Author Topic: This is my first CB750F  (Read 14501 times)

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Offline Johnny340

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Re: This is my first CB750F
« Reply #25 on: March 10, 2017, 07:59:58 PM »
Got the oil tank finished today.  Still need to polish the stainless steel and make mounting tabs.
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline calj737

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Re: This is my first CB750F
« Reply #26 on: March 10, 2017, 08:05:35 PM »
That looks really good!

If you heat that up with propane, you can hit with a loose knot stainless brush in your grinder and polish it clean. Use a stainless toothbrush and hit your welds immmediately after welding and they come clean so much easier (when hot). Follow up with a ScothBrite disc, and she'll be mirrored up in no time!
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline SOHC4 Cafe Racer Fan

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Re: This is my first CB750F
« Reply #27 on: March 10, 2017, 10:15:12 PM »
Hey that looks pretty good.  You might want to think about installing a sight glass to be able to check the oil level without having to open the tank.
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 Medyo Bastos

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Re: This is my first CB750F
« Reply #28 on: March 11, 2017, 09:46:19 AM »
I should add: sometime during mock up things look out of place. So you can ignore my comments about what looks right... It's hard to know what's in everyone's mind when they're building a bike and I've fallen victim to offering an opinion that's irrelevant.

Just bust out that bike and get it on the road! :D

that is a really good point.  build it the way that you want, and ride it with your head up high!  good work young skywalker!

Offline Johnny340

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Re: This is my first CB750F
« Reply #29 on: March 12, 2017, 05:12:59 PM »
If you heat that up with propane, you can hit with a loose knot stainless brush in your grinder and polish it clean. Use a stainless toothbrush and hit your welds immmediately after welding and they come clean so much easier (when hot). Follow up with a ScothBrite disc, and she'll be mirrored up in no time!

I'll try that, thank you!

I welded on the rearset mounts..Some adjustment and linkage sorting still to do.  Still just mocking things up to see how they fit before I strip it right down and powdercoat the frame and a lot of parts.
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Johnny340

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Re: This is my first CB750F
« Reply #30 on: October 18, 2017, 02:47:19 PM »
Making some progress on the engine.. (836 Wiseco with CX-3 Cam)
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Johnny340

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Re: This is my first CB750F
« Reply #31 on: November 17, 2017, 04:37:28 PM »
Making some progress on the engine.. (836 Wiseco with CX-3 Cam)
Got the frame kit in.
Now trying to figure out how to mount that seat pan. Originally I was thinking about covering the whole thing in leather but am considering just a seat pad in leather and painting the sides and cowl. Does ABS plastic paint up ok?

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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Johnny340

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Re: This is my first CB750F
« Reply #32 on: December 04, 2017, 09:47:58 PM »

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[/quote]Seat pan mounts, battery box, and Stainless electrical box done.

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« Last Edit: December 05, 2017, 02:49:38 PM by Johnny340 »
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline SOHC4 Cafe Racer Fan

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Re: This is my first CB750F
« Reply #33 on: December 05, 2017, 09:39:35 AM »
I thing that will work, but the placement of the seat mounts will force you to snake wiring, etc. underneath.  Obviously, make sure to not place connectors underneath the cross-member/mount so that you don't have any access issues for repair/maintenance.
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 Johnny340

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Re: This is my first CB750F
« Reply #34 on: December 05, 2017, 02:50:56 PM »
I thing that will work, but the placement of the seat mounts will force you to snake wiring, etc. underneath.  Obviously, make sure to not place connectors underneath the cross-member/mount so that you don't have any access issues for repair/maintenance.
Good advice.  Thanks.  The Motogadget should fit perfectly and be accessible in that larger opening towards the rear of the E-box.
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Godffery

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Re: This is my first CB750F
« Reply #35 on: December 06, 2017, 12:03:33 AM »
 Personally, I'm not having a problem with the use of a round tube on the 750 swingarm. I think trying to use the larger box tubing from another 750 swingarm would have been "Way Over, Overkill".    ;)

 G~

Offline Johnny340

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Re: This is my first CB750F
« Reply #36 on: December 06, 2017, 11:02:22 AM »
This is my last mockup before paint and powder coating.  Satin Black frame and something black and silver for the tank and cowl.  My question is, what about the rear brake stay arm?  Black may be too many black bars back there so I was thinking silver stay arm and all calipers??  Ideas?
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Godffery

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Re: This is my first CB750F
« Reply #37 on: December 06, 2017, 02:48:47 PM »
 Your front end is silver so I would say Silver swingarm, Black brake brake stay & calipers.

Offline Johnny340

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Re: This is my first CB750F
« Reply #38 on: December 06, 2017, 03:12:45 PM »
Your front end is silver so I would say Silver swingarm, Black brake brake stay & calipers.

I hadn't considered that but it makes sense!  I usually see the swingarm the same colour as the frame..
The only other thing to consider could be an accent colour somewhere.  The 'Honda' tank badge is gold and so is the chain and fittings for the oil tank sight gauge (good suggestion Cafe Racer Fan) but all of that could be changed.  Would a slight accent on the calipers break up the black a bit?

You might want to think about installing a sight glass to be able to check the oil level without having to open the tank.
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Godffery

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Re: This is my first CB750F
« Reply #39 on: December 06, 2017, 08:01:49 PM »
I could see the calipers gold.
You could also have the hardware plated gold zinc for a nice accent.
http://www.vinmoto.org/gallery/v/VinMoto-Garage/album03/Godfferys-Garage-123/Parts+and+service/Performance+motor+build/WH-118.JPG.html

Offline Johnny340

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Re: This is my first CB750F
« Reply #40 on: December 06, 2017, 08:49:40 PM »
I could see the calipers gold.
You could also have the hardware plated gold zinc for a nice accent.
http://www.vinmoto.org/gallery/v/VinMoto-Garage/album03/Godfferys-Garage-123/Parts+and+service/Performance+motor+build/WH-118.JPG.html

That gold zinc looks wicked! What engine is that?


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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Godffery

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Re: This is my first CB750F
« Reply #41 on: December 07, 2017, 01:31:59 AM »
 That's a CB550 motor I built a few years ago.

Offline Johnny340

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Re: This is my first CB750F
« Reply #42 on: January 07, 2018, 05:30:53 PM »
The foot pegs were going to be too low so I moved them up. The old top mount for the rear sets is now the bottom mount.
Finished the licence plate mount, regulator/rectifier mount studs on rear of battery box, and squared off the rear hoop for LED light bar.

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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline fireman1073

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Re: This is my first CB750F
« Reply #43 on: January 09, 2018, 07:28:43 AM »
Johnny nice work, i have a 75 750f in that red as a future project

it currently has comstars and dual front caliper set from a 79f

right now i am doing a 75 750k

Steve

Offline Bankerdanny

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Re: This is my first CB750F
« Reply #44 on: January 11, 2018, 02:39:09 PM »
The ABS should paint fine, but you need to use an adhesion promoter for plastic parts.
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Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline Johnny340

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Re: This is my first CB750F
« Reply #45 on: February 13, 2018, 09:28:07 AM »
ABS painted fine with adhesion promoter and flex agent.
Coming along..

1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline calj737

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Re: This is my first CB750F
« Reply #46 on: February 13, 2018, 09:36:19 AM »
Dude! That is bada$$!
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Johnny340

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Re: This is my first CB750F
« Reply #47 on: February 13, 2018, 09:44:25 AM »
Dude! That is bada$$!

Thanks Cal! It's starting to take shape.  Wiring soon..  :)


Hey that looks pretty good.  You might want to think about installing a sight glass to be able to check the oil level without having to open the tank.

Thanks for that suggestion!  See pic.

1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Godffery

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Re: This is my first CB750F
« Reply #48 on: February 13, 2018, 10:25:43 AM »
 Are you actually putting flaming sculls on this beautiful bike or are you just messing with us to see what the reaction would be? 

Offline slikwilli420

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Re: This is my first CB750F
« Reply #49 on: February 13, 2018, 10:28:29 AM »
ABS painted fine with adhesion promoter and flex agent.
Coming along..

Bad ass! Is that a wrap or hydro dip?
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html