Specifications

52
INTAKE
SYSTEMS
YAMAHA
4 STROKE
ENGINE/
GASKETS
EXHAUSTDRIVE LINE
HANDLING
ELECTRICALWATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACC
E
SSO
RIE
S
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
YAMAHA FX-SHO/FZ/VXR/VXS • PUMP
R&D FX-SHO/FZR/FZS/VXR/VXS
PERFORMANCE EXIT NOZZLE
The new R&D cast aluminum exit nozzle is designed
to fine tune the pump and prop to maximize
performance and rpm. The new R&D exit nozzle is
available in 2.5 and 5 degree up sweep angles. The 5
degree positive angle lightens the nose of the craft
and adds top speed; this is great for recreational use. The 2.5 degree delivers
improved performance in rough water conditions by producing more nose
pressure to drive the hull through the bumps; this design is perfect for closed
coarse and offshore competition. Both types are available in bore sizes of 80,
80.5, 81, and 81.5. *Custom bore sizes from 80 to 90 available at no extra
charge, specify size when ordering. The maintenance free R&D cast aluminum
and powder coated one piece construction exit nozzle is the better alternative
to a removable ring design. With the new R&D nozzle the OEM reliability and
safety is retained, because there is not a removable ring sleeve to vibrate
loose, falls out and gets wedged in the steering nozzle creating a whole new
definition to the term BUCKING.
**Custom bore sizes available at no extra charge, specify size when ordering**
Description Part No.
R&D Perf. Exit Nozzle 2.5 degree 80mm 162-82800
R&D Perf. Exit Nozzle 2.5 degree 80.5mm 162-82805
R&D Perf. Exit Nozzle 2.5 degree 81mm 162-82810
R&D Perf. Exit Nozzle 2.5 degree 81.5mm 162-82815
Description Part No.
R&D Perf. Exit Nozzle 5 degree 80mm 162-85800
R&D Perf. Exit Nozzle 5 degree 80.5mm 162-85805
R&D Perf. Exit Nozzle 5 degree 81mm 162-85810
R&D FZR Perf. Exit Nozzle 5 degree 81.5mm 162-85815
RIVA FX-SHO/FZ
PRO-SERIES REDUCTION
NOZZLE
Our Pro-Series Reduction Nozzle is ideal for
tuning your Yamaha pump combination
to maximize performance. Nozzle exit
diameter can be easily changed via
interchangeable ring system. Looking for more
RPM or acceleration power? Insert a larger
diameter ring. Want more top speed or less RPM? Install a smaller diameter
ring. Nozzle includes three precision-machined stainless steel rings in gradu-
ated sizes (81, 82 & 83mm). Additional ring sizes available.
Note: Nozzle eliminates water spout function to maximize performance and
conform to racing safety rules.
Description Part No.
RIVA FX-SHO/FZ Pro-Series Reduction Nozzle RY23040-N
R&D FX-SHO/FZR/FZS/VXR/VXS
ANTI-CAVITATION CONE
Our Pro-Series Reduction Nozzle is ideal for tuning
your Yamaha pump combination to maximize
performance. Nozzle exit diameter can be easily
changed via interchangeable ring system. Looking for more RPM or acceleration
power? Insert a larger diameter ring. Want more top speed or less RPM? Install
a smaller diameter ring. Nozzle includes three precision-machined stainless
steel rings in graduated sizes (81, 82 & 83mm). Additional ring sizes available.
Note: Nozzle eliminates water spout function to maximize performance and
conform to racing safety rules.
Description Part No.
Anti-Cavitation Cone 162-18000
SHO/FZR R&D
ANTI-CAVITATION
TRANSOM PLATE
MACHINING
MODIFICATION
R&D’s new SHO/FZR Anti-Cavitation
Transom Plate Machining Modification service is now available. The
engineers at R&D have been successful at reducing pump cavitation by
removing the restriction in the OEM Transom Plate. The OEM Transom Plate
has a 3mm taper that restricts water flow in front of the prop. Removing this
restriction significantly reduces cavitation and improves holeshot and hook
up with any prop type or diameter. The service includes line boring the
Transom Plate and blue printing the new pump shoe diameter to blend with
the R&D Aquavein Intake Grate, and the sealing surface of the transom
plate where it mounts the hull is also improved by plugging the OEM casting
pocket in the face of the Transom Plate with R&D’s Sure Seal Urethane
Material. R&D also offers the service to a new OEM Transom Plate available
for immediate shipping.
Description Part No.
Transom Plate Machining Service 162-18004
Complete new FZR Transom Plate 162-18005
w/Machining Service
Complete new SHO Transom Plate 162-18006
w/Machining Service
RIVA BILLET DRIVESHAFT
SLEEVE KITS
Our precision machined Billet Driveshaft Sleeve is a direct replacement for
the thin factory rubber hose that is prone to distortion and failure. Sleeve is
constructed of 6061 aluminum and is anodized to prevent corrosion. Kit
includes high quality silicon couplers and stainless steel clamps. This
upgraded sleeve kit is highly recommended for performance applications due
to increased pump pressure that accelerates failure of original rubber hose.
Description Part No.
Billet Driveshaft Sleeve Kit FX/FZ All RY30040-DSS
Billet Driveshaft Sleeve Kit VXR/VXS RY30060-DSS