【JB POWER (BITO R&D)】FCR Carburetor Review
GSF 400: Big Pistons with GSXR Cams
Loving these 33mm FCR carbs! Bike is a 1992 GSF 400 with .04 over Suzki pistons and gk73 GSXR 400 camshafts. Tune: 125 Main Fuel Jet, 200 Main Air Jet, 42 Slow Jet, 2 1/2 turns out on fuel screw, 3/4 turns out on air screw.
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I thought setting was necessary.
BITO's Settled fcr,
what kind of state (Exhaust System, ignition system, etc.) I don't know if you did the Setting in the
It is unknown, so if you are particular about it, you will need a Setting that matches your vehicle.
As for the delivery time, it was originally scheduled to take about 3 months, but it arrived in one month.
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Setting completed
Racing carburetor is still fun!
Run several times in the actual run setting.
Jet needle step change is almost ok.
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It performed exactly as I expected. (*^^*)
Quantity, depending on the individual:Pair (for Left and Right) I think it will be done, but I was able to turn comfortably by adjusting only the Needle clip. View detail
The FCR Carburetor Body you've always wanted!
I had been on the fence about buying it, but I was informed that the price will go up by about 32,000 yen starting April 1.
I made the decision to purchase.
The setting for the car model was already out to some extent, but once the Jet and other products were installed, it was not possible to use them.
Checked the number of screw-related returns and tuned the throttle valve.
Also, I installed a SEPBearingGuide (I'll skip this since it has nothing to do with product impressions).
Installation is easy for those familiar with the OEMcarburetor, as it simply replaces the OEMcarburetor.
After starting the engine and adjusting the idling, the car was ready for a test run.
As expected, FCR Carburetor Body Response like a demon!
Acceleration like a demon...?
The Exhaust System has been replaced with an external one, so it is obviously thin. (Breathing at 6000 rpm)
Quantity of Main jet in the future:Set is purchased and Setting is issued.
Low speeds run without any problems.
After all, it is shipped with the settings for the car model, so it will run to some extent.
From there, I'll boil it down to my own taste.
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FCR Carburetor Body of your dreams
My first impression of the installation was that the Throttle was very heavy! No amount of Wire routing or type of Wire could improve it.
So we changed the Spring to a lighter one, and it now feels as good as the OEM one. The spring change is not possible without a full reverse operation.
Other than that, the acceleration power is as good as its reputation.
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