« previous next »
Pages: [1]   Go Down

Author Topic: WAAAH!  (Read 1518 times)

0 Members and 3 Guests are viewing this topic.

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,864
  • Saver of unloved motorcycles.
WAAAH!
« on: July 09, 2012, 08:23:14 PM »
I was putting the forks back on the K0 today, I removed the loose bolts and washers from the top tree and it broke in my hand. Went together easy and yes I have always had the D washers. Learned that lesson years ago on a K4.
 There was over an 1/8" of black powder coat in the break so it must have been cracked before.
 Not to worry, I have another polished one with my gauges already on it but that was dissapointing.
Logged
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline scottly

  • Global Moderator
  • Really Old Timer ...
  • *****
  • Posts: 16,272
  • Humboldt, AZ
Re: WAAAH!
« Reply #1 on: July 09, 2012, 08:37:57 PM »
Wow, that sucks! :( It's not the first time I've heard of an early triple breaking, even with the D washers. My K1 never had them, and never broke. I wonder, was there a service bulletin on this? Where the washers added to correct the problem, just like the mods to fix the broken chains?
Logged
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline bjatwood

  • I never claimed to be an
  • Expert
  • ****
  • Posts: 976
  • 1973 CB750-K3
    • Minbikers Proboards
Re: WAAAH!
« Reply #2 on: July 20, 2012, 08:19:33 AM »
Did you get this fixed Don?
Logged
Brian
#24193

I believe that the Finest things are the most thoughtfully made, not the most expensive!
http://minibikers.proboards.com/

Offline phil71

  • Master
  • *****
  • Posts: 1,813
Re: WAAAH!
« Reply #3 on: July 20, 2012, 08:23:55 AM »
Man, you're lucky.. That thing was probably broken a long time ago.. That'll make for one terrifying ride
Logged

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,864
  • Saver of unloved motorcycles.
Re: WAAAH!
« Reply #4 on: July 20, 2012, 08:43:38 AM »
I don't think it should be fixed. I have another one that isn't powder coated I can use. I guess this is why they sell so well on Ebay. I lost track of which one came on the bike but I think it was the one that broke. So yes, I was riding fast and testing the brakes before I took it apart for paint. Braking is probably when it gets the most load and I was practicing emergency stops. Just how I roll lol.
Logged
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline tlbranth

  • Master
  • *****
  • Posts: 1,659
Re: WAAAH!
« Reply #5 on: July 20, 2012, 09:34:31 AM »
I think the stock spacer is too thin. When I restored my K0 and picked up a new (old) top tree, I fiddled with spacers until I had enough to juuuuuust grab the fork as everything contacted. If you'll notice3, the original spacer is a washer with the side ground off. I stacked home-made spacers 'til I got everything just snug. I saved the old tree just in case I ever find someone who can repair it as a spare.
Logged
Don't own a Vanagon
Don't work at Boeing
Life is good

1970 CB750 K0
1975 GL1000
1999 GL1500
2002 VT750-CDA ACE - Momma's bike
Terry

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,864
  • Saver of unloved motorcycles.
Re: WAAAH!
« Reply #6 on: July 20, 2012, 08:29:03 PM »
My 750 super sport came with no D washers, I was pleased it wasn't broken, the seller just slid it together good enough for me to roll it into my trailer. Fortunately I knew about them already. The washers weren't in the parts box though.

I have a belt sander, maybe I need some custom spacers too.
Logged
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline david 750f

  • Expert
  • ****
  • Posts: 827
  • 1976 CB750F
Re: WAAAH!
« Reply #7 on: July 20, 2012, 09:11:47 PM »
Don,
the 75/76 F's came with washers till serial number 2009780. After that they use a different top triple with NO washers.
Another way to tell is the earlier top triple pinch bolts are 8mm in diameter. The later ones are 7mm.
Cheers,
David
Logged
1976 CB 750F

Offline Imago

  • 1978 CB750F
  • Hot Shot
  • ***
  • Posts: 535
Re: WAAAH!
« Reply #8 on: July 20, 2012, 09:26:21 PM »
Quote from: david 750F on July 20, 2012, 09:11:47 PM
Don,
the 75/76 F's came with washers till serial number 2009780. After that they use a different top triple with NO washers.
Another way to tell is the earlier top triple pinch bolts are 8mm in diameter. The later ones are 7mm.
Cheers,
David
Good to know! I've been worried about my '78 CB750F having no D washers until I read this post.

By the way, this post might have title ever!
Logged

bollingball

  • Guest
Re: WAAAH!
« Reply #9 on: July 20, 2012, 11:39:50 PM »
Logged
Pages: [1]   Go Up
« previous next »