Author Topic: 78F New rear frame, seat, and tank stripe.  (Read 31255 times)

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Offline apetersonboy

  • 1978 CB 750F SS
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Front end starting to come together! ipod pics so they look kinda bad.



Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #76 on: August 06, 2013, 09:39:38 PM »
Front end wise I have new bars, bar end mirror, grips, speedo, spray painted triples and new head bearings.
Put my rear wheel on tonight.
Soon it will be able to stand on its own two wheels and not need the lowsy half collapsed milk crate thats holding it up now!  ;D

Offline SOHC Digger

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #77 on: August 06, 2013, 10:08:13 PM »
I don't know why I haven't subscribed sooner.  Keep up the good work! I love the yellow trees.  My project is a 78F and I too will be installing tapered neck bearings.  I will learn from your mistakes :)

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #78 on: August 07, 2013, 06:03:25 AM »
Thanks for the kind words Digger. Just to make sure: It is the thinner washer and goes on the very bottom of the steering stem!

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #79 on: August 07, 2013, 06:20:45 AM »
Moar photos. Put the rear on last night. Still need to find the nut that goes on the end of the axel. Probably just gonna go try to find one at lowes or menards. Napa didn't have one.





Heres a question.
How necessary are the rubber boot things on this brake part? I am missing one on this particular one. Does anyone make replacements? Do I need it? Thanks

Offline SOHC Digger

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #80 on: August 07, 2013, 09:54:04 AM »
The rubber boots are very important.  They will keep contaminants out of your sliders.  They will come with a quality caliper rebuild kit.

I think I should have an axle nut if you still need one.

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #81 on: August 07, 2013, 10:30:36 AM »
I'll check my kits then, thanks. How much do you want for the nut?

Offline SOHC Digger

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #82 on: August 07, 2013, 10:26:29 PM »
Free if you can wait two weeks.  I am using the axle while I paint my frame.  I'll soda blast it and mail it out when I'm done.

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #83 on: August 08, 2013, 12:29:07 PM »
I appreciate it! A lot. But I want to button up the rear within a couple days so I'll probably find one before two weeks. Thanks though. Do you know what kind of threads it has? Course or fine..?

Offline SOHC Digger

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #84 on: August 08, 2013, 05:55:59 PM »
Probably metric.

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #85 on: August 08, 2013, 07:51:13 PM »
Yeah I know its a metric. I was curious about the threading on it whether it is course or fine threaded.

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #86 on: August 08, 2013, 08:41:15 PM »
Caliper rebuild in progress

I put my seal in on the inside of the caliper and lubed it up with some dot 3 to help the piston get in there but the piston keeps catching on the seal.

Should I just push REALLY hard? I've already gave it some umph but not luck. Thought I'd ask on here before I break something.



That recessed part is what is catching.

What do I do?

Offline SOHC Digger

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #87 on: August 08, 2013, 09:10:13 PM »
You're going backwards.  The recessed part doesn't pass the seal.  It's what the dust seal rides on.

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #88 on: August 08, 2013, 09:29:56 PM »
Hahahahaha ::)

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #89 on: August 08, 2013, 09:30:29 PM »
Thank you!

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #90 on: August 09, 2013, 07:46:39 AM »


So I need part #10 but nobody sells it anymore.
Also, I need #13/14 but I don't remember it even being there when I disassembled my brakes.

Anyone know a place that makes these anymore? If not who wants to sell me some?

Offline KRONUS0100

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #91 on: August 09, 2013, 01:48:40 PM »
dont know about 10, i know i guy i can ask if he has some, they are anti rattle springs.  13 and 14 are anti rattle shims, pretty sure i have em in the barn, will have to look later tonite.
MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E

Offline KRONUS0100

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #92 on: August 10, 2013, 01:29:42 PM »
checked barn last night and i do not have either piece.  cant figure out where they went either.  cant get ahold of my buddy either.
MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #93 on: August 10, 2013, 01:41:50 PM »
Well crap. I guess I'll just keep searching around. thanks

Offline blparker

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #94 on: August 20, 2013, 06:13:09 AM »
What kind of tank is on the bike in your profile pic?

Offline RainsongCB750F

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #95 on: August 20, 2013, 12:11:36 PM »
Caliper rebuild in progress

I put my seal in on the inside of the caliper and lubed it up with some dot 3 to help the piston get in there but the piston keeps catching on the seal.

Should I just push REALLY hard? I've already gave it some umph but not luck. Thought I'd ask on here before I break something.



That recessed part is what is catching.

What do I do?

i know you already know that it is in upside down, but if you still have trouble putting it in the right way, you can put the caliper with the rubber ring inside it in the freezer for a few hours and it will be easier to get the piston in! little tip :)
1978 CB750F
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Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #96 on: August 20, 2013, 07:03:19 PM »
What kind of tank is on the bike in your profile pic?
I'm not sure, I can't find any info on that bike. All I have is that picture.

Offline apetersonboy

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #97 on: August 20, 2013, 07:04:47 PM »
Do any of you guys think boiling my battery box rubbers for a minute or two be a good idea to help with getting them back in their respective places? I've tried multiple times with a variety of tools and can't get the buggers back in. Any input would be appreciated.

Offline blparker

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #98 on: August 21, 2013, 07:08:45 AM »
What kind of tank is on the bike in your profile pic?
I'm not sure, I can't find any info on that bike. All I have is that picture.
I found it, its for early 70's 750s

Offline SOHC4 Cafe Racer Fan

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Re: 1978 CB 750F MAH FREAKIN BIKE (lack of better words to describe it)
« Reply #99 on: August 21, 2013, 07:55:55 AM »
I would try heat of some kind - like hot water. Boiling may be overkill.
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