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Author Topic: Finally, first build 99% done, '82 CB650SC  (Read 6804 times)

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Offline Erik in sac

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Finally, first build 99% done, '82 CB650SC
« on: March 14, 2015, 10:29:41 AM »
Hi guys, new here.  I dig the forum, I usually just browse the good, helpful info shared here. :)

Bike is a 1982 Honda CB650SC nighthawk.  I bought the bike, mostly running for $300.  I tore it completely apart, put a bit over 330 hours into it, rebuilding the motor, clutch, carbs, custom frame mods, cleaning, paint, etc.  Has a 2006 GSXR front end on it.  Completely custom electronics and retained all OEM things like blinkers, etc.  Gauge is the TNT by Koso.  Has a GM HEI ignition, aftermarket VR124 Regulator and 50A Rectifier ( https://scontent-sjc.cdninstagram.com/hphotos-xaf1/t51.2885-15/e15/10949041_1607697059449792_1367048775_n.jpg ), ballistic 8C LiFe battery, etc.  Its been a fun project, with only a few tuning and hiccups along the way.  Here are all of the build pics:  http://ebaudio.com/MyPics/index.php?path=1982_honda_cb650sc
my goal was to go through everything and try to make a fully restored cafe bike.  Not the best platform to start with, but it has been a fun and enjoyable project :)

Most recently, I just finished painting the tank ford grabber blue.  still a few small issues that I am slowly weeding out.  Gets to 100 faster than my car easily too haha







bike when I got it




and mostly completed.  pic below from first the first ride, notice my flat rear tire lol. had bad luck, tire was low, forgot to recheck.  came off the bead.  also had an issue with the front brake locking up.  turns out that is something aftermarket evers cause on the gsxr master cylinder.  I machined down the plunger rod in the MC and it solved that issue.









Thanks for looking.  I have some pics and info also on my IG page if youre interested.  its almost my build log too lol. https://instagram.com/erikinsac/
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Offline Restoration Fan

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #1 on: March 14, 2015, 10:42:28 AM »
I've always like the lines of the tanks on that era Nighthawk and I'm digging the blue color you painted it.

Very nice job.
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Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline SOHC4 Cafe Racer Fan

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #2 on: March 14, 2015, 12:26:55 PM »
Very nice bike.  You got the "ugly" out of the Nighthawk -- not the easiest thing to do.  The bike looks very tidy.

Any modifications to the engine (big bore, porting, cam, etc.)??
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1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Erik in sac

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #3 on: March 14, 2015, 01:31:38 PM »
Thanks guys!  The engine was just rebuilt on the top end.  Honed, new rings, valve seals, cleaned the head and lapped the valves.  everything is stock internally.  I just wanted it to run well, wasnt worried about ultimate power.  The bike is under 400lbs.  I can jerk lift both wheels off the ground, its light, so that helps ;)
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JWExperience

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #4 on: March 15, 2015, 01:19:23 AM »
Jerk lift? Sounds dirty. Nice bike.


'76 cb750k, '78 cb750f 'Merica Edition
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Offline Puffin

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #5 on: March 15, 2015, 02:32:18 AM »
Wow... Pretty impressive for a first build.  I really like it, looks mean...
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Honda CB500 four
Honda CB350 four (under construction)

1972 Cb500 Rebuild Project - http://forums.sohc4.net/index.php/topic,145835.0.html

Offline arvinwijsman

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #6 on: March 15, 2015, 10:21:20 AM »
Loving this!!!! Great proportions and i love the gauges!
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Offline Erik in sac

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #7 on: March 19, 2015, 11:20:33 PM »
thanks guys!

JWE, yeah, didnt know what else to call it. LOL
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Offline Jore

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #8 on: August 08, 2015, 12:25:25 AM »
Looks great, are the hei modules controlled by the points?
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1975 CB400F owner
-Having a vintage motorcycle is like having a moody girlfriend.

My 466 build: http://forums.sohc4.net/index.php/topic,146494.0.html

Offline SOHC4 Cafe Racer Fan

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #9 on: August 08, 2015, 08:52:06 AM »
Erik,

Where did you source the seat?  Are you happy with it?  Construction, etc.? 
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1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline darkside1994

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Re: Finally, first build 99% done, '82 CB650SC
« Reply #10 on: April 25, 2016, 08:57:05 PM »
Any chance you still have that back rest from the original bike?
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1982 CB650SC - A work in progress
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