Author Topic: Motorhanger bolts  (Read 1222 times)

0 Members and 1 Guest are viewing this topic.

Offline beemerbum

  • Expert
  • ****
  • Posts: 1,060
Motorhanger bolts
« on: June 03, 2016, 07:30:42 PM »
Does any one know the lenghts of the four long bolts that hold in the motor? I have a handful of long bolts and no bike or frame handy to compare them to. Thanks in advance. BTW, CB 750., K1 I believe.

Offline BomberMann650

  • Holy Cow! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 6,413
  • Dr. Bovinestein iBa#80333
Re: Motorhanger bolts
« Reply #1 on: June 03, 2016, 07:56:54 PM »
Does any one know the lenghts of the four long bolts that hold in the motor? I have a handful of long bolts and no bike or frame handy to compare them to. Thanks in advance. BTW, CB 750., K1 I believe.

Hardware sizes are usually mentioned in the parts list.  Find the fiche and you'll get the right answers ;)

Online PeWe

  • Really Old Timer ...
  • *******
  • Posts: 15,550
  • Bike almost back to the 70's 2015
Re: Motorhanger bolts
« Reply #2 on: June 03, 2016, 11:14:47 PM »
Measure your old bolts? 3 long bolts....

I ordered a set of 3 new complete bolts with washers and nuts. So easy to mount the engine this time, the original ones have banana shape that made the assembly to a real pain.

The threads are fine so nuts a must since I do not have fine threaded nuts in my boxes.
http://www.ebay.de/itm/291318970546?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

This indicate the the bolts are same for all Kx models
http://www.ebay.de/itm/Honda-CB750-CB-750-Four-sandcast-1969-1978-engine-bolt-set-new-/290509702512?hash=item43a3ba4570

EDIT: Just for sure...lenghts in mm described in the link. Not fine threads will most likely not work that well
1x Schraube (C) verzinkt M10x1,25x280 SW17 inkl. Sprengring, Scheibe und Mutter

1x Schraube (A) verzinkt M10x1,25x315 SW17 inkl. Sprengring, Scheibe und Mutter

1 x Gewindestange verzinkt M12x1,25x365 inkl. 2 Scheiben und Muttern

Honda Vergleichs-Teilenummern: 90156-300-000 + 90152-300-010 + 90155-300-000.
« Last Edit: June 04, 2016, 01:32:03 AM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline beemerbum

  • Expert
  • ****
  • Posts: 1,060
Re: Motorhanger bolts
« Reply #3 on: June 04, 2016, 07:52:15 AM »
Danke