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Author Topic: 71' CB500 monoshock with no name...O2 sensor success!  (Read 64079 times)

Offline MotorbikeBruno

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Re: 71' CB500 monoshock with no name.
« Reply #50 on: Dec 22, 2012, 16:49:37 »
Haha, yessir! Got one done, and took a break between this one and the second gusset.  I'm getting more stoked on this build as the hours go by  8)

Offline Bert Jan

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Re: 71' CB500 monoshock with no name.
« Reply #51 on: Dec 22, 2012, 19:49:05 »


Bert I think this is what you were referring to with the shock mounts correct?




right on!

Offline teazer

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Re: 71' CB500 monoshock with no name.
« Reply #52 on: Dec 22, 2012, 21:19:09 »
That looks much better

Offline Bert Jan

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Re: 71' CB500 monoshock with no name.
« Reply #53 on: Dec 23, 2012, 08:23:14 »
Have you checked all the clearances when the shock is fully "in"?? Might be a tight space between wheel and hoop...

Offline MotorbikeBruno

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Re: 71' CB500 monoshock with no name.
« Reply #54 on: Dec 23, 2012, 12:48:06 »
Getting there Teazer! haha. 

Bert,  the wheel is slid as far forward as it goes in the slots.  When I put the chain back on, it will not be as far forward as that, it will be 15-32mm back from where it is now.  That should give me the needed clearance I hope!!  Also, this shock will HOPEFULLY work, as it's made for a bike that was quite a bit larger and I only weigh a solid 155lbs (70 kg!)  I don't think I'll be able to bottom it out if you know what I mean.

I was getting excited and didn't mirror one of the top shock mounts, so when I went to countersink the mount to make the correct distance, I did it on the wrong side  :(   >:(

Fixing that and hope to have it welded in to do a ton more measurements! haha.

Offline teazer

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Re: 71' CB500 monoshock with no name.
« Reply #55 on: Dec 23, 2012, 13:14:51 »
Bruno

I weighed about 155 when I started modifying bikes.  Now let's say that shock would work just fine for me.  If you take long enough, you will grow into it. :-)

Offline MotorbikeBruno

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Re: 71' CB500 monoshock with no name.
« Reply #56 on: Dec 23, 2012, 15:30:48 »
Haha, yeah, my dad had a smaller waist when he was my age...not so much now.... I'm only 27 though  ;)

Maybe if I turn hard enough/give it enough pressure it will work to it's correct potential?  ::)

I'll just add a ton of bracing in the back to make it heavier! Speaking of......here's how she looks as of now, haven't checked geometry yet, I'll get some numbers again Teazer after I throw the bottom end of the engine back in, and get it off the center stand.




And I started with an outside Front brace.  If I remember correctly bringing it to the far towards the front of the swinger is better so I did just that.  The other side will be put on next and so far, she's level and straight!



Offline MotorbikeBruno

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Re: 71' CB500 monoshock with no name.
« Reply #57 on: Dec 28, 2012, 13:02:09 »
As I've been working on the engine right now, I found these great videos on Youtube of a guy going through a CB550 engine clean up etc.    Here's the link if anyone is interested.



I am at the point where I am going to start cleaning up the head, I bought a valve compressor tool a little while back and this will be my first time actually doing anything with the valves.  For now, I am most likely only going to swap out the old oil seals for new ones, unless I NEED to lap the valves.  I've heard and read mixed reviews, and it seems that if they aren't pitted, no reason to lap them. Does that sound right?

Also, I'll get a pic up in a bit, but the PO nicked the base gasket area a little here and there, so I was wondering if there was something specific to use on that to make sure there aren't any leaks.  I've got yamabond etc, and as far as I knew, the base gasket area has no compression, so it would be OK to use some sort of sealer there. Am I correct in this assumption?  Thanks guys! Hope you had a great Christmas/holiday. 

Offline MotorbikeBruno

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Re: 71' CB500 monoshock with no name.
« Reply #58 on: Dec 28, 2012, 17:46:17 »
Here's those pictures I promised.  LOTS of cleaning to do on these damn parts. He pinched the O-rings when re-installing, thus the leaking and other problems.  I can only assume it leaked like a sieve, so he decided to goop up the ENTIRE engine.  I'm a tad worried this stuff is everywhere in the engine at this point.  I'll find out more when I get into the oil pump and drop the oil pan and get in there.



ahhhhh clean again!


Prettied up again. After a LOT of cleaning.



Pistons cleaned up and re-installed.


Offline neevo

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71' CB500 monoshock with no name.
« Reply #59 on: Dec 28, 2012, 19:32:44 »
Prettied up again. After a LOT of cleaning.



Jesus! Nice work. What was the process? Or has it been painted?


See the condensed version of my full build on my blog!