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Author Topic: cb 650 bobber  (Read 10213 times)

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brainlessbiker

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cb 650 bobber
« on: November 28, 2008, 06:46:08 PM »
i'm just starting my CB 650 hardtail bobber project.
i blew a 5 inch hole in the crank case and figured it was time to rip the bike apart.


the bike before the tear down





just to see what it look like with apes


the new hard tail dropouts

the frame conection

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Offline DaytonGuy

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Re: cb 650 bobber
« Reply #1 on: November 29, 2008, 06:59:51 AM »
OK...was that an E-Z curl bar you had on there as handle bars?  If so, it looked pretty sweet.  I've got one in the basement collecting dust (on the floor next to the storage shelf I used to call a weight bench).  I might pull it out and see how it looks. 
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brainlessbiker

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Re: cb 650 bobber
« Reply #2 on: November 29, 2008, 10:09:11 AM »
ya
when i got the bike it had the stock bars on it and i hated them so i took on of the bars from an old weight machine
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Offline DaytonGuy

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Re: cb 650 bobber
« Reply #3 on: November 30, 2008, 07:49:44 AM »
So are you planning a true hard tail frame or are you going to install struts where your shocks were?  I think I'm going to build a bobber style bike with my 550.  I don't have the tools for a lot of fabrication so I think I'm going with struts.

And what are those little bracket things again?  Hard Tail drop outs?
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brainlessbiker

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Re: cb 650 bobber
« Reply #4 on: November 30, 2008, 12:04:42 PM »
it will be a true hard tail. i am replacing the back 3/4 of the back bone, and welding on to the pipeing. the frame cut out is for the right side of the frame where the botom of the frame has to come out for the motor to come out. as well as possibly converting to jockey shift with a hand clutch.
i am also doing a fake oil bag for my electronics and battery. and possibly narrowing the tank to a more peanut shape
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Offline ghost

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Re: cb 650 bobber
« Reply #5 on: November 30, 2008, 12:28:16 PM »
i like the look your starting with. i'm interested to see how this turns out. maybe i'll fallow your lead with my 650 next winter.   nice hole in the crankcase by the way
« Last Edit: November 30, 2008, 12:30:55 PM by ghost »
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1980 cb650c first bike i owned now the wife's ride.           1982 xv920j virago, bike i learned to ride on rescued it from a 13 year coma (sitting in the shed) now she runs beautifully and rides like a dream.

Offline rachet

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Re: cb 650 bobber
« Reply #6 on: November 30, 2008, 01:35:52 PM »
I plan on building a bobber one day (after the Cafe') and I'm digging your start.  I like the curl bar better then the Ape Hangers, but of course, that's a personal preference.  Keep it coming!

Rachet~
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But I need Tacos!  I need them or I will explode!

brainlessbiker

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Re: cb 650 bobber
« Reply #7 on: December 23, 2008, 01:09:40 AM »
just thought i would post an update. my life has been busy with the birth of my son Jaxon Cru. but i have done a little work.


couldn't help but to put my son on here

the template for my pan seat

double up the template onto 16 gauge steel

adding a curve to the seat

final bare seat pan.
i am going to foam and cover it in black leather.


new seat pan and the new sportster king tank on the stock frame.

the new rear end and back bone all bent and ready to be installed

new rear fender it going to just be a flat fender with 1/4 inch round welded to the bottom of each edge.


thats all for now

but i really need to picka color your guy's input would be awesome. i'm going mid 70's style bobber
« Last Edit: January 05, 2009, 02:22:43 AM by brainlessbiker »
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Offline Hush

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Re: cb 650 bobber
« Reply #8 on: December 23, 2008, 01:51:51 AM »
All good but what are you going to do for a donkey? your last engine looked a bit coozed. ;D
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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!!!!!!!

brainlessbiker

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Re: cb 650 bobber
« Reply #9 on: December 23, 2008, 02:16:48 AM »
theres a motorcycle wrecker in calgary. i can pick up any motor for $1 a cc
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Offline Soos

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Re: cb 650 bobber
« Reply #10 on: December 23, 2008, 06:15:23 AM »
So... what caused the hole?  ???
Nice work there, and the bike looks good too.
 ;D
Quote from: brainlessbiker on November 30, 2008, 12:04:42 PM
possibly converting to jockey shift with a hand clutch.

Do you mean jockey shift and FOOT clutch, or a hand clutch on the jockey shifter?
I like the fake oil bag to hide the electrics.

If you get in a pinch, you could throw a 550 motor in there, and gain a kicker.
A little less motor, but as you are reducing weight already, you might not really notice any less power.

A kicker.
The 1 think I think they should STILL have on bikes.



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

Offline CBGhia

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Re: cb 650 bobber
« Reply #11 on: December 23, 2008, 09:46:00 AM »
Quote from: brainlessbiker on December 23, 2008, 02:16:48 AM
theres a motorcycle wrecker in calgary. i can pick up any motor for $1 a cc

Honestly that sounds expensive.  I have seen whole engines on here for $100.  I couldn't imagine paying $650 for a used engine.   Keep your eyes on the guys parting out bikes.  You may find something good. 

Good luck. 
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CB550 Cafe, GL1000, Buell Ulysses
Quote from: dave500 on February 14, 2014, 03:53:33 AM
if you dont trial spin the camshaft in the head and cover you are a novice,with no natural mechanical appitude,destined for destruction.
"The cleaner the dipstick, the closer to God." -Rev. Horton Heat
“Faster, Faster, until the thrill of speed overcomes the fear of death.”  - Hunter S. Thompson

brainlessbiker

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Re: cb 650 bobber
« Reply #12 on: December 24, 2008, 10:40:16 AM »
jockey shift with hand clutch on the shifter.
the bike threw a rod. it snapped half way up and came right out crank case.
140 km/h with a oil coated rear tire is suer scary to stop


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Offline Soos

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Re: cb 650 bobber
« Reply #13 on: December 26, 2008, 11:51:13 PM »
140kph, what gear? 3rd?? 
87mph... yeah, thats freaky with that much oil...

I'm seriously interested what RPM you were doing, redline shifts?
Or were you too busy accelerating to notice?  ;D ;D



l8r
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-=≡ Soos ≡=-
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: cb 650 bobber
« Reply #14 on: December 26, 2008, 11:53:17 PM »
Quote from: brainlessbiker on December 24, 2008, 10:40:16 AM
jockey shift with hand clutch on the shifter.


Nice.




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

brainlessbiker

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Re: cb 650 bobber
« Reply #15 on: December 27, 2008, 12:31:50 PM »
the bike had no speedo, no tach, i just happen to see what the guy beside me was doin.
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Offline martino1972

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Re: cb 650 bobber
« Reply #16 on: December 27, 2008, 03:53:25 PM »
dude,where do you live??????? im in ponoka myself here and made my own bobber......we should be in contact!!!
here's my building tread,hardtail,jockeyshift,home made seat.....check it out...

http://forums.sohc4.net/index.php?topic=36933.0

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Marti, I want you to know, I like you an awful lot, but guys have said far less and left wearing their drinks on their shirts.
http://forums.sohc4.net/index.php?topic=36933.0  (my bobber)

brainlessbiker

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Re: cb 650 bobber
« Reply #17 on: December 28, 2008, 08:06:18 AM »
i live in cochrane ab. i like what you did with your jockey how is it to ride?
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Offline martino1972

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Re: cb 650 bobber
« Reply #18 on: December 28, 2008, 08:42:04 AM »
oh,it's awesome....i took me abit to get used to it,but now i will never go back to foot shift...just love it...
taking off fast is a bit of a learning curve,due to the one hand on handle bar thing,but once you got that down,it's like any other bike....
only real danger i could see with it,is when your engine seizes up at high speed and you have to pull the clutch in while also keeping the bike under control....but hey,it's a honda,they don't seize.... ;D ;D ;D
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Marti, I want you to know, I like you an awful lot, but guys have said far less and left wearing their drinks on their shirts.
http://forums.sohc4.net/index.php?topic=36933.0  (my bobber)

brainlessbiker

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Re: cb 650 bobber
« Reply #19 on: December 28, 2008, 08:57:46 AM »
  :o???they dont seize??? :o mine did when the motor blew. clunk clunk clunk, grab clutch, huge bang and silence. 140 km/h
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Offline martino1972

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Re: cb 650 bobber
« Reply #20 on: December 28, 2008, 08:59:03 AM »
well,then at least you got behind ya, :D :D :D :D
make her promise not to do that again..... ;D ;D
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Marti, I want you to know, I like you an awful lot, but guys have said far less and left wearing their drinks on their shirts.
http://forums.sohc4.net/index.php?topic=36933.0  (my bobber)

brainlessbiker

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Re: cb 650 bobber
« Reply #21 on: January 15, 2009, 12:47:34 AM »
so the project is going awesome
i have been building like crazy.
the project is at a roller and my new motor should be here friday!!!




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Offline Hush

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Re: cb 650 bobber
« Reply #22 on: January 15, 2009, 02:06:45 AM »
Watchin with interest, keep them piccies coming too pleeez. ;D
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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 CBGhia

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Re: cb 650 bobber
« Reply #23 on: January 15, 2009, 04:26:10 PM »
me likey!   



Damn that tank looks perfect on there.
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CB550 Cafe, GL1000, Buell Ulysses
Quote from: dave500 on February 14, 2014, 03:53:33 AM
if you dont trial spin the camshaft in the head and cover you are a novice,with no natural mechanical appitude,destined for destruction.
"The cleaner the dipstick, the closer to God." -Rev. Horton Heat
“Faster, Faster, until the thrill of speed overcomes the fear of death.”  - Hunter S. Thompson

brainlessbiker

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Re: cb 650 bobber
« Reply #24 on: January 20, 2009, 09:26:21 PM »
just  little update,
 just finished my seat today.

marking out the holes

holes drilled

painted with duplicolor high heat silver

foamed

holes poked in foam

finished in embossed in horned croc hide

the painted and finished underside
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