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KAWASAKI
4 STROKE
INATKE
SYSTEMS
ENGINE/
GASKETS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
ULTRA 250X/260X • AIR INTAKE SYSTEMS
R&D UNIVERSAL
FUEL PRESSURE
REGULATOR
Universal bypass fuel
pressure regulator for
carbureted or EFI fuel
systems applications.
Base fuel pressure is
adjustable from 20 to 60 PSI
with high pressure spring
(installed). Ideal for carbureted and EFI bypass applications where more flow
and superior pressure control are desired. R&D offers two types of fuel pressure
regulator set ups. Part #801-25010 will come completely assembled with #4 fit-
tings ready for R&D custom hoses with #4 AN fittings for a nice high perform-
ance hot rod look. Part #801-25009 will have brass 3/8” to 1/4” barb 90 degree
fittings installed for use with push on type hose and Otekier style clamps for
security. R&D offers a high performance Coast Guard approved fuel hose that
can be purchased by the foot (Part #611-27502), as well as the Otekier style
clamps (Part #611-27518).
The universal type bypass style regulator is capable of handling any fuel pump
up to 250 GPH. Replace “Deadhead” regulator performance and experience full
flow volume and steady fuel pressure.
R&D offers a mounting bracket (Part #801-25011) that specifically mounts the
fuel pressure regulator on top of the inner cooler. This location allows the R&D
custom fuel lines to route perfectly.
Description
Part No.
R&D Fuel Pressure
801-25010
Regulator AN Style
(pictured above)
R&D Ultra 250X Mounting Bracket for Fuel
801-25011
Pressure Regulator
R&D ULTRA 250X
FUEL LINE KITS
R&D fuel lines are produced using high
performance billet anodized
AN fittings coupled to Type A SAE J
1527 US Coast Guard Approved fuel
line. All Ultra 250 fuel lines are cut to
specific length and pre-assembled to
ensure a perfect seal, custom fit, and that awesome hot rod look.
Description
Part No.
Rail to Regulator
611-27513
Regulator to Tank
611-27514
w/Standard Tank Bulkhead Fitting Kit
Regulator to Tank w/ Standard Tank Vent Fitting
611-27515
Regulator to Fuel Gauge
611-27516
Type A SAE J 1527 US Coast Guard Approved
611-27502
1/4" Fuel Line -
Sold per foot.
1/2” Otekier Style Clamps
611-27518
R&D ULTRA 250/260X FUEL
GAUGE ADAPTER FOR
TESTING AND TUNING
R&D Fuel Gauge Adapter allows you to mount the fuel
pressure gauge directly to the fuel pressure regulator.
Description
Part No.
R&D Ultra 250/260X Fuel Gauge Adapter
611-27517
*Sold by the set only
611-27500
611-27499
AN STYLE
BARB STYLE
R&D ULTRA 250X FUEL RAIL
RETURN LINE ADAPTER FITTING
R&D offers a unique Fuel Rail Return Line Adapter fitting which will allow
quick and easy connections of high performance fuel pressure regulators
or fuel pressure gauges. The R&D Fuel Rail Fitting has the O.E.M. tapered
metric thread pitch for easy bolt on assembly (no tapping required)
installation. The R&D Fitting is available in two types: barb type push on hose
connections and #4 AN type connections.
Description
Part No.
Barb Style (Fuel rail fitting)
611-27499
AN Style (Fuel rail fitting)
611-27500
R&D UNIVERSAL #4 AN
FUEL RETURN LINE FITTING
ADAPTER KIT
The R&D Universal Fuel Return Line Adapter Fitting
can be installed into the top of any fuel tap assembly by
finding a clear area on top of the fuel tap system large enough to install the
fitting. Drill a 15/32 or #56 (.468) drill size hole and install the fitting using the
kit supplied aluminum seal washer on each side of the fitting. The R&D uni-
versal fuel return fitting kit is the safest and cleanest way to properly install a
fuel return to the top of any make or model fuel tap assembly. Kit comes with
one #4 AN bulkhead fitting, one # 4 AN bulkhead nut, and two #4 AN 7/16"
Aluminum washers.
Description
Part No.
R&D Universal #4 AN
611-27501
Style Fuel Return Line Adapter Kit
R&D ULTRA 250X DEEP
FUEL PICKUP
The R&D Deep Fuel Pickup is designed to
maximize fuel volume. The stock fuel pickup is
located horizontally in the gas tank three inches above the bottom of the
tank. This leaves approximately 5 gallons of unusable fuel in the bottom of
the tank. The R&D Deep Fuel Pickup relocates the stock fuel pickup to the
bottom of the tank in a vertical position. The new positioning allows for 24
percent more riding time per tank of gas.
Description
Part No.
R&D Ultra 250X/LX Deep Fuel Pick Up
801-25100
ULTRA 250/260X FUEL
PUMP PRESSURE
REGULATOR
BLOCKOFF FITTING
R&D offers a Fuel Pump Pressure Regulator Blockoff Fitting Kit which will
allow the O.E.M. stock in tank fuel pressure regulator to be removed com-
pletely and replaced with a billet part which is necessary when installing an
aftermarket externally adjustable fuel pressure regulator. The R&D fitting is
manufactured to “Deadhead” or block the port solid, however, the fitting is
pre-machined and tapped and can be relief drilled to be able to install a
Mikuni Super BN Series jet directly into the fitting for a small in tank restrictor
jet which for fine tuning fuel pressures.
*Mikuni Jet not included.
Description
Part No.
250/260X Fuel Pump Pressure Reg. Blockoff Fitting
811-25100