Mikuni RS 38 smoothbore flatslide carburetors.

High performance smoothbore flatslide pumper carburetor kit which offers superior horsepower gains (of up to 25%) over the stock carburetors. Instant throttle response is provided by the (fully) adjustable accelerator pump, while the smoothbore flatslide design allows for a smooth power delivery without flat spots over the entire rpm range.

Details:

• Mikuni RS38 flatslide carburetors
• with accelerator pump
• with choke
• center-center carb spacings: 77-85-77mm.
• OD front: 42mm.
• OD back: 55mm.
• total length: 100mm.

You will get:

• carburetors
• jetting kit
• mounting hardware.

These fit:

• Yamaha FJ1100/1200
• Yamaha XJR1200/1300 *

Don’t forget to double-check if these carburetors fit your engine (carburetor spacings, OD front and OD back). The stock throttle cables don’t fit these carbs, a throttle/throttle cables kit is optional.

Questions? We’re here to help.
Ready to race..

* please note: the XJR1200 and XJR1300 use TPS, while RS carb don’t have TPS. It  is therefore necessary to add TPS yourself, or switch to an ignition system which doesn’t use TPS