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Started by edessex at 03-11-2010 11:07 AM. Topic has 11 replies.

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   03-11-2010, 11:07 AM
edessex is not online. Last active: 3/12/2010 6:20:26 PM edessex

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Joined on 09-11-2007
Nr. Stansted Airport, UK
Posts 7
Carb Jets for 2-into-1
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Hi all, I've been advised to change the carb jets in my '81 CX500 as its got a 2-into-1 Motad exhaust on it, so back pressure will be slightly off?

Its a (slow) project bike, and I have not had it running yet, just about to rebuild the carbs on it, and figure it would be best to make sure I have the right jets in it now, rather than having to dismantle it again later!

Does anyone know what size jets I need in it, and anywhere likely to stock them?

Cheers all!



1981 Honda CX500 (Rat)
(From sunny old England)
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   03-11-2010, 11:21 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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Joined on 02-12-2009
southern spain
Posts 4,999
Re: Carb Jets for 2-into-1
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hi ed,and a warm welcome to the forum from the south of spain.
rest ashurd,someone will be in to help you.
you must have been lurking for a while,thanks for setting up your profile without being asked

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   03-11-2010, 11:29 AM
edessex is not online. Last active: 3/12/2010 6:20:26 PM edessex

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Re: Carb Jets for 2-into-1
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Hi, yeah signed up some time ago, but cleared all the bookmarks on my computer and sort of lost track of the forum!

I'm guessing that as most users on here are from hotter areas than the UK, there carb jets will be different anyway, but any advice would be useful!

I think the exhaust on it is this one:
http://www.motad.co.uk/product.php?prod=CX500%2F+Z%2FA%2FB%2FCB+%28Custom%29+Complete+System

But it is not new, and if I can find a standard exhaust then I'll get it!

1981 Honda CX500 (Rat)
(From sunny old England)
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   03-11-2010, 11:32 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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southern spain
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Re: Carb Jets for 2-into-1
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 edessex wrote:
Hi, yeah signed up some time ago, but cleared all the bookmarks on my computer and sort of lost track of the forum!

I'm guessing that as most users on here are from hotter areas than the UK, there carb jets will be different anyway, but any advice would be useful!

I think the exhaust on it is this one:
http://www.motad.co.uk/product.php?prod=CX500%2F+Z%2FA%2FB%2FCB+%28Custom%29+Complete+System

But it is not new, and if I can find a standard exhaust then I'll get it!

ed just hang on a bit,blindstich is pretty clued up on this,does not matter which country you are in,just hold fire,you will get some help

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   03-11-2010, 11:39 AM
edessex is not online. Last active: 3/12/2010 6:20:26 PM edessex

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Joined on 09-11-2007
Nr. Stansted Airport, UK
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Re: Carb Jets for 2-into-1
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Cheers, I have no problems waiting... had the bike for a couple of years already!  Keeps getting put to the back of the list!  But I'm determined to get it on the road this summer! lol.

1981 Honda CX500 (Rat)
(From sunny old England)
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   03-11-2010, 12:24 PM
Eurovee. is not online. Last active: 7/22/2010 2:59:02 AM Eurovee.



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Posts 513
Re: Carb Jets for 2-into-1
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edessex,a Motad requires NO re-jetting.

Motad`s are "plug`n`play".




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   03-11-2010, 3:30 PM
Shep is not online. Last active: 7/23/2010 8:36:20 PM Shep



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Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,638
Re: Carb Jets for 2-into-1
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 Eurovee. wrote:
edessex,a Motad requires NO re-jetting.

Motad`s are "plug`n`play".





Ditto.I fitted one to my Bitsa CX before I took it off the road and all it needed was a little tweak of the idle mixture

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   03-12-2010, 1:12 AM
edessex is not online. Last active: 3/12/2010 6:20:26 PM edessex

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Re: Carb Jets for 2-into-1
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Perfect!  Thats what I like to hear.  Cheers guys.  I can get on with the carb re-building now.  I can get them balanced once I know the engine runs fine!
1981 Honda CX500 (Rat)
(From sunny old England)
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   03-12-2010, 1:15 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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southern spain
Posts 4,999
Re: Carb Jets for 2-into-1
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ed,post a picture of your rat here http://choppercharles.com/cs/forums/41105/ShowPost.aspx
we would like to see it.if you cant post pictures yet,email me your photo and ill do it for you

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   03-12-2010, 1:23 AM
edessex is not online. Last active: 3/12/2010 6:20:26 PM edessex

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Re: Carb Jets for 2-into-1
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I was going to post up some photos yesterday, but all my CX ones are missing off my computer!

Might take some tonight if I can't find any on CDs...


1981 Honda CX500 (Rat)
(From sunny old England)
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   03-12-2010, 1:42 AM
edessex is not online. Last active: 3/12/2010 6:20:26 PM edessex

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Joined on 09-11-2007
Nr. Stansted Airport, UK
Posts 7
Re: Carb Jets for 2-into-1
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Found one photo, so posted it up... taken just after I bought it (bad quality as from old phone), made me reaslise I've had it 3 years and not heard it running yet!
1981 Honda CX500 (Rat)
(From sunny old England)
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   03-12-2010, 1:55 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



Top 10 Posts
Joined on 02-12-2009
southern spain
Posts 4,999
Re: Carb Jets for 2-into-1
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 edessex wrote:
Found one photo, so posted it up... taken just after I bought it (bad quality as from old phone), made me reaslise I've had it 3 years and not heard it running yet!

nice bike,that tank looks massive

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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