Author Topic: RAT BIKE build (72' CB750K)  (Read 17773 times)

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Offline DustyRags

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Re: RAT BIKE build (72' CB750K)
« Reply #25 on: November 26, 2013, 11:24:18 AM »
Nice! Looks like a runner!
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline Skonnie Boy

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Re: RAT BIKE build (72' CB750K)
« Reply #26 on: November 26, 2013, 02:40:33 PM »
RAT is the Way and the Light. Nice work.

In the immortal words of some sign I saw on an old Triumph race bike, "clean don't make it go faster."

Well, unless we're talking carbs or oil lines. But you know what I mean.

A
"Yeah, I'm hip about time. But I just gotta go."

Offline Syscrush

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Re: RAT BIKE build (72' CB750K)
« Reply #27 on: November 26, 2013, 07:47:27 PM »
Cool build, good luck with it!

Quote
I wanna be able to say " my 300$ piece of.. beauty bike just smoked your 4 grand pretty princess bike
Hmmm... The list of bike available for $4k that can outperform even the most expertly built mega-budget CB is long. I guess it depends what you mean by "smoked" and "pretty princess" ;)
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #28 on: November 26, 2013, 09:27:34 PM »
Nice! Looks like a runner!
Thank you sir! I still need to adjust the carbs but I'm waiting until I get my muffler for it.

RAT is the Way and the Light. Nice work.

In the immortal words of some sign I saw on an old Triumph race bike, "clean don't make it go faster."

Well, unless we're talking carbs or oil lines. But you know what I mean.

A
Im absolutely in love with that quote. I might put it on the inside of one of the side covers. ;D

Cool build, good luck with it!

Quote
I wanna be able to say " my 300$ piece of.. beauty bike just smoked your 4 grand pretty princess bike
Hmmm... The list of bike available for $4k that can outperform even the most expertly built mega-budget CB is long. I guess it depends what you mean by "smoked" and "pretty princess" ;)
Thank you, and yeah maybe 4 grand is a little far fetched lol.

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #29 on: November 26, 2013, 09:29:43 PM »
Heres the final mockup of the strap. I already welded it together and i'm just waiting to paint it now and then fabricate the brackets that will mount to the frame.


Untitled by zekd, on Flickr

Offline CBcafeJunkie

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Re: RAT BIKE build (72' CB750K)
« Reply #30 on: November 27, 2013, 09:15:12 AM »
Looks good man

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #31 on: November 29, 2013, 10:54:11 PM »
So today I spent countless hours trying to figure out how I was going to make the seat work with the tank bracket (the seat had a flat pan and had no indent for the bracket to go around). I was going to originally cut the tank bracket off and think of a new way to mount it but I scratched that idea and decided to do a ballsy move and modify my brand new seat that I bought. This was going to be my last resort and it actually worked out really well. It took about 2 hours to transform it.


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr

It looks a little lopsided due to the photo. sorry!

Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Offline DustyRags

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Re: RAT BIKE build (72' CB750K)
« Reply #32 on: November 30, 2013, 07:49:49 AM »
Nicely done! Custom stuff is designed to be customized, after all!  ;D
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #33 on: November 30, 2013, 07:34:06 PM »
Today I got my rear loop! The angle and the seat didn't go together really well. So instead I turned the up curved seat into a flat seat by just bending it and making it flat. Then I cut the angle out of the rear loop and made it flat. Check the photos out! Ill be leaving tomorrow to go back up to college. Ill be back in 2 weeks. In the meantime ill be ordering some parts!

Anyone have any good tire recommendations? Im not trying to spend a fortune.


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Offline Skonnie Boy

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Re: RAT BIKE build (72' CB750K)
« Reply #34 on: November 30, 2013, 09:28:48 PM »
I bought some Bridgestone Spitfires real cheap on closeout. They have yet to kill me or maim me. They're no Battlaxes, but they're OK.
"Yeah, I'm hip about time. But I just gotta go."

Offline SOHC4 Cafe Racer Fan

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Re: RAT BIKE build (72' CB750K)
« Reply #35 on: November 30, 2013, 11:22:43 PM »
Today I got my rear loop! The angle and the seat didn't go together really well. So instead I turned the up curved seat into a flat seat by just bending it and making it flat. Then I cut the angle out of the rear loop and made it flat. Check the photos out! Ill be leaving tomorrow to go back up to college. Ill be back in 2 weeks. In the meantime ill be ordering some parts!

Anyone have any good tire recommendations? Im not trying to spend a fortune.


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr


Untitled by zekd, on Flickr

The flat seat and hoop look great.  Nice upholstery.
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 zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #36 on: December 01, 2013, 09:11:54 AM »
The flat seat and hoop look great.  Nice upholstery.

thank you sir!

Offline DustyRags

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Re: RAT BIKE build (72' CB750K)
« Reply #37 on: December 01, 2013, 10:26:14 AM »
Agreed, that seat looks great like that!
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #38 on: December 02, 2013, 01:52:59 PM »
Ok now I need your guys help. I just got back to college and I brought up my set of carbs. I need to change the needle height and the jet size I believe. Im running a stock air box with a 4 into 1 exhaust with a shorty baffle on the end from DCC. Heres my question, how many need clips should I go up (or down)? And also, should I change my jet size??


Untitled by zekd, on Flickr

Offline CBcafeJunkie

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Re: RAT BIKE build (72' CB750K)
« Reply #39 on: December 02, 2013, 01:58:17 PM »
Really like your seat, I'm looking to do the same to mine except ill throw a cafe hump over the back when wife is not riding. Btw how much was your angled hoop?

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #40 on: December 02, 2013, 02:06:32 PM »
Really like your seat, I'm looking to do the same to mine except ill throw a cafe hump over the back when wife is not riding. Btw how much was your angled hoop?

Thanks Man! The loop was 70$ I believe off eBay (with free shipping ;)). It was a great deal to just buy one instead of spending the time and resources to bend a perfect hoop. I bought an angled one thinking I was going to keep the upsweep in the seat but the angles didn't fit perfectly so I just bent the aluminum seat pan for the flat look.

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #41 on: December 08, 2013, 03:23:27 PM »
UPDATE!

Hey guys, so I found a complete front end to a gsxr 1000. The guy is asking 280$ for it!! Sucha steal. Im picking it up tomorrow.


Screen Shot 2013-12-08 at 6.18.54 PM by zekd, on Flickr

also, I cleaned my carbs... once again. I get bored up at college so I thought it would be a good time to work on carbs in my dorm room.


Untitled by zekd, on Flickr

Offline DustyRags

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Re: RAT BIKE build (72' CB750K)
« Reply #42 on: December 08, 2013, 07:11:49 PM »
Lookin' good!
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline Syscrush

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Re: RAT BIKE build (72' CB750K)
« Reply #43 on: December 12, 2013, 11:19:43 AM »
That's an amazing price.  Good luck getting something worked out with that front end.
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #44 on: December 22, 2013, 06:08:44 PM »
UPDATE! I finnaly broke down and bought a sand blaster from TS. It works really well. Im painting my wheels black so I removed the wheels and then made a tool to get the bearing retainers out (see pic below). Make sure you drill out the center punches!  I then sandblasted the wheel parts and sprayed them with some paint.

I NEED HELP!!! I dont know how to get the rear wheel bearing out. I need some tips/advice on how to get it out. Please share some insight with meee!!


1506240_10202596560933521_857706509_o by zekd, on Flickr


1501028_10202596560813518_1268210802_o by zekd, on Flickr


1490827_10202596560853519_1040630593_o by zekd, on Flickr


1465881_10202596560773517_1412182811_o by zekd, on Flickr


1501009_10202596561693540_962721643_o by zekd, on Flickr


1504183_10202596561733541_252343525_o by zekd, on Flickr

Offline DustyRags

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Re: RAT BIKE build (72' CB750K)
« Reply #45 on: December 22, 2013, 10:56:01 PM »
Lookin' good!

Thought you'd painted your rotor at first, and was about to go all nutsy on you, but then saw the tape. Whew!
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline zekd

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Re: RAT BIKE build (72' CB750K)
« Reply #46 on: December 23, 2013, 11:32:52 PM »
Did some more painting. I figured the idea out for  the gas tank. Im going to pain it two colors, gloss black and matte black. Its going to resemble the original honda cb designs but its going to be a more badass aggressive look.


733790_10202603940758012_41498587_n by zekd, on Flickr


1502264_10202603940077995_164633122_o by zekd, on Flickr


1421240_10202603939957992_1203505823_o by zekd, on Flickr


1501593_10202603939917991_1570294075_o by zekd, on Flickr


1500951_10202603939997993_1452737146_o by zekd, on Flickr

Offline lwahples

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Re: RAT BIKE build (72' CB750K)
« Reply #47 on: December 24, 2013, 03:49:10 AM »
Looking great! Looks like it will be ready for warm weather in the Spring.

Offline WhyNot2

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Re: RAT BIKE build (72' CB750K)
« Reply #48 on: December 24, 2013, 04:57:39 AM »
'scribed..........waiting to see what you do to the tank.

Looks great so far.
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Offline DustyRags

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Re: RAT BIKE build (72' CB750K)
« Reply #49 on: December 26, 2013, 09:26:24 PM »
Ooh, I like that tank idea!
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold