Author Topic: My first bike: '78 CB750k  (Read 54504 times)

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Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #250 on: April 04, 2013, 07:26:47 PM »
Impatiently waiting....
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

fendersrule

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Re: My first bike: '78 CB750k
« Reply #251 on: April 05, 2013, 04:39:21 PM »
No pictures of the tank yet..it's covered in masking paper because I'm flushing/soaking it.

Man, the paint and stripes turned out better than I expected. It screams vintage and classic at the same time. You guys will have to see the tank later this weekend when I'm finished with it.

Until then:









fendersrule

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Re: My first bike: '78 CB750k
« Reply #252 on: April 05, 2013, 05:09:14 PM »
This is a better picture showing the Valley Green Metallic.

Tons better than Freedom Green Metallic, which has way too much blue in it IMO.



Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #253 on: April 05, 2013, 07:23:17 PM »
Hey Fenders - when I looked at the first pic I thought there were smudges on it. Then when looking at the others I figured out that that it was the reflection of the clouds!

Looks fantastic, love the color.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Frankensteins Bride

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Re: My first bike: '78 CB750k
« Reply #254 on: April 05, 2013, 07:35:05 PM »
That colour is freaking  beautiful!
Working on: 78 Cb750k
Waiting for arrival: 73 Cb750

Frankensteins Wolf

fendersrule

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Re: My first bike: '78 CB750k
« Reply #255 on: April 05, 2013, 08:46:35 PM »
Uploaded with ImageShack.us
Uploaded with

fendersrule

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Re: My first bike: '78 CB750k
« Reply #256 on: April 05, 2013, 08:47:19 PM »
Thanks guys for the comments. The vintage color and the stripes matched better than expected. It's truly a '78 that has all the retro options.

fendersrule

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Re: My first bike: '78 CB750k
« Reply #257 on: April 06, 2013, 07:41:59 PM »
Took her out on the maiden voyage today after replacing the fuel line and fuel filter.

Drives like a champ!










Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #258 on: April 06, 2013, 07:52:43 PM »
Very nice, great job.  Now what??
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

fendersrule

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Re: My first bike: '78 CB750k
« Reply #259 on: April 06, 2013, 07:58:56 PM »
Drive it to death and work on the CB450! That's undergoing a frame-off resto. Then the CB750 will undergo a frame-off.

Really nothing else to do on the CB750 except for painting the frame and rebuilding the engine in a couple years. That also includes rejetting the carbs (making sure they are stock) and putting the air box assembly back on it.

Bike runs, drives, and feels very nice. Best of all, it feels safe because I've done most everything.

Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #260 on: April 06, 2013, 08:10:52 PM »
Does yours start right up when cold? My K8 does now, but the starting procedure is differant than the K4. Since it has an accelarator pump, I pump it a couple times before cranking.
The K4 likes no throttle when cold cranking until it fires.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

fendersrule

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Re: My first bike: '78 CB750k
« Reply #261 on: April 15, 2013, 06:30:05 PM »
It's cold blooded like every other CB750. Gotta crank open the choke, and then just ease it off in 20 seconds. Once it starts it gets warmed up quick enough.

I haven't found that giving it throttle does any good for cold starts.

Offline andy750

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Re: My first bike: '78 CB750k
« Reply #262 on: April 16, 2013, 07:43:14 AM »
It's cold blooded like every other CB750.

This is a misconception. My K2 is NOT cold blooded and start up with choke (10 secs) then is good to go (117 mains/40 pilot). Its all about the carbs. Had this experience with other pre-75 bikes. Perhaps the later model 750s are....

Anyway great job on the paint - looks really good! Now drive and enjoy!

cheers
Andy
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline cheftuskey121

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Re: My first bike: '78 CB750k
« Reply #263 on: April 16, 2013, 07:55:38 AM »
Sweet baby Jesus that's pretty!

Offline iron_worker

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Re: My first bike: '78 CB750k
« Reply #264 on: April 16, 2013, 08:03:28 AM »
Yes I believe the "cold blooded" myth came about because the pilot jets clog so easily on these bikes. After a thorough cleaning of my carbs the cold starting 100x better.

IW

fendersrule

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Re: My first bike: '78 CB750k
« Reply #265 on: June 10, 2013, 08:51:08 PM »

Installed a much nicer oil tank. Has the label and all.




Installed the Airbox with a K&N filter. Good riddance pods!

Bike is finished aside from a vacuum hose and a quick checkup-tuneup from the local hog shop. Time to start on the CB450...wait, I already did. Frame is off for powder-coating. Wish those guys are as active as you guys on the HondaTwins forum!
« Last Edit: June 10, 2013, 08:53:19 PM by fendersrule »

Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #266 on: June 11, 2013, 05:58:51 AM »
I would not bring it to a "hog shop".   Why do you want to do that?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline deafcaferacer

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Re: My first bike: '78 CB750k
« Reply #267 on: June 11, 2013, 06:42:19 AM »
That bike is beautiful! I'm envious.
'73 CB750k engine, hubs, and a '76 tank, on 'a 78 frame. Go figure.

fendersrule

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Re: My first bike: '78 CB750k
« Reply #268 on: June 11, 2013, 08:08:30 AM »
I would not bring it to a "hog shop".   Why do you want to do that?

http://www.hogsandriceonline.com

I think it wouldn't be a bad idea to have an old geezer who loves these bikes fine tune the carbs using specialized equipment, and to double check everything else. For example, I've been driving around with my front axle lose for the past 300 miles.

Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #269 on: June 11, 2013, 02:53:47 PM »
What kind of "specialized equipment"?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

fendersrule

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Re: My first bike: '78 CB750k
« Reply #270 on: June 11, 2013, 04:16:11 PM »
Those things you put in the exhaust to measure the air/fuel mixture....the knowledge to FINE tuning that I don't have...:(

I need to rebuild my front brake caliper. Trying to chase down a squeak.


Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #271 on: June 11, 2013, 04:41:58 PM »
The squeak may not be the caliper but the rotor and pads, a very common issue (my K4 is notorious).

Do a search for some remedies that guys have done including new pads, lube and scuffing the rotor.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

fendersrule

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Re: My first bike: '78 CB750k
« Reply #272 on: June 11, 2013, 05:12:41 PM »
It's got new pads, and I definitely lubed the back of them quite well.

It happens independent of braking, even though I think braking makes it go away.

Same with you?

Offline Stev-o

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Re: My first bike: '78 CB750k
« Reply #273 on: June 11, 2013, 07:03:05 PM »
It's got new pads, and I definitely lubed the back of them quite well.

It happens independent of braking, even though I think braking makes it go away.

Same with you?

No, mine squeals when brake is applied. 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

fendersrule

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Re: My first bike: '78 CB750k
« Reply #274 on: June 11, 2013, 09:08:22 PM »
Yeah. That's normal for these bikes.

I'm thinking my caliper needs a rebuild, though I can't find any rebuild kits for a k. Then I need to see if I need a piston to go along with it. Ugh!