Author Topic: CB750 Barn find project - First Timer  (Read 53204 times)

Offline JamesH

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Re: CB750 Barn find project - Where do i even start!?
« Reply #45 on: July 28, 2016, 01:17:45 PM »
Order some MEK (Methyl Ether Ketone) which is an industrial solvent. It will eat the sealer (and any paint so be careful if you want to preserve the paint).

Offline Underdog1

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Re: CB750 Barn find project - Where do i even start!?
« Reply #46 on: July 28, 2016, 01:48:08 PM »
Order some MEK (Methyl Ether Ketone) which is an industrial solvent. It will eat the sealer (and any paint so be careful if you want to preserve the paint).

Cool,have heard that mentioned alongside acetone as good for cleaning out tanks.

Is there an established method for using MEK? I.e. do you ust swill a few litres about or dilute it and brim the tank to leave overnight etc?

Offline JamesH

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Re: CB750 Barn find project - Where do i even start!?
« Reply #47 on: July 28, 2016, 02:39:57 PM »
I used it neat on a tank with a Kreeme liner. Left it in for a couple of hours, swilled every 30 mins and then drained through a coffee filter for re-use. You may want to de-grease the tank first so the MEK can get straight on to dissolving the liner without a grease barrier to deal with.

Offline Underdog1

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Re: CB750 Barn find project - Where do i even start!?
« Reply #48 on: July 28, 2016, 02:43:40 PM »
I used it neat on a tank with a Kreeme liner. Left it in for a couple of hours, swilled every 30 mins and then drained through a coffee filter for re-use. You may want to de-grease the tank first so the MEK can get straight on to dissolving the liner without a grease barrier to deal with.

Thanks for the info, although that does mean I'm going to need 18 litres of the bloody stuff!

Offline tom400f

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Re: CB750 Barn find project - Where do i even start!?
« Reply #49 on: July 28, 2016, 03:00:50 PM »
Notwithstanding all the above cleaning and prep, once you get past that you might consider finishing the inside like this: http://www.sohc.co.uk/index.php/topic,4758.0.html

You can also seal small holes with that stuff. The kit I used comes with a small amount of webbing that (I guess) you submerge in the paint in the affected area though this wasn't required in my case.

Not original, obviously, but as a rust solution it works very well.
1978 CB400F2 Yellow
1995 VFR750FS Red
1997 VFR750FV Lapis Blue
2013 Yamaha FZ8 Grey

Offline Underdog1

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Re: CB750 Barn find project - First Timer
« Reply #50 on: July 28, 2016, 08:48:47 PM »
Just stripped the back end down today and cleaned a few bits up, nothing really noteworthy.

Anyone know what this little nipple bit on the swingarm is for?



Also theres some little bracket down near the centre stand which doesn't seem to be doing anything, is this for a stand sensor or something?


Offline JamesH

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Re: CB750 Barn find project - First Timer
« Reply #51 on: July 28, 2016, 08:50:47 PM »
That's the grease nipple for the swingarm pivot assy. Bracket is unique to K6 and acts as a hose guide - can't remember which hose..

Offline Underdog1

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Re: CB750 Barn find project - First Timer
« Reply #52 on: July 28, 2016, 09:09:24 PM »
That's the grease nipple for the swingarm pivot assy. Bracket is unique to K6 and acts as a hose guide - can't remember which hose..

ah ideal, thinking about it its probably for the battery breather which i yanked out yesterday  8)

Offline JamesH

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Re: CB750 Barn find project - First Timer
« Reply #53 on: July 28, 2016, 09:10:14 PM »
You should invest in a copy of Hondaman's book...brilliant informative read...

Offline tom400f

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Re: CB750 Barn find project - First Timer
« Reply #54 on: July 28, 2016, 09:26:48 PM »
The hole in the stand is a guide for a tube of some sort. Rocker breather or perhaps the lead acid battery overflow
1978 CB400F2 Yellow
1995 VFR750FS Red
1997 VFR750FV Lapis Blue
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Offline Trigger

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Re: CB750 Barn find project - First Timer
« Reply #55 on: July 28, 2016, 09:44:07 PM »
It is for the battery overflow and is black rubber.

Offline Underdog1

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Re: CB750 Barn find project - First Timer
« Reply #56 on: July 28, 2016, 11:34:34 PM »
Thanks for the answers chaps.

Is it best to go oem for things like bushes and bearing or are there better alternatives?

Seen some recommendations for bronze swingers bushes and seen these on fleabay:

http://www.ebay.co.uk/itm/Swing-Arm-Bearing-swing-arm-bushes-bronze-bushes-2005180045061-/282021721757?hash=item41a9cdf69d:g:IYEAAOSwKfVXJBTE

literally a quarter of the price of the OEM ones from david silver, but I'm not one to waste money on crap even if it is cheap crap.

Offline Trigger

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Re: CB750 Barn find project - First Timer
« Reply #57 on: July 29, 2016, 02:51:51 AM »
Thanks for the answers chaps.

Is it best to go oem for things like bushes and bearing or are there better alternatives?

Seen some recommendations for bronze swingers bushes and seen these on fleabay:

http://www.ebay.co.uk/itm/Swing-Arm-Bearing-swing-arm-bushes-bronze-bushes-2005180045061-/282021721757?hash=item41a9cdf69d:g:IYEAAOSwKfVXJBTE

literally a quarter of the price of the OEM ones from david silver, but I'm not one to waste money on crap even if it is cheap crap.

Try Frank, have fitted more than 50 sets of these and many members use him >>> http://www.ebay.co.uk/itm/131207862914?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Online Bryanj

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Re: CB750 Barn find project - First Timer
« Reply #58 on: July 29, 2016, 06:39:19 AM »
The collar is frequently more worn than the bushes and costs even more

Offline Underdog1

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Re: CB750 Barn find project - First Timer
« Reply #59 on: July 29, 2016, 03:58:58 PM »
The collar is frequently more worn than the bushes and costs even more

The collar? mine look like top hats and are one piece



Managed to get a quick bit of time on the bike in today, just stripped down the front and rear brakes, attempted to remove the rear wheel bearing (didn't realise i needed a special tool) and just cleaned a few bits

 

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