Author Topic: '80 CB650C Cruiser - Project Wraith - Another setback  (Read 48256 times)

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Offline Hush

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Re: '80 CB650C Resto-Bob
« Reply #75 on: September 17, 2009, 03:19:48 AM »
If gas is coming out the overflows then it's float or float valve related.
Most carb problems seem to be related to crap getting from the tank to the carbs and jamming the valves open.
I've had 2 floats "sink" on me so far, luckily I bought a spare rack of carbs and have been stealing bits from them, the floats look OK but once you replace them the problem goes away??
My bet is either your floats are set too high or more likely there is crap/rust got into the carbs and is blocking the wee float valves open partly.
If only one carb floods it's usually float related, if all 4 do it's more than probably rubbish that has migrated from the tank.
Not sure why you are having trouble with your foot brake though, one thing, the 650 brake rod (long thingy to back brake) goes over the axle on the 650 as opposed to the 750 etc where it goes under the back axle.
I think the thing I most like about motorcycling is the speed at which my brain must process information at to avoid the numb skulls who are eating pies, playing the ukulele, applying make-up etc in the comfort of their airconditioned armchairs as they make random attempts to kill me!!!!!!!

Offline The_Crippler

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Re: '80 CB650C Resto-Bob - Now with running goodness.
« Reply #76 on: September 19, 2009, 12:08:57 PM »
First off, the rear brake:  It was a problem so simple that a child of three could have fixed it.  But, seeing as how I didn't have a child of three handy, the solution eluded me...until I realized that the rear exhaust bracket was on the outside of the frame, and not the inside.

I pulled the carbs and opened them up.  Turns out that it was number one that had over-flowed.  Nothing was stuck or clogged, so I closed them back up and hoped for the best.  This time, she fired on the second try and idled with the choke fully pulled - all four cylinders, no overflowing.  I couldn't get it to idle/run with the choke pushed, however...but I was able to take a few runs up and down the street, up to 3rd and back down.  Seemed to bog down a bit, but this and the choke issue might have to do with the old air filter in there.  Thoughts?

Also, she smokes like a 70-year-old woman in Vegas, but nearly all of that is off the engine housing and pipes, so I suspect that's just the crud, oil and spilled gas.

Other than that, I'm not sure which sounds and performance issues are normal (since they are all very different than my v-twin) and which ones might be problems.  For example, as I was making the third-gear run up the street, I heard a slight high-pitched squeal.  I hesitate to call it a squeal, really...it was barely more than a whine.  Since I wasn't at speed long, I wasn't really able to get a good listen on it.  Also, as hinted above, I have to roll on the throttle seemingly more than I'm used to, but this throttle has a lot more range and less resistance than my Vulcan (perhaps this is just a factor of the difference of 20 years of technology.)

I know I didn't have any blatant questions above...this was some-way stream of conscious,...but obviously there are some things that I'm wondering about.  Any input would, as always, be appreciated.

Offline Hush

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Re: '80 CB650C Resto-Bob
« Reply #77 on: September 20, 2009, 01:20:12 AM »
Try running it without the filter box cover on, replace the cover with 2 wide washers held in with bolts, it's a trick I stole off another 650 site, works if the bike is not breathing well.
But best thing is to replace the filter, my bike ran so much better with a new one.
At some stage when you have the left side cover off the motor, remove the auto advncer fly weights and springs, give them a clean and lightly grease the wee axles the weights pivot on, this helps if the bike wont accelerate to higher speeds.
I think the thing I most like about motorcycling is the speed at which my brain must process information at to avoid the numb skulls who are eating pies, playing the ukulele, applying make-up etc in the comfort of their airconditioned armchairs as they make random attempts to kill me!!!!!!!

Offline manjisann

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Re: '80 CB650C Resto-Bob
« Reply #78 on: September 20, 2009, 05:58:04 AM »
CONGRATS!!! Must be nice to hear her run, albeit needing a bit of a tune.

Brandon
Sure it's for sale! How much you ask?? Well, how much are you willing to pay??? Now triple it, that's the price!

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Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #79 on: September 20, 2009, 08:36:41 AM »
Hush - Filter cover is off right now.  Yeesh.  Can't imagine how bad she'd be running with it on, in that case.  Yeah, I'll swap in a new filter.  It's on the list, but I hadn't gotten one in there yet (local shop has to special order them, or I need to send away for one myself.)  Popping the left side cover off is easy enough to do, and that's where I was hearing the whine/squeal from anyway. So otherwise, everything sounds normal to you? (Smoking, bogged down with old filter, etc?)

Brandon - Sure does.  My wife looked from my Vulcan to this and said, "Well...it sure is quieter.  Stinkier, but quieter."

Offline Hush

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Re: '80 CB650C Resto-Bob
« Reply #80 on: September 20, 2009, 09:57:05 AM »
Could be the advancer is dry and squealing, not sure but it made a big difference to my top end speed once I unjammed it and cleaned/re greased it.
Just mark where the pick-up plate for the spark timer is located, I used a black permanent marker and didn't have to re-time the engine after doing the advancer.
+1 on the air filter, these stock bike need to breathe big time. :)
I think the thing I most like about motorcycling is the speed at which my brain must process information at to avoid the numb skulls who are eating pies, playing the ukulele, applying make-up etc in the comfort of their airconditioned armchairs as they make random attempts to kill me!!!!!!!

Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #81 on: September 20, 2009, 11:37:09 AM »
Yeah...breathing is why I nixed my plans for pods...too temperamental on their air supply.  I fully planned to get a new air filter, just hadn't gotten around to it.  Hadn't had any intentions of riding it this year - just wanted to get it running to make sure it worked before I sunk any serious money into it - but once she fired up...well, it was out of my hands.   ;D

Offline Frankenkit

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Re: '80 CB650C Resto-Bob
« Reply #82 on: September 20, 2009, 01:45:36 PM »
yeah, I've kind of figured out that you need to be a damn pro with these 650s to get pods to work right, and odds are you're not going to be using the stock carbs if you do.
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Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #83 on: September 20, 2009, 01:47:52 PM »
That would be the conclusion that I came to after much reading...and now that I'm moving more Cafe than Bobber, it's not mission critical anymore.

Offline Frankenkit

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Re: '80 CB650C Resto-Bob
« Reply #84 on: September 20, 2009, 01:49:46 PM »
when I got my bike, I saw the shape and everything and thought "Bobber/cruiser" but I'll be damned if it doesn't pull and speed and corner like a racer... so the project bike is going to be a bobby cafe
"Moderation in all things - especially moderation. Too much moderation is excessive. The occasional excess is all part of living the moderate life."
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Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #85 on: September 20, 2009, 01:53:11 PM »
I like the way you think.  That's sorta where I am...for example, I don't think I'm going to to the "bubble butt" of a racer on mine, but more of the bobber bare fender, however, I'd still like to do clubmans and rearsets.  Speaking of which, do you know anyone who makes rearsets for our rides, or am I going to have to pay someone to fab them?  (Lord knows I'm not going to try to fab them myself.)

Offline cb650

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Re: '80 CB650C Resto-Bob
« Reply #86 on: September 20, 2009, 02:02:09 PM »
The european Z's had rearsets.   Someone used them after cutting them down some.  They also held the passenger pedgs.
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Offline Frankenkit

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Re: '80 CB650C Resto-Bob
« Reply #87 on: September 20, 2009, 03:48:31 PM »
I think Samson is going to have a sportster-ish 'drag seat' on it... like on the bratstyle site.  Something with the same curve as the original, but the pillion part much more tapered.

Not sure about the rearsets yet though.  Both of us are inseam challenged and neither of us are racers, so we're thinking low euro bars and the standard midsets... you might need someone to fab them... I haven't seen anything like that for our bikes either.
"Moderation in all things - especially moderation. Too much moderation is excessive. The occasional excess is all part of living the moderate life."
2012 CBR250R "Black Betty"
1980 CB650c- (sold) Delilah
1973 CL350- Lola?
Sweet, bubbly, Buddha - Say it ain't so!!!
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Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #88 on: September 20, 2009, 03:57:27 PM »
I'm 6', 275lbs, so I already feel like a bit of a circus bear on this thing.  When you get your 'sets figured out, clue me in to what you end up doing.

Offline Frankenkit

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Re: '80 CB650C Resto-Bob
« Reply #89 on: September 20, 2009, 03:58:22 PM »
lol.  we're 5'5 and 130ish.  makes these 650s seem real big. :)
"Moderation in all things - especially moderation. Too much moderation is excessive. The occasional excess is all part of living the moderate life."
2012 CBR250R "Black Betty"
1980 CB650c- (sold) Delilah
1973 CL350- Lola?
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Offline Hush

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Re: '80 CB650C Resto-Bob
« Reply #90 on: September 20, 2009, 09:15:21 PM »
Send a message to Scunny here in New Zealand, he made up a set of neat looking rear sets for his 650 project bike. ;)
I think the thing I most like about motorcycling is the speed at which my brain must process information at to avoid the numb skulls who are eating pies, playing the ukulele, applying make-up etc in the comfort of their airconditioned armchairs as they make random attempts to kill me!!!!!!!

Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #91 on: September 29, 2009, 06:08:50 PM »
New K&N filter has arrived.  Maybe I'll drop it in tomorrow night see if runs with a bit less bogging down.

Offline scunny

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Re: '80 CB650C Resto-Bob
« Reply #92 on: September 29, 2009, 08:40:41 PM »
poor mans rearsets for the Z
and I like my pods  ;D
« Last Edit: September 29, 2009, 08:43:14 PM by scunny »
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
            VTR1000F3
           XL250S riverbed rocket
           TS250[sold]
           TS185[sold]
           XL125S[sold]
           MT50 (white)
           MT50 (red)[sold]
           KN250/XS400 project
           XR/XL250 bitsa under construction
           SL100[sold]
           XL250R
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny

Offline scunny

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Re: '80 CB650C Resto-Bob
« Reply #93 on: September 29, 2009, 08:45:24 PM »
sorry wrong pic, damn I hate being old  ;D
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
            VTR1000F3
           XL250S riverbed rocket
           TS250[sold]
           TS185[sold]
           XL125S[sold]
           MT50 (white)
           MT50 (red)[sold]
           KN250/XS400 project
           XR/XL250 bitsa under construction
           SL100[sold]
           XL250R
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny

Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #94 on: September 29, 2009, 09:10:43 PM »
Well, it happens to us all.  Er...do you have the right pic?   ;)


And I wasn't knocking pods...I'd love to have 'em...I just know I'd never get them to work right, and my local shops won't touch 'em on a CB to do them for me.

Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #95 on: September 29, 2009, 09:12:12 PM »
Also, I'd seen the above pics (right or wrong) in your work log...Know any place I can track down a set?  I can't find anything on Ebay, and the googles, they do nothing.

Offline scunny

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Re: '80 CB650C Resto-Bob
« Reply #96 on: September 29, 2009, 09:21:33 PM »
I think the later 750's and 900's had them as well, but they do require longer engine mount and swing arm bolts to mount them.
hopefully this is the pods
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
            VTR1000F3
           XL250S riverbed rocket
           TS250[sold]
           TS185[sold]
           XL125S[sold]
           MT50 (white)
           MT50 (red)[sold]
           KN250/XS400 project
           XR/XL250 bitsa under construction
           SL100[sold]
           XL250R
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny

Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #97 on: September 29, 2009, 09:29:03 PM »
So, other than bolt length, are the rearsets from other CB sizes pretty interchangeable?    I've seen them out there for 400s, 550s, and a few 750s, but none for 650s - even import models?

As for the longer bolts, is that just a hardware store kind of thing, or are is their a supplier of one specifically for engine mounts?
« Last Edit: September 30, 2009, 04:08:00 AM by The_Crippler »

Offline scunny

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Re: '80 CB650C Resto-Bob
« Reply #98 on: September 29, 2009, 09:46:22 PM »
sorry can't help you on all the different models, a quick search of the parts fiche should show you. I'd imagine the bolts are easily attainable thru a good supplier
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
            VTR1000F3
           XL250S riverbed rocket
           TS250[sold]
           TS185[sold]
           XL125S[sold]
           MT50 (white)
           MT50 (red)[sold]
           KN250/XS400 project
           XR/XL250 bitsa under construction
           SL100[sold]
           XL250R
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny

Offline The_Crippler

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Re: '80 CB650C Resto-Bob
« Reply #99 on: September 30, 2009, 12:59:19 PM »
Anybody have anything to say about universal rearsets?  Ones that I've found on a few sites seem to bolt on where the rear pegs go, like these.  Seems fairly straight-forward, and I can order connecting rods to cut to length as well.


Or I might be totally talking out my ass.  One or the other.