Author Topic: My '79 CB650  (Read 40948 times)

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Offline MikeB

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Re: My '79 CB650
« Reply #75 on: May 19, 2009, 03:34:31 PM »
OK I had it bassackwards  :P  so mine are reversed stamped ? I believe is normal for the 82 Nighthawk ?
 I think the standered one would look better but I haven't seen any yet to compare
Grass is always greener ......  :D

Thanks Soos
« Last Edit: May 19, 2009, 03:37:07 PM by MikeB »

Offline RM81

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Re: My '79 CB650
« Reply #76 on: May 19, 2009, 04:16:30 PM »
yes.


l8r

If we lived closer, I'd trade you mine.  But I think it'll cost too much to ship them.

Offline cb650

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Re: My '79 CB650
« Reply #77 on: May 19, 2009, 04:24:51 PM »
Ok Eureka moment.  I should have cought this years ago but didnt investigate and forgot.
One way to tell the dual from a single disk wheel is the cover on the none disk side bolts on to threads on the wheel.  The dual disk is straight through for a long bolt.  I'll look this week end and see what else I have.  If you get a chance to make another deal I'll trade back. Like I said before I dont really need this exhaust.
18 grand and 18 miles dont make you a biker

Offline Hush

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Re: My '79 CB650
« Reply #78 on: May 20, 2009, 01:15:12 AM »
My 82 Custom 650 had reversed Comstars and my 79z 650 has standard Comstars, my choice would be the standard ones cos they look tidier but as you say Soos, it's all a matter of personal taste.
Oh those isolators are so much softer than my old originals, guess one year versus 30 years of exposure ha ha..........yet to fit, am saving that for Friday when I will get some "me" time. ;D
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 Soos

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Re: My '79 CB650
« Reply #79 on: May 23, 2009, 08:46:03 AM »
Well I got my clubmans on today.

I like them (so far) visually, and as to the location they put my hands at.



If I find the camera I'll take pics.
(my wife is bound to not let me use it I think)


Re-routing the clutch and throttle cables over the headlight did well to take up the extra slack.




Oh, and the bolt replacement fix for my front rim is still holding up.
I wish they would open up the alpine loop!!!
I NEED a good 2 hour canyon ride!

l8r
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(61mm)652cc 1979 cb650

Offline Hush

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Re: My '79 CB650
« Reply #80 on: May 24, 2009, 12:14:04 AM »
 ;DSuggestion Soos, let her take the photo!
Hey she's bound to make a decent job of it and you can show us your new riding position.
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 Soos

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Re: My '79 CB650
« Reply #81 on: May 24, 2009, 10:51:25 PM »
No pics yet, but I went for my first rel rain ride of the year.
I'm quite happy with the tires I bought.

Look a bit off-roadish, but handle deep water at speed without any floating feelings.


The handlebars lower like this put more weight on the front end I can tell.
I think I need to re-adjust my rear suspension setting 1 or 2 notches up.
Just seems too soft in the rear now.

The angle isn't perfect, but it's not uncomfortable.
Love how the "U" shaped area kinda hugs the gauges though.
The cables look more hidden to me, not quite as viewable from the side.



will post pics soon.

Mabey a video once they open alpine loop.





L8r


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(61mm)652cc 1979 cb650

Offline Soos

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Re: My '79 CB650
« Reply #82 on: June 02, 2009, 12:34:01 PM »
Sorry no pics yet people.....



But anywhoo....
Last night I was wandering through the parts closet of mine, and looked at the '81 cb650c front end I have.
I spotted the air caps for the forks, and though what the heck, I'm dropping those on my '79's forks tonight.

I put them on, and they fit good, except the clubmans interfere with them.
It's the schrader valve that is getting in the way of letting the clubman bars go back to the position they were in before....

Thinking of unscrewing the valve, and plugging the existing hole, and drilling and tapping a hole 90 degrees from where it sits now.
Not too sure it's worth it though.





l8r
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Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline Soos

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Re: My '79 CB650
« Reply #83 on: June 27, 2009, 06:12:23 PM »
Well, the clubmans with the air assist parts added to the forks is working well.
Ok for short stints(under an hour) at low speed(under 50mph), or several hours at 65+mph.

long times at low speeds kills the back.
I'm getting old, should have gone for the daytona bars I think.






But anyways.......
I'm re-jetting (again) for my 32mm carbs.
OK at my elevation(roughly 4,500), but my last 10,000+ft ride I was on the plug chop I did showed rich at WOT.

Other than my bars, and re-jetting no major changes so far this year.
Been quite happy.






l8r



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Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline Frankenkit

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Re: My '79 CB650
« Reply #84 on: June 27, 2009, 09:34:47 PM »
Cool! We were missing you! Where have you BEEN? :)
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Offline Hush

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Re: My '79 CB650
« Reply #85 on: June 27, 2009, 10:20:26 PM »
Snowed in probably, I get this mental picture of the whole of Canada and the states under like 6 feet of snow during winter. ;D
Yeah I know, grass skirts, the haka, flightless little brown birds no one ever sees....that's NZ. :D
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 Soos

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Re: My '79 CB650
« Reply #86 on: June 28, 2009, 12:00:44 PM »
Cool! We were missing you! Where have you BEEN? :)


Been laid off from work, up to wyoming, out to colorado, and around utah.
Now that I am re-scheduled to daylight hours from the last 3 1/2 years of shift work I have been busier than ever around my house(and neighbors).
Nothing like no $$ a family and a house payment to take care of to get a fire burning under ones arse to do those little jobs.




l8r
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Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline Soos

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Re: My '79 CB650
« Reply #87 on: June 28, 2009, 12:10:57 PM »
Been laid off from work, up to wyoming, out to colorado, and around utah.


Looking for a good job......



l8r
-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline RM81

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Re: My '79 CB650
« Reply #88 on: July 07, 2009, 09:32:32 AM »
Any luck yet?

Offline manjisann

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Re: My '79 CB650
« Reply #89 on: July 07, 2009, 10:36:17 AM »
Quote
Been laid off from work

I'm sorry that really sucks. Guess that explains your absence from the boards. Hope you find something soon!

Brandon
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Offline Soos

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Re: My '79 CB650
« Reply #90 on: July 08, 2009, 12:40:00 PM »
Me too, eventually something will present itself.
Like a vacation gone awry, too much of anything is just that too much.
Got time and no money, so nearly all my projects are on hold for now.


Another mod lately, I took the kawasaki carbs back off to hack the cable hanger for the throttle cable.
Works like a charm.
I cut off the "push" cable hanger, and used a oxy/MAPP gas welder to "weld" it to the hanger for the pull cable, but about 5/8" higher up.
That took all the slack I was having a problem with before.





Been loving these kawasaki carbs. Too bad their trist with this particular motor will not last too much longer.
I plan on my next motor to use a CV cb650 head, so I will park these in anticipation of that project.
My '79 cb650 will be getting my cb750 carbs back on this winter.
I REALLY miss that choke lever.......


Now if I could only get ahold of a reliable, and cheap to re-build 32mm(or 30) mechanical linkage carbs that have the same spacing as the cb750(and early cb650) carb spacing.....  for free or cheap.
:)







l8r
-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline Hush

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Re: My '79 CB650
« Reply #91 on: July 08, 2009, 03:13:51 PM »
Hey Soos, sorry to hear of your work (or lack of it) troubles, it's a world wide thing, we have 1000 Kiwis a week losing their jobs and we only have 4 million people so getting another job aint gonna be easy for them.
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 Soos

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Re: My '79 CB650
« Reply #92 on: July 18, 2009, 10:01:06 PM »
Still nothing on the job front... Oh well.




But anyways, I've either been hoodwinked, or found a new trick.
A ex-coworker introduced me to a "race tune expert" he knows.  ???
Dunno, but he did have a LOT of tools and gadgets for bikes.


Anyways he "hot tuned" my carbs.
He hooked this unit up on my bike that read the 4 pipe temps as you rode.
Basically 4 LED's reading temps of each sensor.
The sensors were stuck to the pipes with magnets I think, I didn't see anything else.

He ended up lowering the jet needle clip one position(richer I think) and jetted the outter 2 at 108's, the inner 2 cylinders at 110's.


Anyone heard of "hot tuning"?
Is this BS?
I would think jetting the inner 2 cylinders richer bad for the engine.
Ok, it sounds bad to me.


Thank god for welders burn cloth. I HATE taking off and putting on carbs on a hot engine.


I have noticed a jump in MPG though.
Last 2 tanks (with the new jetting)I have averaged 41 and 43 MPG.
I was averaging 34-38mpg before this jetting.



I'm happy (so far).






l8r



-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline Hush

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Re: My '79 CB650
« Reply #93 on: July 19, 2009, 12:37:55 AM »
At least you wont be bored while unemployed mate, I was unemployed for 3 years once, bad timing as kids were at high school and everything they did cost money, I got my taxi licence and drove for a while before becoming a limousine chauffeur, drove for the government all over the country.
Hang in there bro and report back on that hot tune stuff, is the bike any faster? :)
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: My '79 CB650
« Reply #94 on: July 19, 2009, 01:14:06 PM »
hmmm, hot tuning sounds quite interesting. did he have it on some sort of dyno, or did the things hang on there while you rode it around the block? Sounds a lot easier than a plug chop!

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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1980 CB650 Custom
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Offline RM81

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Re: My '79 CB650
« Reply #95 on: July 20, 2009, 07:42:23 AM »
Soos,
Do you have any pictures of the rear fender swap from the later model 650?  After fighting the stock airbox I'm thinking of switching over to pods on my 79.

Offline Soos

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Re: My '79 CB650
« Reply #96 on: July 21, 2009, 10:17:40 PM »
At least you wont be bored while unemployed mate, I was unemployed for 3 years once, bad timing as kids were at high school and everything they did cost money, I got my taxi licence and drove for a while before becoming a limousine chauffeur, drove for the government all over the country.
Hang in there bro and report back on that hot tune stuff, is the bike any faster? :)

As for faster... not at my elevation.
Or at least not enough to notice.

At 8900 feet elevation, yeah it is a bit more noticable.
much less bog.

But the jets I was using were:
1) too big(112's)
2) wrong type - I used cb750 jets, the head is 1-2mm taller, meaning the jet sits 1-2mm lower in the bowl, thereby enrichening the system(and the jet needle probably never really seated properly) Thread is the same, just taller head.



So I've started my next tank, and I'm trying to consciously be gently to the throttle to get better MPG.
If they bust 50mpg, I may not put the cb750 carbs back on.
Gawd I love these carbs.







Old&Rusty...
Yeah I do.....
Somewhere.   If you use a '81/'82 inner fender, it still bolts up as the stock '79 fender/airbox does with the chrome rear fender part.

You do loose the mount for your CDI's, and the voltage reg/rec I believe.
Something to think of if you do it.
At one time I ran with a similar setup, and used an aluminum plate cut and bent to bolt to the frame under the seat and allow the bits to be re-located onto it from the airbox.

Somewhat of a PITA, but the clean look is worth it if thats your goal.
But so are pods.





As for the "hot tuning"

No dyno, he used a LED screen that hung on the bars that allowed him to read the exhaust temps as he rode.(He wouldn't let me ride with the thingy on)
He adjusted the  jetting/needle position accordingly to get "optimum" temps at peak HP(RPM) for the motor.

I ended up taking out the carbs 1 too many times IMO, ok mabey 4...


So I got to ask him where he got it, and he said a buddy that works in a muffler shop hooked it all up for him several years ago.
He swears by it.
Nothing more than 4 temp sensors, a little black box about 4 inches long and 2 high, about 1 1/2 - 2 inches thick.
4 LED screens show temps in real-time.
The temp sensors are held on by rare earth magnets, he says the only motors he can't tune(well) with this is turbo systems.
The exhausts of turbo's can get hot enough to make the exhaust non-magnetic at times(or so he says).


Dunno, I'm happy.
With my range going from roughly 170 miles to 215 miles a tank is good to me.
The less $$ I have to shell out at the moment is a gosdsend.






l8r

-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline Buber

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Re: My '79 CB650
« Reply #97 on: July 22, 2009, 12:41:43 AM »
About economy - hmm, I'm getting now 47 without any fuss, I used to have 50, (I have CV carbs) but my riding habits changed after trying a bigger bike..:D
I recall that pinhead used to get even better mileage. So, there's place for improvement
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Offline Pinhead

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Re: My '79 CB650
« Reply #98 on: July 22, 2009, 12:54:12 AM »
My mileage varies; though the lowest I've gotten is 47 mpg. 55 mpg has been a good running average but I've gotten as high as 70 mpg.
Doug

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Offline Hush

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Re: My '79 CB650
« Reply #99 on: July 22, 2009, 03:45:16 AM »
I'm getting my carbs pro synced today, the engine just didn't feel right.
I don't think I get great mileage on my old 79 but I just love riding the damn thing so Godamn much I keep running out of gas cos I forget to fill up :D
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!!!!!!!