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mmiller6512
 Post subject: SU Needle
PostPosted: Sun May 13, 2018 10:25 pm 
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Hello Everyone
Could someone please tell me what the standard needle was for a standard 1098 cc .
At the moment it has a #5 and seems to be a bit rich .
Thanks,

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gtogreen1969
 Post subject: Re: SU Neddle
PostPosted: Sun May 13, 2018 11:01 pm 
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mmiller6512 wrote:
Hello Everyone
Could someone please tell me what the standard needle was for a standard 1098 cc .
At the moment it has a #5 and seems to be a bit rich .
Thanks,
AN needle, Red spring, HS2 carby
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mmiller6512
 Post subject: Re: SU Neddle
PostPosted: Mon May 14, 2018 4:57 pm 
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Sorry forgot to mention its a HS4 .

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timmy201
 Post subject: Re: SU Neddle
PostPosted: Mon May 14, 2018 5:05 pm 
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I don't think the HS4 was standard on 1098 engines here?

The chart here has the CZ listed for fixed needle and ABJ for bias (spring) needle
https://www.7ent.com/pages/articles-tec ... eedle.html

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gtogreen1969
 Post subject: Re: SU Needle
PostPosted: Mon May 14, 2018 5:31 pm 
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Yep HS2 was standard.

There are lots of previous questions about this. Just do a search for HS4 needle or the like. search.php?keywords=hs4+needle&terms=all&author=&sc=1&sf=all&sk=t&sd=d&sr=posts&st=0&ch=300&t=0&submit=Search
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drmini in aust
 Post subject: Re: SU Needle
PostPosted: Mon May 14, 2018 5:57 pm 
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I found a CP4 works well in an hs4 with sports filter. On a 1098.

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mmiller6512
 Post subject: Re: SU Needle
PostPosted: Tue May 15, 2018 3:15 pm 
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Location: South West Rocks
Thanks everyone
I have ordered a cp4 and a cz . Ive no idea how it got a hs4 fixed needle #5 in it .

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timmy201
 Post subject: Re: SU Needle
PostPosted: Tue May 15, 2018 3:28 pm 
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A #5 looks like a plausible option as well


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Bill B
 Post subject: Re: SU Needle
PostPosted: Tue May 15, 2018 7:09 pm 
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5 needle was used on MG & GT 1965-66 in twin HS4s. Maybe that's where the carb came from?
My little book says that 1098cc minis using HS4 single carb as standard (as in auto minis) for '65-'66-'67-'68-'71 all used DL needles as Std.
If Dr Kev says CP4 works then that's a good guide. CP4 and DL are leaner than #5.
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drmini in aust
 Post subject: Re: SU Needle
PostPosted: Tue May 15, 2018 9:50 pm 
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Note I said with sports filter. Ramflo.
CP4 may be a little rich with a stock filter.

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