Highest performance KEIHIN FCR carburetor.
It increases the power from low rpm to high rpm in the whole range.
It is especially compatible with SR400/500, and is easy to start and easy to handle.
The correct setting will definitely increase the power.
There are a wide variety of setting parts, and even during summer and winter, the engine will run smoothly with only an air screw adjustment.JB Power, which has been selling KEIHIN products for many years and boasts the best sales record in the world, has developed a wide range of products that can be used on many different types of roads, from circuits to general roads.
Based on the data accumulated from many driving tests from circuits to general roads, we have developed this product.
The advanced pre-setting has been done based on the data accumulated from many driving tests on both circuit and ordinary roads.
The throttle is equipped with an internal bearing for a lighter feel.
Jet # for each jet at the time of shipment
SJ Slow Jet: #50
MJ Main jet: #150
The air cleaner box must be removed and the air funnel must be installed.
The air funnel or power filter (sold separately) can be installed.
A breather filter is also required.
The carburetor can be installed on the stock manifold / replica manifold of the 88-00 model year.
Carburetors cannot be installed due to interference with the frame and upright condition.
We recommend installing with BOAACE manifold at the same time.