Author Topic: RE: CB750 Most Common Frame Bolts  (Read 2720 times)

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Offline chewbacca5000

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RE: CB750 Most Common Frame Bolts
« on: April 28, 2014, 05:42:46 AM »
So I am looking to make some serious progress on a 1975 CB750 with around 9,000 miles on the clock.  This is really a cosmetic restoration, and refurbishing of wear parts.

I make the bad mistake of not labeling all the nuts and bolts.  Since I do alot of this I am looking at getting stainless bolts for most common type items.

Many of the parts that bolt on seem to use only 2 or 3 types of bolts like the battery box, electrics, turn signals, forks all work with a 10mm socket.  Other common ones are 12mm socket, and 14mm for rear shock bolts.

Ideally I would like to buy a bunch of stainless steel equivalent just to have them on hand.  If anyone has a list that would be great if not I will do my best to document things as I go.

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Offline evanphi

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Re: RE: CB750 Most Common Frame Bolts
« Reply #1 on: April 28, 2014, 05:54:21 AM »
Hey sorry to tell you... but your bike 'asploded.

Good luck getting all the bolts! Stainless is wonderful!
--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
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Offline calj737

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Re: RE: CB750 Most Common Frame Bolts
« Reply #2 on: April 28, 2014, 05:57:04 AM »
See if this helps get you started:

http://www.cmsnl.com/honda-cb750-four-k5-usa_model483/partslist/F++28.html#results

I may have your model wrong, and you may need other diagrams to complete your inventory. But it's the best method for accurate accounting of bolt type, length and  pitch.

If you are unaware, most M10 bolts on these bikes were 1.25 pitch, and most common inventory at stores is 1.5 pitch. Do NOT mix them (obviously). Boltdepot.com is a good resource online for ordering exactly what you need, shipping is fast and efficient.

I just put together a complete order for every motor and side cover bolt for my 500. It took about 1.5 hours to get it right, place order and catalog. Worth it in the end. (To me anyway)
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

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Offline greenjeans

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Re: RE: CB750 Most Common Frame Bolts
« Reply #3 on: April 28, 2014, 05:57:38 AM »
You might want to contact MarkB - Pretty sure he has spreadsheets of all the bolts with sizes, thread pitch, etc. etc.
I know I've seen and downloaded them - just can't find where I saved them.  He has a stellar restoration of a sandcast on the project page.
Yep, I'm the kid that figured out how to put things back together...eventually.

Offline markb

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Re: RE: CB750 Most Common Frame Bolts
« Reply #4 on: April 28, 2014, 06:34:29 AM »
Here's a link to the thread with the spreadsheets.  These were meant for K0's but most of what you're looking for is the same.  I hope it helps.
http://forums.sohc4.net/index.php?topic=103068.msg1468676#msg1468676
1969 CB750 sandcast #97 restored - Sold Restoration thread link
1969 CB750 sandcaxt #576 - Sold
1969 CB750 sandcast #1553 - Sold
1969 CB750 sandcast #1990 - Sold
1969 CB750 sandcast #5383 restored - Sold Restoration thread link
1970 CB750 K0 restored - Sold
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Offline flybox1

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Re: RE: CB750 Most Common Frame Bolts
« Reply #5 on: April 28, 2014, 07:40:06 AM »
Stainlesscycle has 750 kits of polished or unpolished allen head screws for all covers, and everything comes pre-packaged and labeled. 
I too went through boltdepot.com and got all the engine and frame bolts. 
CMSNL will be your biggest help.  Go through each Fiche page for bolt specs.  Bolt depots bags have the BDpart # on the outside as well as the specs.
If you go this way BE SURE to make a list which connects the CMSNL FICHE PAGE Part # (& quantity) to the BOLT DEPOT PART #
 
ie.  CRANKCASE page #32 (6) = BD#1234
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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