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Author Topic: Rachels 78 CB400...Murrys carbs, For the WIN.  (Read 18122 times)

Offline advCo

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Re: 78 CB400A for Rachel
« Reply #30 on: May 24, 2017, 09:25:24 »
Just catching up. Along for the ride


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"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

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Offline Hurco550

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Re: 78 CB400A for Rachel
« Reply #31 on: May 24, 2017, 11:11:15 »
yerp, me too. nice project mayne
"If you just picked up a drug habbit instead of a kawasaki triple at least you could get high while you waste money"
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Offline trek97

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Re: 78 CB400A for Rachel
« Reply #32 on: May 24, 2017, 21:04:04 »
Thanks guys!

The first wave has arrived.  Stragglers will be trickling in over the next week.



Always delighted to have the most accurate info.

Won (only 1 bid, $12.00 + 15 shipping) 1978 w 78 1/2 addendum of the Official Honda shop manual in paper.
Turns out this CB400A Hawk is a half year machine.  Made the first part of 78,  then became the CB400A Hawk 2 for 1978 1/2.
In 79 it evolved into the CM400A.  They quit making the A's 3 years later in 81.




 
« Last Edit: Mar 22, 2018, 07:59:36 by trek97 »

Offline trek97

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Re: 78 CB400A for Rachel
« Reply #33 on: May 26, 2017, 07:32:07 »
Got a decent deal on a pair of dropped and broken ebay carbs.  Paid off.  Both bowls and overflows are better than my rotted ones.



A lot of penetrant and a little heat gun makes easy work of stuck brass, gaskets and orings.

« Last Edit: Mar 22, 2018, 08:00:44 by trek97 »

Offline cxman

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Re: 78 CB400A for Rachel
« Reply #34 on: May 26, 2017, 07:45:51 »
be careful with the carb isolators they are unobtainium
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline trek97

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Re: 78 CB400A for Rachel
« Reply #35 on: May 26, 2017, 09:55:30 »
be careful with the carb isolators they are unobtainium

I soaked them in wintergreen but only overnight.  I think it helped them...or wishful imagination.  They are hard.  But not rock hard.  There is still a little bit of pliability left in them.

Offline Sonreir

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Re: 78 CB400A for Rachel
« Reply #36 on: May 26, 2017, 12:26:20 »
I soaked them in wintergreen but only overnight.  I think it helped them...or wishful imagination.  They are hard.  But not rock hard.  There is still a little bit of pliability left in them.

Add Xylene to the mix. The wintergreen oil has trouble on its own and need a carrier. I use a mix of 75% Xylene and 25% wintergreen oil.
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Offline trek97

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Re: 78 CB400A for Rachel
« Reply #37 on: May 26, 2017, 13:49:05 »
Add Xylene to the mix. The wintergreen oil has trouble on its own and need a carrier. I use a mix of 75% Xylene and 25% wintergreen oil.

Does xylene come from the hardware store?

Offline Sonreir

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Re: 78 CB400A for Rachel
« Reply #38 on: May 26, 2017, 13:57:18 »
Does xylene come from the hardware store?

Yup. Most should carry it. I think it's a variant of paint thinner?
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Offline irk miller

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Re: 78 CB400A for Rachel
« Reply #39 on: May 26, 2017, 14:05:03 »
Isopropyl alcohol works too, but probably ends up costing more per volume.