Specifications

53
YAMAHA
4 STROKE
INATKE
SYSTEM
S
ENGINE/
GASKETS
EXHAUST
DRIVE LINE
HANDLING
ELECTRICAL
WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACC
E
SSO
RIE
S
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
YAMAHA FX-SHO/FZ/VXR/VXS • PUMP
SKAT-TRAK
FX-SHO/FZR/VXR/VXS
155-75-25 SWIRL
IMPELLERS
RIVA Racing carries the
complete line of Skat-Trak stainless
steel Swirl impellers for Yamaha
FX-SHO & FZ models. Let our
performance experts assist you
with matching the correct impeller with your performance application. Includes
a billet nose boot and impeller wrench.
Description Part No.
Skat-Trak FX-SHO/FZR/FZS 11/19 SY557525SW1119
Skat-Trak FX-SHO/FZR/FZS 12/19 SY557525SW1219
Skat-Trak FX-SHO/FZR/FZS 12/20 SY557525SW1220
Skat-Trak FX-SHO/FZR/FZS 13/20 SY557525SW1320
Skat-Trak FX-SHO/FZR/FZS 13/21 SY557525SW1321
Skat-Trak FX-SHO/FZR/FZS 13/22 SY557525SW1322
Skat-Trak FX-SHO/FZR/FZS 13/23 SY557525SW1323
Skat-Trak FX-SHO/FZR/FZS 13/24 SY557525SW1324
Skat-Trak FX-SHO/FZR/FZS 13/25 SY557525SW1325
RIVA SOLAS
DYNAFLY
R-SERIES
IMPELLER
This all new impeller delivers
unmatched acceleration & top
speed in Yamaha FX-SHO/FZ
applications. The "R" Series
impeller is precision tuned to
RIVA specifications using a pitch block fixture. This offers a higher level of
consistency when matched with RIVA Performance Kits. Includes billet impeller
cone that locks solidly into place with 3 stainless set screws. Ideal for Riva
Stage 1 applications or higher levels of modification when matched with RIVA
Pro-Series FX-SHO/FZ Reduction Nozzle (part# RY23040-N).
Description Part No.
Riva Solas Dynafly Impeller 13/22R YS-DF-13/22R
Solas Recommends: Part No.
FX-SHO/FZ Stock Replacement Impeller YS-DF-14/21
FX-SHO/FZ Limited Boat Replacement Impeller YS-DF-15/22
FX-SHO/FZR/FZS/VXR/VXS
IMPELLER SHAFT
HOLDER TOOL
Developed specifically for the FX-SHO/FZR/FZS
watercraft, this tool is required to change
the impeller. 20mm splined.
Description Part No.
FX-SHO/FZR/FZS/VXR/VXS Impeller Tool TOOL #53
SKAT-TRAK
FX-SHO/FZR
TWIN IMPELLERS
The new Twin Prop design drives
of the line much quicker than the
traditional single prop, and offers
a substantial increase in rough
water hookup.
Engine Mods Pitch Part No.
Main Drive Stock 12/18 SY557525SWM1218
Main Drive Limited 12/20 SY557525SWM1220
Main Drive Supermod 13/23 SY557525SWM1323
Engine Mods Pitch Part No.
Inducer Stock 12/17 SY440ID1217
Inducer Limited 12/17 SY440ID1217
Inducer Supermod 14/18 SY440ID1418
FX-SHO/FZR/FZS/VXR/VXS
R&D PRO COMP. CLUTCH
SAVER BILLET
DRIVELINE COUPLERS
R&D Performance is proud to announce the
release of the new SHO/FZR Pro Comp.
Clutch Saver Driveline Couplers. The new
clutch saver design increases the rotational
mass of the 1800cc engine. The engineers at R&D added approximately 1.5
pounds of weight to the driveline couplers to increase the rotational mass of
the engine. The added mass dampens the moment of inertia and absorbs
shock that the supercharger clutch and pump impeller receive each time the
engine accelerates. The result is smoother engine performance with added
clutch life and reduced prop shock and cavitation. These precision couplers
are made from billet aircraft aluminum and CNC machined to exact tolerance.
Also available for MOD SHOP conversion hull kits.
Description Part No.
SHO/FZR/VXR/VXS 612-01801
Main Drive
Inducer