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YAMAHA
4 STROKE
INATKE
SYSTEMS
ENGINE/
GASKETS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
YAMAHA FX-SHO & FZ • FUEL SYSTEM
R&D FX-
SHO/FZR/FZS HIGH
PERFORMANCE
FUEL INJECTOR KIT
When boosting the horsepower
on the FX-SHO/FZR/FZS four stroke fuel injected engine, whether using high
compression pistons, cams, or higher ratio supercharger compressor wheels,
it will be necessary to increase the fuel flow delivery. The OEM Yamaha SHO
injectors have been precision flow rate tested to be 80 percent peaked on
stock units at sea level without modifications. R&D offers high performance
fuel injectors with a higher atomization spray pattern that are easily capable
of delivering fuel flow specifications to accommodate up to 400 horsepower!
R&D has flow rate tested the O.E.M. Yamaha SHO injectors and verified them
to flow 396 cc at 43 PSI of fuel pressure, which rates them to flow 30 pounds
of fuel per hour. The R&D High Performance Fuel Injectors have precision
flow rate tested to 525 cc at 43 PSI of fuel pressure, and 625 cc at 70 PSI of
fuel pressure, which rates them to flow as much as 62 pounds of fuel per
hour. R&D High Performance Injectors have been flow rate tested to perform
excellent, delivering precise fuel at fuel pressure ratings ranging from 40 to 80
PSI. Each R&D High Performance Fuel Injector Kit will come packaged with
vital flow test rating information that will be broken down specifically in five
pound increments in fuel pressure to give the fuel flow delivery information
that will help in tuning fuel pressure to match the engines fuel flow needs
based on horsepower gains over stock. R&D offers only the highest quality
fuel injectors, fuel pressure regulators, and fuel management accessories, for
all your engine management needs.
*812-18001 R&D ID 725 CC Injector Kit - 375-400 HP
**812-18002 R&D ID 1000 CC Injector Kit - 400+ HP
Description
Part No.
R&D FX-SHO/FZR/FZS High Perf. Fuel Injector Kit
812-18000
R&D FX-SHO/FZR/FZS ID 725CC Injector Kit*
812-18001
R&D FX-SHO/FZR/FZS ID 1000CC Injector Kit**
812-18002
RIVA FX SHO/FZR
PRO-SERIES FUEL
INJECTOR KIT
Riva’s high performance fuel injector kit supplies modified Yamaha 1.8 liter
Supercharged engines with additional fuel for RIVA Stage II & III applications.
These 95lb injectors are designed for use with RIVA Pro-Series ECU
(RY11840-01-C, page 7) for correct calibration. Injector sets are flow-matched
for optimum idle quality and peak performance.
Description
Part No.
Riva FX-SHO/FZR/FZS
RY12040-I-KIT
Pro-Series Fuel Injector Kit
R&D #4 & #6 FUEL
RETURN LINE KIT
R&D has developed a two larger
fuel return line kits for the
FX-SHO/FZR/FZS. Increasing
the diameter of the fuel return
line to #4 or #6, decreases line
pressure and increases fuel
volume, yielding increased tuning
ability in high heat and higher
performance applications.
Description
Part No.
R&D #4 Fuel Return Line
612-00082
R&D #6 Fuel Return Line
612-00083
R&D FX-SHO/FZR/FZS
MULTI-PRESSURE PORT BOOST
GAUGE/SURGE/RRFPS ADAPTOR KIT
The R&D Yamaha FX-SHO/FZR/FZS Multi-Pressure Port Adaptor Kit will
allow quick and easy hook up of digital or manual boost gauges with the
R&D Multi-port billet adaptor. The R&D Pressure Port Adaptor installs
between the MAP sensor and the MAP sensor bracket as a “bolt on” part
with no modifications. Operate a vacuum/boost gauge, check plenum air
temperatures, and operate a surge protection valve at the same time, or run a
boost gauge, surge protection device, and operate a boost referenced fuel
pressure regulator (RRFPR) at the same time with one simple part. The R&D
Pressure Port Adaptor Kit comes complete with longer MAP sensor mounting
screws, o-ring seals, nylon cable ties, all mounting hardware and instruction.
Description
Part No.
R&D FX-SHO/FZR/FZS Multi-Pressure Port Boost
612-92005
Gauge/Surge/RRFPS Adaptor Kit
R&D FX-SHO/FZR/FZS HIGH PERFORMANCE
HIGH VOLUME FUEL PUMP KITS
R&D Performance carries a complete line up of high performance
replacement fuel pumps that are machined specifically to fit the Yamaha
FX-SHO/FZR/FZS fuel pump housing and are offered in a variety of flow
ratings to facilitate from basic low cost replacement to an all out 500 H.P. race
machine. All R&D FX-SHO/FZR/FZS fuel pumps have been precision flow
rate tested and charted in (LPH) liters per hour. R&D FX-SHO/FZR/FZS fuel
pumps arrive complete with Yamaha FX-SHO/FZR/FZS model specific instal-
lation instructions complete with detailed photos that will help make the fuel
pump installation quick and easy.
NOTE: There are no modifications necessary to install the R&D fuel pump
therefore switching back to the O.E.M. fuel pump assembly is quick and easy
as well.
Description
Part No.
R&D FX-SHO/FZR/FZS 190 LPH
812-35190
OEM Replacement Fuel Pump Kit
R&D FX-SHO/FZR/FZS 255 LPH
812-35255
Low Pressure Fuel Pump Kit
R&D FX-SHO/FZR/FZS 255 LPH
812-35256
High Pressure Fuel Pump Kit