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#1
manifolds for Keihin Flat CR bike carbs
ddgonzal
Posted on: 2019/6/9 22:38
sold for $565
looks like minimal CAM work done, maybe installer finishes polishing it? for A-series engine Says it was manufactured by All Sports Buhin http://www012.upp.so-net.ne.jp/buhin Quote: NISSAN A12系エンジン用 Quote: For NISSAN A12 series engine
#2
Re: manifolds for Keihin Flat CR bike carbs
ddgonzal
Posted on: 2019/6/10 1:16
Found this FCR tuning page
#3
Re: manifolds for Keihin Flat CR bike carbs
ddgonzal
Posted on: 2019/6/10 1:24
Found this FCR tuning page
#4
Complete Kit FCR for A-series engine
ddgonzal
Posted on: 2019/6/10 1:34
hoops_mb has these for sale again
https://auctions.yahoo.co.jp/seller/hoops_mb Quote: It is FCR41KIT for Sunny A-type engine ellipse port. Once upon a time, although it had been sold had been discontinued in the bankruptcy of the fabricators of the intake manifold, this time, has started reselling with the cooperation of the new production trader.
#5
Re: manifolds for Keihin Flat CR bike carbs
Mattndew76
Posted on: 2019/6/10 4:05
For 3500$ 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.
#6
Re: manifolds for Keihin Flat CR bike carbs
ddgonzal
Posted on: 2019/6/10 5:22
The kit includes four new Keihin carburetors plus initial jetting, consulting/installation help
#7
Re: manifolds for Keihin Flat CR bike carbs
Mattndew76
Posted on: 2019/6/10 19:20
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.
#8
Re: manifolds for Keihin Flat CR bike carbs
D
Posted on: 2019/6/11 4:58
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!
#9
Re: manifolds for Keihin Flat CR bike carbs
Rallytwit
Posted on: 2019/6/12 4:41
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.
#10
Re: manifolds for Keihin Flat CR bike carbs
coxsteve
Posted on: 2019/8/24 3:26
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 You can view topic.
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