Author Topic: recondition 1974 cb750 airbox?  (Read 1479 times)

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Offline seanplarkin

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recondition 1974 cb750 airbox?
« on: May 15, 2010, 05:22:38 PM »
does anyone know if you can buy new pelums for the air box, my box is sound, but the connections from the intakes on the box dont seem to be air tight is this and issue.  please help...

Offline fmctm1sw

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Re: recondition 1974 cb750 airbox?
« Reply #1 on: May 15, 2010, 05:47:05 PM »
Look for the post that talks about reconditioning rubber:  wintergreen oil and xylene or something...
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Dude is that a tire ? or an O-ring..??

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This is not a pod thread
This is not a #$%* on my vacuum gauges thread
This is a help or GTFO thread.

1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
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Offline Gordon

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Offline seanplarkin

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Re: recondition 1974 cb750 airbox?
« Reply #3 on: May 16, 2010, 08:59:42 AM »
That's exactly what i need!!  Any chance there is a us website that has those?

Offline wannabridin

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    • 1976 CB750K, under construction:
Re: recondition 1974 cb750 airbox?
« Reply #4 on: May 16, 2010, 09:03:31 AM »
only 5.45???  wow!  i'm going the xylol route, since it's cheaper, but dang, that's a really good deal!!  especially if yours are so hard they're frozen into the box and you have to break them out
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

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Offline Gordon

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Re: recondition 1974 cb750 airbox?
« Reply #5 on: May 16, 2010, 09:26:23 AM »
That's exactly what i need!!  Any chance there is a us website that has those?

Try the dealer if you don't want to order from David Silver, but you'll probably get better, faster service from DSS at about the same price, and shipping will only be a few bucks. 

Offline seanplarkin

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Re: recondition 1974 cb750 airbox?
« Reply #6 on: May 21, 2010, 09:22:44 AM »
How long does it take for something to get shipped from england?  Also does anyone know where and how to adjust the chain lube nut on the front sproket mine leaks and im not sure if im missing something...

srook

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Re: recondition 1974 cb750 airbox?
« Reply #7 on: May 21, 2010, 09:30:15 AM »
Try Western Hills Honda.  Thier in Ohio.

www.westernhillshondayamaha.com

Scott

Offline seanplarkin

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Re: recondition 1974 cb750 airbox?
« Reply #8 on: May 21, 2010, 10:27:39 AM »
does anyone have a parts number list?

Offline GammaFlat

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Re: recondition 1974 cb750 airbox?
« Reply #9 on: May 21, 2010, 01:18:51 PM »
I did the xylol/wintergreen trick and I couldn't be more impressed.  I did both the airhorns and manifolds.  I'm told by someone else on this forum (a name you all know) that the xylol/wintergreen treatment makes the parts softer than the brand new ones he had on hand. 

When I started with this part, it was hard like porcelain.  I thought attempting to re-shape it in any way would break it.  The picture is after using the magic juice.  With 16oz of wintergreen and a pint of xylol, I have done at least 6 sets of rubber parts - with equally wonderful success.  I'm glad I didn't throw them away...  I also did some sidecover grommets. 

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Offline Gordon

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Re: recondition 1974 cb750 airbox?
« Reply #10 on: May 21, 2010, 08:48:29 PM »
How long does it take for something to get shipped from england? 

I don't know about all of England, but from DSS it's usually about a week. 

Offline seanplarkin

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Re: recondition 1974 cb750 airbox?
« Reply #11 on: May 22, 2010, 06:41:32 AM »
where can i get xylol / wintergreen, I'm going to google it as well but i just thought i would ask...

Offline GammaFlat

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Re: recondition 1974 cb750 airbox?
« Reply #12 on: May 22, 2010, 07:09:28 AM »
where can i get xylol / wintergreen, I'm going to google it as well but i just thought i would ask...

Wintergreen:
I bought 4 of these.  It was somewhere around $4 shipping.. so 20 bucks total. 
http://www.amazon.com/gp/product/B000NWGL6W/ref=ord_cart_shr?ie=UTF8&m=A3GE99BTF4Y77N

Xylol:
You don't need a whole gallon - I bought a pint at Menards but here it is at Home Depot:
http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?jspStoreDir=hdus&catalogId=10053&productId=100406366&navFlow=3&keyword=xylene&langId=-1&searchRedirect=xylene&storeId=10051&endecaDataBean=com.homedepot.sa.el.wc.integration.endeca.EndecaDataBean%4049bf80ae&ddkey=Search

I'd recommend getting a paint can (actually someone on the forum here recommended it) to seal the vapors in.  I used a coffee can and it didn't work real well (the lid swelled and didn't seal).  Use a respirator... don't do it inside your house.. avoid putting your hands in the stuff.  Enjoy - when you're done, you'll kinda be dumbfounded that it worked so well. 
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Suzuki GN400 - Ignition fixed!
03 KLR650 - Doesn't do anything very well but.. well.. does everything.