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View Full Version : My 1974 HONDA CB750 Build...



cityslicker
09-07-2011, 11:19 AM
http://i48.photobucket.com/albums/f205/groberto/2011-08-01211525.jpg

http://i48.photobucket.com/albums/f205/groberto/2011-08-01182549.jpg


I picked her up for 240 bucks, with a clean Title..
the engine wouldn't budge and I bought her anyway../

I'm actually a lot farther then in these picks.. I got the engine moving.. tore the nightmare wiring harness off, removed everything but the rear fender and engine.. I'm going to start cleaning her up.

Soda blast the engine.
Aircraft strip the frame.
sand the tank.

I really like working on this bike.. it's alot of fun.. they are so easy,,, besides the two screws I raped and can't get out... but thats a design flaw,,who the **** uses screws instead of bolts on an engine.. retards..

cityslicker
09-07-2011, 11:26 AM
http://pictures.topspeed.com/IMG/crop/200912/honda-cb750-cafe-rac-3_460x0w.jpg
http://2.bp.blogspot.com/-G-N_zXJTtaQ/TcsfqKmguKI/AAAAAAAAAFQ/qEu2G8LVIZs/s1600/Custom+motorcycles+by+Bratstyle+Honda+CB750.jpg
http://bikerscafeblog.com/wp-content/uploads/2011/01/Military_Gold_Honda_CB750_04-540x360.jpg
going for something in the direction of these bikes..

Bare minimum, no frills, bobber/ cafe racer esque.. at this point leaning more toward a cafe style, since then I would have the rear suspension. and thats clutch around here.

joe_and_jeep
09-07-2011, 01:16 PM
http://img.photobucket.com/albums/v384/joe_and_jeep/shtj5/100_0171.jpg

I have a 1975 CB750SS. Runs awesome, great bikes.

cityslicker
09-08-2011, 05:16 PM
Nice bobber man... you like the hard tail?
you should paint those pipes black

JeepSteeler
09-09-2011, 07:08 AM
Cool project... that green bike in your second post is fricking sweet. Love the basic minmalism type look.

cityslicker
09-09-2011, 11:08 AM
Yea that oneis amazingly nice.. But I can't tell where his Oil tank and battery are.. or fuse box for that matter..

JeepSteeler
09-09-2011, 11:56 AM
Me either - doesn't look like they are even on there in that pic unless it runs on a few AAA Duracells. Maybe that pic was before it was finished?

Guy I get my tattoos from has a sick custom Triumph with a hand built frame, some cafe racer elements but a very minimalist design (kinda like a "rat rod" motorcycle)....i'll see if i can find a pic.

Wbertoty
09-09-2011, 02:10 PM
The last two bikes are DOHC CB750's, they do not use an oil tank. As for the battery, the second one looks like it is set up for track use, as such they would leave the battery out so as to save weight. Here are some pics of mine.

My 1980 CB750 (Working on it in front of my buddy's house)
http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc7/314497_1742839349075_1781486411_1136490_2040636212 _n.jpg

My 1982 CB900F Super Sport
http://a4.sphotos.ak.fbcdn.net/hphotos-ak-snc6/261250_1643335061530_1781486411_1032892_5451981_n. jpg

joe_and_jeep
09-09-2011, 07:20 PM
Nice bobber man... you like the hard tail?
you should paint those pipes black

Its a fun bike, I used to ride it more than my Harley. I mignt look for another one next year.

book85
09-10-2011, 10:17 AM
Well since you guys are showing some chopped bikes. Heres a pic of one of my bikes I built. Its a triumph. Sorry its not a cb.
http://i1004.photobucket.com/albums/af170/85-db-85/DSCF0173.jpg
http://i1004.photobucket.com/albums/af170/85-db-85/dirtytriumph.jpg

cityslicker
09-13-2011, 12:54 PM
I like where this is Going.... http://i48.photobucket.com/albums/f205/groberto/2011-09-10211458.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-09-10211443.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-09-10211429.jpg

this is where I am now,,, all ripped dahn.. Gotta start strippin/sandin the frame and open the case

I knew those were DOHC, but didn't know they didn't use a tank, that's wild.. why because the second cam makes the internal capacity large enough?

I like every one of these bikes posted, yinz know your shit.. any of you have a carb synch I can borrow? not yet obviously but soon enough..

KUGS
09-15-2011, 11:49 PM
My 1982 CB900F Super Sport
http://a4.sphotos.ak.fbcdn.net/hphotos-ak-snc6/261250_1643335061530_1781486411_1032892_5451981_n. jpg

Nice bike!

cityslicker
09-21-2011, 04:15 PM
http://i48.photobucket.com/albums/f205/groberto/2011-09-20204146.jpg

My frame all gussied up. First coat done.

steveg0690
09-21-2011, 05:27 PM
Looking good, here's the bike that I built last year.


http://i304.photobucket.com/albums/nn179/steveg0690/S5000044.jpg

cityslicker
09-22-2011, 11:39 AM
very nice... thats a DOHC, I thought they didn't need oil tanks? the way you have the frame set up is wild man.. I love the pipes.. I bet its loud though..
You any good with the electrical? I could use help when I get to that part..

I'm thinking of using the Rectifier/Regulator from a dohc replacing the two separate and large ones that are on the sohc bikes.
I don't see turn signals, I was wondering if they are required by law in PA. I have read the requirements, but the verbiage is so confusing I can't really tell if it'll pass inspection without them or not.

steveg0690
09-22-2011, 02:04 PM
Thanks, It's not an oil tank. I made it to look like an oil tank, all of my electrical and battery are in the tank. Not any easy task to fit. Mine is a 1979 yamaha so it has solid state ignition to hide points would've been easier to wire. I had to make my own wiring harness for the bike. It takes time, find a diagram to get you started, then start eliminating everything that you don't need.

No turn signals, I didn't want them. It's a risk that I am taking, and it depends on the cop. When I got pulled over on it (test drive) I was ticketed for no plates, registration, or insurance. Didn't say anything about turn signals.

The fab work is the easy part. It's all of the little details that take time.

Here is the build thread that I did for mine. http://www.pgh-offroad.com/forum/showthread.php?14292-Something-new...A-Chopper!&highlight=chopper

JeepSteeler
09-23-2011, 07:34 AM
I remember you posting about that run-in with the cops Steve - how did that ever work out anyway? Did you get out of it?

steveg0690
09-23-2011, 11:33 AM
I remember you posting about that run-in with the cops Steve - how did that ever work out anyway? Did you get out of it?

I was able to plead my case and was only found guilty of "not displaying registration" The other charges were dropped. That took a huge weight off of my shoulders. The judge was very understanding. The officer was upset with the judges decision, what a prick.

cityslicker
10-04-2011, 02:56 PM
http://i48.photobucket.com/albums/f205/groberto/2011-10-03222645.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-10-01215748.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-10-01215811.jpg

Got the Tank painted,
The rear drum cover, the coilovers.
She's gonna be purdy..

carthief007
10-11-2011, 06:07 PM
Nice bike!

dang i got one of those....missing all the plastic,motors gonna be a go cart(another project lol)

lucky2
10-22-2011, 08:48 AM
The Honda CB750 used phillip screws because at that time they were better than the regular flat blade slotted screws.

To work on those engines you must have a hand held impact driver that you tap with a hammer.
You also have to use the correct size phillips bit. For instance: #1.#2,or #3.
The valve cover screws are #3 phillips screws.

If you use a bit that is too small, it will strip the screw.

The Honda CB750 is a SOHC engine.
It has a dry sump oil system and has a oil storage tank.

BTW....If you order a wiring harness you can get the 1975 wiring harness online new, and everything will plug in. Try www.partsNmore

cityslicker
11-02-2011, 10:34 PM
thanks for the info, I got the manual, and the screws are #3s. http://i48.photobucket.com/albums/f205/groberto/2011-10-04203311.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-10-12181852.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-10-04172902.jpg
http://i48.photobucket.com/albums/f205/groberto/2011-10-05221619.jpg
some flicks of some progress

steveg0690
11-02-2011, 10:53 PM
Looking good man. Keep the pictures coming.

cityslicker
03-28-2012, 10:39 AM
http://i48.photobucket.com/albums/f205/groberto/2012-03-27211848.jpg

Engine went in last night.. Now she's starting to look like a bike again.

Azzy
03-28-2012, 10:58 AM
Rebuilt a CB650C a few years ago, great bkes. On those screws, the biggest problem is using the wrong driver. They are not phillips or posidrive, they are Japanese Industrial Standard. Just off enough to make them easy to strip.

Thats looking pretty nice there!

cityslicker
03-28-2012, 11:24 AM
http://i48.photobucket.com/albums/f205/groberto/2012-03-28073843.jpg

muddeprived
03-28-2012, 12:51 PM
The Honda CB750 used phillip screws because at that time they were better than the regular flat blade slotted screws.

To work on those engines you must have a hand held impact driver that you tap with a hammer.
You also have to use the correct size phillips bit. For instance: #1.#2,or #3.
The valve cover screws are #3 phillips screws.

If you use a bit that is too small, it will strip the screw.

The Honda CB750 is a SOHC engine.
It has a dry sump oil system and has a oil storage tank.

BTW....If you order a wiring harness you can get the 1975 wiring harness online new, and everything will plug in. Try www.partsNmore

Umm....hi? How'd you stumble across this thread?