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manifolds for Keihin Flat CR bike carbs
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sold for $565
looks like minimal CAM work done, maybe installer finishes polishing it?

for A-series engine

Says it was manufactured by All Sports Buhin
http://www012.upp.so-net.ne.jp/buhin

Quote:
NISSAN A12系エンジン用
FCRキャブ用インマニkit
A12系エンジンに取り付けるインマイキットの説明です。
ご参考として紹介たもす。
エンジンの仕様にもよりますが、ソレックス、ウエーバーで20ps~30psアップに対して、30ps~50psアップが望めます。
パワーアップと共にそのレスポンスは、まるでモーターサイクルとも云われていもす。
サニトラなど軽量ボディとの効果でユーザー様ヲをFCRの虜にしていもす。

Quote:
For NISSAN A12 series engine
Inmani kit for FCR cab
It is a description of the in-my kit attached to the A12 series engine.
I introduce it as a reference.
Depending on engine specifications, we can expect 30ps to 50ps up against 20ps to 30ps up with Solex and Weber.
Along with the power-up, the response is also referred to as a motorcycle.
The effect with the lightweight body such as Sanitra also makes ???

Attach file:



jpg  manifold carb side.jpg (83.96 KB)
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jpg  FCR intake manifold kit for A-series engine.jpg (83.08 KB)
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jpg  carb side.jpg (106.02 KB)
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jpg  manifolds.jpg (73.92 KB)
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jpg  oval port.jpg (102.53 KB)
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jpg  port detail.jpg (57.54 KB)
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jpg  sheet.jpg (49.17 KB)
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jpg  side.jpg (91.23 KB)
174_5cfd7c2a9349c.jpg 1200X900 px

Posted on: 2019/6/9 22:38
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Re: manifolds for Keihin Flat CR bike carbs
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Found this FCR tuning page

Posted on: 2019/6/10 1:16
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Re: manifolds for Keihin Flat CR bike carbs
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Found this FCR tuning page

Posted on: 2019/6/10 1:24
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Complete Kit FCR for A-series engine
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hoops_mb has these for sale again
https://auctions.yahoo.co.jp/seller/hoops_mb
Quote:
It is FCR41KIT for Sunny A-type engine ellipse port. Once upon a time, although it had been sold had been discontinued in the bankruptcy of the fabricators of the intake manifold, this time, has started reselling with the cooperation of the new production trader.
...
New FCR carburetor set, intake manifold, insulator, will be a set of instructions.

In additional options, additional negative pressure outlet, such as for the master back, FCR dedicated fuel pump, Thank large number, such as air cleaner, such as K & N.
One month order time $3500

Attach file:



jpg  FCR41 kit for A-series.jpg (49.82 KB)
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jpg  FCR41.jpg (46.05 KB)
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jpg  fcr41-1.jpg (42.31 KB)
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jpg  fcr41-2.jpg (42.58 KB)
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jpg  fcr41-3.jpg (45.13 KB)
174_5cfda56cc1dae.jpg 640X480 px

jpg  Flat CR A-series.jpg (48.48 KB)
174_5cfda5732b4cb.jpg 640X480 px

jpg  hoops special tuning A14.jpg (45.50 KB)
174_5cfda57873730.jpg 640X480 px

Posted on: 2019/6/10 1:34
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Re: manifolds for Keihin Flat CR bike carbs
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For 3500$ I can do that kit.

I’m pretty sure I can do it for less too.

July I’m back in my shop once again full time.

Posted on: 2019/6/10 4:05
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Re: manifolds for Keihin Flat CR bike carbs
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The kit includes four new Keihin carburetors plus initial jetting, consulting/installation help

Posted on: 2019/6/10 5:22
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Re: manifolds for Keihin Flat CR bike carbs
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yeah I can only guarantee that they come with factory base settings and jets for an A12.

less though. $3500 just seems so astrinomical.

$1300-$1600 for the new Carburetors and I produce those manifolds for $500-$600. Maybe there is other stuff I am not seeing.

Posted on: 2019/6/10 19:20
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Re: manifolds for Keihin Flat CR bike carbs
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Plenty of cv bike carbs will run quite as well on A series
Had 28mm old flatties that ran beautifully on A12 1270cc
Bike tuner got me out of trouble on all my arc welded 1990s
efforts as I had a few glazed bores with my overfueled tuning!

Posted on: 2019/6/11 4:58
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Re: manifolds for Keihin Flat CR bike carbs
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The manifolds on my car (one for each pair of cylinders) are made up of 5 parts; flat plate with tubular halfs welded together. The carbs attach to the manifold via what appears to be rubber fuel filler hose.

Posted on: 2019/6/12 4:41
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Re: manifolds for Keihin Flat CR bike carbs
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One big problem with FCR carbs is if you go below a 200 main air corrector jet they run very poorly as the factory type emulsion tubes do not have air bleed holes and under a 200 MAJ the mixture control turns to crap and power drops of significantly.

The equivalent Mikuni flatslide carbs as used on many Harleys do not have the same issues, CV carbs are a great option provided whomever is tuning them knows how to use air corrector jets to jet not just changing mains, Idles etc

Posted on: 2019/8/24 3:26
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