Author Topic: CB650 retro-racer (Read 42728 times)

scunny · « **Reply #25 on:** October 16, 2008, 06:19:41 PM »

my grin will slow me down Hush.
well got the carbs re-racked, what a pita it was working out the choke setup. since I believe in moderation a beer is now calling my name

bill440cars · « **Reply #26 on:** October 17, 2008, 08:30:35 PM »

Hey scunny, how'd that shoulder redo do? You gonna be as good as ever? Just wondered how things went with that.

scunny · « **Reply #27 on:** October 18, 2008, 01:33:39 PM »

gidday Bill. the surgeon is happy with his work and I'm now out of the sling, so it's just a time thing and lots of physio.
I've now got control over my hand so can now start working on small things like the carbs.

coyotecowboy · « **Reply #28 on:** October 22, 2008, 05:47:33 PM »

Quote from: scunny on August 16, 2008, 07:31:54 PM

...if it's anything like the rest of the sohc's the sound of autumn leaves rustling comes to mind...

Never heard that one before, I'll have to remember it when I think I'm hearing things again

scunny · « **Reply #29 on:** December 10, 2008, 05:39:29 PM »

well the lawn has been mowed and the 650 positioned back into a workable place.
took the top end apart again as I wasn't happy with the head gasket but had put it together anyway trying to beat surgery time frame. glad I did, the aftermarket gasket was a lousy fit compared to the Honda item, I think it must of been for a 550.
so progress again but only slowly, still a month or two until I can ride again

scunny · « **Reply #30 on:** December 13, 2008, 03:00:52 PM »

so before installing the carbs, bench sync, float adjustment then accelerator pump check, WTF !!! there is no way the actuater gets anywhere near the pump rod, have been gazing at this for a while now and it's got me beat (at the mo)
to sooth my feelings I've pulled one of my other bikes out, 2 kicks and away she goes, the satisfying noise of an idling engine does wonders
rant over, thanks for listening
EDIT................ I'm a dumb bastard. reassemble acc pump as intended

Hush · « **Reply #31 on:** December 15, 2008, 11:46:50 AM »

Hey we all have days like that, I well remember putting the pump spring on the wrong side of the rubber diaphram!!
I know what you mean about the choke cables (and accelerator cables too) it's a balancing act on one knee to hook them up.
Discovered that CV carbs go on a damn sight easier than the old mechanicals Scunny.

scunny · « **Reply #32 on:** December 15, 2008, 11:52:20 AM »

Quote from: Hush on December 15, 2008, 11:46:50 AM

Discovered that CV carbs go on a damn sight easier than the old mechanicals Scunny.

that's good news Hush, I've got a CV head and cabs that are going to get breathed on so to speak(after I get the current setup going)

scunny · « **Reply #33 on:** December 15, 2008, 01:21:30 PM »

$NZ 67.11 each for a carb insulator from the local Honda dealer.......ex Japan
$NZ 22.08 each fom David Silver and the same delay............. thank you internet. I'm going to do a butcher to my old ones in the mean time, I need to hear this baby run

scunny · « **Reply #34 on:** December 26, 2008, 03:00:43 AM »

right then, 12.00PM boxing day...........mission, to start this bastard.
foreseen problem... electrics unknown but all contacts good, when the white flag goes up could someone please contact TT

78CB750CAFE · « **Reply #35 on:** December 26, 2008, 04:58:13 AM »

good luck!

Grumpol · « **Reply #36 on:** December 26, 2008, 05:00:19 AM »

praying to the honda gods for you mate

scunny · « **Reply #37 on:** December 26, 2008, 04:04:59 PM »

ummmmmmmm we have turn over, we have spark, we have fuel. we don't have a runner

time to check some things and stay away from the beer fridge, but it's pretty hot here at the mo so I might weaken on the beer angle
EDIT beer fridge operating bike not, but it did cough

scunny · « **Reply #38 on:** December 29, 2008, 05:36:05 PM »

haven't had much time to work on this, it will cough a few times if sprayed with start ya bastard........looks like another poke into the carbs is in my future

scunny · « **Reply #39 on:** January 01, 2009, 04:33:13 PM »

she runs, a tad rough but that is no surprise, I have no confidence in the carb boots, they were as hard as hell and I had to do a bit of grinding on them to get the carbs on. Wheres my new boots DSS( not good timing on the date of purchase)

MikeB · « **Reply #40 on:** January 01, 2009, 09:10:32 PM »

wow the more posts i read about the 650 carbs the worst it seems to get.

I take it this is a common prob. with these bikes ?

has anyone had any dealings with these ppl ?

http://cgi.ebay.com/ebaymotors/Parts-Accessories_Motorcycle-Parts-Accessories__Rebuilt-81-82-CB650-CB-650-Honda-Carburetors-Carbs_W0QQitemZ260305081666QQddnZPartsQ20Q26Q20AccessoriesQQadiZ2863QQddiZ2811QQadnZMotorcycleQ20PartsQ20Q26Q20AccessoriesQQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item260305081666&_trksid=p4506.c0.m245&_trkparms=72%3A543

keep seeing them on ebay and was just wondering about them ?

sorry about the long link still working on how to replace them with ?

Thanks
Mike

Soos · « **Reply #41 on:** January 02, 2009, 06:27:57 AM »

SCRRRREEETTTTTCH
...dragging out soapbox...
THUD

Pardon me while I hijack your thread a moment scunny...

You know... I have a set of perfectly cleaned, new rubber innards all around, work great carbs stock to my '79 cb650 ... in a box.
For a reason.

1.) the repair bill on them was OUTRAGEOUS.(about 170-180 just for parts)
60+ for the 4 air cutoff diaphragms, then don't forget the $40 for the accel pump.
THEN you get to start buying the gasket kits.(I went cheap and got away with like $19 each kit...X4)
2.) compared to '69-'76 cb750 carbs they a re more complicated for a complete teardown and re-build.

For a 2 year specific set of carbs.
YEAH... no fun.

Went to '73 cb750 carbs...
I still like 'em. If nothing else but they are simpler to re-build(and cheaper), and the choke lever on the side of the carbs that works better(IMO) than the stocker 650 carbs

Not running them since I found the boots and the carbs off a '85('85-92??) 600cc ninja work... REALLY WELL.
Those cleaned EASILY, have yet to do re-build kits for them. 2 really good cleanings(missed the choke circuit on 1 or 2 of the carbs 1st time around)
But for those to mate to a cb650 with the earlier head you MUST use the ninja carb boots.
Have looked at '85, '88, and '91 carb boots(own '85,m and '88's), all of them have a jog in them, allowing the carbs to be a different spacing than the head, and work.

BTW, those ninja carbs line up nearly perfectly for the CV cb650 heads.
I really mean it, they are REALY tight in the stocker carb boots, but they fit.

SCRRRREEETTTTTCH
THUD
...putting it away...
...the soap box you pervert

...

l8r

Hush · « **Reply #42 on:** January 02, 2009, 08:00:20 AM »

Carb drain plugs usually tell the story, gas/no gas!

I restarted one of mine with a cocktail of 50/50 carb cleaner and high octane petrol.
Figured if it didn't kill it then it would at least clean it!

Main fault turned out to be a gas tank full of crud, something to remember when desperately trying to just hear bike run..

scunny · « **Reply #43 on:** January 03, 2009, 04:29:37 PM »

clean filters and tank, just to many vacuum leaks due to old carb rubbers.
todays project, pull apart front brakes, whoever came up with the idea to use a grease gun to pop out the pistons..thankyou thankyou thankyou

scunny · « **Reply #44 on:** January 06, 2009, 03:57:31 PM »

well upon assembling the brakes there are 2 caliper bolts per caliper, they all look the same but 2 of them, 1 from each have a rubber seal that I didn"t see because of all the crap. how come the other 2 don't have them ?
and while I'm in rant mood I spent ages today trying to find a master cylinder rebuild kit and finally found the match off a 78 750. must of been some mix and match going on

Hush · « **Reply #45 on:** January 18, 2009, 03:09:58 AM »

Hows this project going cuz?
Or are you still recovering from Xmas & New year?
I hear you on the brake thing, been wrestling with my front brakes all week.
You'd think replacing with new seals would make for better brakes not worse!

scunny · « **Reply #46 on:** January 22, 2009, 02:01:11 PM »

small steps Hush.
got the ignition sorted and the bike runs sweetly(still on the main stand) good news is I appear to have all 5 gears, must have put them bloody gear clusters together properly.
I'm now bleeding the front discs after a rebuild so no small bubbles please.
all going well, sort out the clutch and I should be off down the road in all it's bellowing glory.

EDIT...... who's the tosser that can't rebuild a MC

scunny · « **Reply #47 on:** January 23, 2009, 04:40:48 PM »

well MC rebuild kit was wrong

who needs a front brake anyway

took the beast for it's maiden voyage, I love the snarl from the 4into1 but will have to remember to go easy on it for a day or two to bed in the new bearings and rings...........is that a pub calling my name

scunny · « **Reply #48 on:** January 24, 2009, 05:06:59 PM »

I know you all like pics so here she is. will try and fab some ali sidecovers and chain gaurd this week. new tyres and pods on order.

scunny · « **Reply #49 on:** February 05, 2009, 05:09:23 PM »

pulled the petcocks off yesterday, one was blocked so me thinks time to pull them apart and clean them, lovely little brass ones and lost a spring.bugger. that is now fixed after looking thru my boxes of interesting things.
today pulled the wheels to have new tyres fitted, some stupid decided to clean them up....4 hours later and loss of finger prints the back one is looking presentable, give me chrome over alloy any day, I want spokes

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Author Topic: CB650 retro-racer (Read 42728 times)