Topic: 1973 CB750 sitting for a long, long time

[john dover]

My 1973 Honda CB750E was stored improperly many years ago (last safety inspection is dated 1994).  Myskill levels are low and I have a Clymer book that doesn't seem to be what I need.  Can someone recommend a more basic and detailed manual?  This bike is original with about 12,500 miles and the original key with matching numbers for the ignition and seat lock.  The engine number is CB750E-2063387 and the frame number is CB750-2055551 with manufacture date of 7/72.  The left side of the air cleaner box has "HM CB750F.  The title numbers match the above and the machine is shown as a 1973.  Would it be a 1973?  The throttle cables are frozen and the forks have leaked down.  I have bid on an owner's manual from e-bay but haven't received it yet.

I don't know if I have a diamond in the rough or a pain in the wallet and brain that exceeds my ability to restore this great machine.  My friend rode this bike when mine at that time was a BMW R60/5, and an early Goldwing.  They were great but everyone eventually dropped out.  I regret selling the BMW and was hit by a car on the Goldwing, and pestered by friend until he sold me this CB750.  By then he had put it in his outbuilding for a long time and I got it around 1992, I think.
Any information is greatly appreciated.
John Dover

[Hush]

With the help of fellow forum members and a decent owners workshop manual this should not be beyond you John.
Don't be afraid to ask the dumb questions, we try not to be too judgmental on here and only roll on the floor laughing when you can't see us.

[Alan F.]

Yes, you can do it!  Have a look up in the right corner of your screen, these are not complex machines in a modern sense.  The engineering is sound and logical (usually) and parts are available (mostly) and there's always tons of know-how to be had for free here from the membership.  first read the FAQ, then just pick a spot in the SOHC/4 bikes forum and read, read, read, search search, search, and then ask every question that remains.  Post your progress in the Project Shop forum and take pictures, notes and measurements of everything. 

My first suggestion is to spray evert nut and bolt on the bike with penetrating oil asap, then every day until you've emptied a can or two.  PB Blaster is the weapon of choice, but even the K/wal-mart brand will help free things up, don't try to crack loose any nuts or bolts without spraying them down, they may be stuck and snap.

If the engine turns, you're in luck.  If not spray some penetrating oil in through the sparkplug holes then put the plugh back in (they don't have to be tight) and go read threads on freeing a stuck motor.

The plugs require a narrow thin-walled socket to fit correctly, the stock tool is still available from your honda dealer, search for more info.

For a great source of part numbers, screw and bolt lengths, and a whole lot of other info... become familliar with http://www.servicehonda.com/test/index.htm

My 750K3 had a build date of 10/72 so I've got an idea what you're into, enjoy! 

[Johnie]

Hush and Alan hit it on the head...this forum and the guys here have an unbelievable amount of info on bringing these classics back to life.  We live to see these bikes saved from the junk pile.  Give the foot crank a push and let us know if she turns over and is free.  Next try to figure out how to put a few pics on the board here.  The pictures are very helpful to the guys when you are asking questions.  Plus, it will give us an idea of what you are working with.  Good luck with your project and keep us informed.

[mystic_1]

Manuals are here:

http://forums.sohc4.net/index.php?topic=17788.0


mystic_1

[Alan F.]

Here's a little tutorial I just whipped up on how to post a picture in these forums.  There are other ways to insert a picture amid your post, but I don't usually do that personally.