb 1 has the little orifice where it fits and 47 holds it in place. You had me with detent (a very technical term, I had to look it up).

I wonder why they don't have the spring and ball on all 4 carbies?

MickB · « **Reply #507 on:** January 24, 2015, 02:26:11 PM »

Question I'm going to use a 4 into 2 exhaust with baffles. What jetting should I use?

Currently I've got what I think is a stock set up - 100 and 40 in the carb I rebuilt so far.

DH · « **Reply #508 on:** January 24, 2015, 08:55:08 PM »

Quote from: MickB on January 24, 2015, 12:58:28 PM

Thanks DH, I see now where jit's got to go, carb 1 has the little orifice where it fits and 47 holds it in place. You had me with detent (a very technical term, I had to look it up).

I wonder why they don't have the spring and ball on all 4 carbies?

Aww c'mon mick, you're makin me sound smart cuz I use them fancy words

.....I'm thinking they didn't use them on all 4 carbs due to high effort it would take to apply the choke(?) We may never know.

MickB · « **Reply #509 on:** January 24, 2015, 09:11:52 PM »

DH Smarter than the average bear, they're only tiny springs.

MickB · « **Reply #510 on:** January 26, 2015, 02:21:34 AM »

Finished the carbs this arvo.
Hopefully on the bike tomorrow.

More carb pictures

Can someone advise me how tight the nuts are where the 2 little flat springs (are between 1&2 and 3&4) go into the holder then attach into the carby stay plate?

bryanj · « **Reply #511 on:** January 26, 2015, 10:17:52 AM »

Don't forget to attach fuel pipes whilst carbs on bench , its a swine when they are fitted

MickB · « **Reply #512 on:** January 27, 2015, 12:27:15 AM »

Thanks Bryan, I've just worked that out tonight, just pulled 3&4 off to fit the hose.

MickB · « **Reply #513 on:** January 28, 2015, 10:16:06 PM »

Just bought SS 3mm screws to replace the rubbish screws on the choke flaps and the throttle valves.

bryanj · « **Reply #514 on:** January 29, 2015, 12:19:00 AM »

Careful what and how you fit to choke flap as anything that unscrews will destroy the engine

MickB · « **Reply #515 on:** January 29, 2015, 12:45:29 AM »

Thanks Bryan I'll use a little locktite on the screws. They were tight anyway but the locktite will make it more secure

Restoration Fan · « **Reply #516 on:** January 29, 2015, 03:20:28 AM »

Quote from: MickB on January 28, 2015, 10:16:06 PM

Just bought SS 3mm screws to replace the rubbish screws on the choke flaps and the throttle valves.

Did you buy those at a store or as part of a kit?
I'm about to purchase the same thing.

MickB · « **Reply #517 on:** January 29, 2015, 01:14:17 PM »

Resto Fan I bought them at at at place called Boltmaster in Sydney, they've had every nut and bolt I needed.

MickB · « **Reply #518 on:** January 29, 2015, 01:21:30 PM »

Anybody notice the deliberate mistake, the carby drains are all pointed inwards! Doh!

MickB · « **Reply #519 on:** January 31, 2015, 01:15:02 AM »

Finished installing fuel lines on the carbs today (after having to take them off the support plate) then bench synced the carbs. Bryanj I doubled checked the choke screws all nice and tight

Carbs are connected to the engine, thanks SohRon for your thread it was made easier.

Installed the new oil pump pressure switch

New rear brake shoes were meant to be fitted today after the carbs, but it always takes longer when you've never done it before.

Can anyone assist? What is this from because I can't remember?

Restoration Fan · « **Reply #520 on:** January 31, 2015, 03:33:23 AM »

Mick,
Just reread your thread from start to finish. Amazing work, man. You're getting close now!

Ron

MickB · « **Reply #521 on:** January 31, 2015, 12:36:35 PM »

Thanks Ron, a lot of help from Calj, Bryanj, DH and many with advise and what to watch out for.
Others who have been encouraging, and also, all the blokes that published on tips and tricks.
I've made plenty of mistakes, some of the build is not as I would have liked due to lack of funds. I would have liked to have fully rebuilt the engine but the cost was prohibitive.
And I've got to make it run yet!

Valhad · « **Reply #522 on:** January 31, 2015, 04:35:02 PM »

At a guess, that looks like it might be part of the electrical plate? The bit the blinker relay rubber mounts on?

MickB · « **Reply #523 on:** February 01, 2015, 02:10:31 AM »

Valhad I think it must come from another bike as the electrical support plate already has the blinker support.

I'm going to install the air filter next and have a question.

The tube that connects to the bottom of the filter box has a small piece of sponge in the large end of the tube, does it remain or should it be pulled out?

The schematic shows a hollow tube at the wide end.

Part number is correct.

Note the sponge in the wide end.

I've got to get a new piece of wire gauze as this one's rusted.

DH · « **Reply #524 on:** February 01, 2015, 08:27:04 AM »

Mick, Not 100% sure, but I think the "sponge" in the end of the tube is a filter to keep out dirt / water.
maybe someone else will add here.....If the metal screen is still in one piece, and still strong and resilient, try soaking it in white vinegar for a while, and take any necessary steps afterwards to stop flash rust. Lookin good Sir

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Author Topic: CB 500 Four (1972?) Full Restoration (Read 140537 times)

DH

DH

DH