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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 • ENGINE
RIVA PRO-SERIES
4-STROKE RACING
PISTONS
Riva’s forged racing pistons
deliver maximum reliability and
performance in high boost &
turbo applications. High strength
piston kits include premium ring
package, tool steel wrist pin &
carbon steel wire locks.
Key Features Include:
• CNC machined from high strength/lightweight forgings.
• Optimized dome design for efficient combustion.
• Improved lubrication hole placement for reduced friction.
• Premium low friction ring package.
• High-strength tool steel wrist pins machined from special tool
steel bar stock & heat treated.
• Carbon steel wire locks.
• Direct replacement diameter plus 2 oversizes available.
8.6 to 1 Compression
Part No.
FX SHO/FZR/FZS (8.6:1/STD)
RY1000-6S5-86
*Sold individually - this is not a set
.
R&D FZR HIGH
PERFORMANCE
FORGED PISTON
KITS
R&DYamaha SHO/FZR Forged
Racing Piston Kits have been
developed for the hard core race
enthusiasts or precision engine
builders who are looking to gain
maximum horsepower and reliability
from their racing engines. R&D offers high quality forged aluminum, heat treated,
and CNC machined racing pistons in stock 8.6-1 or 9.5-1 compression ratios to
replace O.E.M. cast aluminum pistons known to break, crack, or shatter in high per-
formance, high heat conditions. High horsepower marine engines with high boost
pressures are more prone to have detonation over conventional racing engines due
to sustained loads. Forged pistons in marine applications are a must.What ever
performance platform you are planning to build, trust the pros at R&D with all your
compression ratio, boost, and engine management needs or questions.
R&D recommends upgrading to our High Performance Pistons and Rods in
applications producing over 300 H.P. @ sustained RPM's 8,000+.
• Direct replacement piston kits for High H.P. applications
• High quality forged materials replace low performance cast
• Improved ring seal with Nascar Style ring sets
• Increased RPM’s and horsepower by reducing weight
• Works great with high boost compressor wheels and turbo kits
• Retains O.E.M. wrist pins
8.6 to 1 Compression
Part No.
SHO/FZR (8.6-1/STD) - (4 Pistons per kit)
432-18861
*432-18861 is the OEM Replacement Kit
9.5 to 1 Compression
Part No.
SHO/FZR (9.5-1) - (4 Pistons per kit)
432-18951
10.5 to 1 Compression
Part No.
SHO/FZR (10.5-1) - (4 Pistons per kit)
432-18105
FZR HIGH PERFORMANCE
RACING CYLINDER
SLEEVES
R&D High Performance Racing Sleeves are
made to precise specifications specific for
the Yamaha FZR/SHO Supercharged engine.
R&D Racing Sleeves install easily and
properly using the flanged “top hang” register design. The “top hang” design
when installed and seated properly will not drop or slip which will allow 100
percent head gasket contact for a positive head gasket seal. R&D Racing
Sleeves are manufactured from the highest grades of centrifugally cast “Molly
2000” Chrome Molly Iron Alloy to provide superior strength and hardness.
Trouble free installation, boring, and honing using kit supplied installation
instructions and tips on final hone specifications for O.E.M. cast and R&D
Forged Racing Piston Kits are included. When the time comes to repair wavy,
scored, seized, or worn cylinders trust the pros at R&D. We have been
re-sleeving race engines for over 40 years.
Sleeves are sold individually.
Description
Part No.
FZR High Performance Racing Cylinder Sleeves
432-18000
R&D/CARRILLO HIGH
PERFORMANCE RODS
Carrillo is recognized as one of the
finest manufactures of connecting rods
for high performance engines. Carrillo
connecting rods are a precision, high
strength, quality product that reflects the optimum balance between light-
weight and durability. The Light weight forged design is substantially stronger
and lighter than the OEM rod and will deliver the strength needed to perform
reliably under high horsepower supercharged and turbo applications. R&D
recommends upgrading to performance rods when using the R&D Monster
C3-11 & C5-11 Supercharger Wheel or R&D Turbo Kit. Rod kit comes
complete with Silicone Bronze wrist pin bushing and high strength fasteners.
R&D recommends upgrading to our High Performance Pistons and Rods in
applications producing over 300 H.P. @ sustained RPM's 8,000+.
Description
Part No.
R&D/Carrillo High Performance Rods (4 Rod Set)
672-18000
RIVA PRO-SERIES
4-STROKE
CYLINDER HEAD
STUD KITS
Riva’s ultra high strength cylinder
head stud kit is essential equipment
when upgrading internal components on your high boost Yamaha engine.
Precision machined from premium grade 8740 alloy and heat treated to exacting
tolerances, these studs dramatically increase reliability & ease of maintenance.
Key Benefits Include:
• Superior material & heat treat process provide 10X better fatigue strength than
OEM bolts.
• Studs provide improved alignment of cylinder head and gasket for increased
reliability and ease of maintenance.
• More accurate & consistent torque loading provides a more uniform clamping
force on head gasket.
• Helps prevent blown head gaskets and assures optimum engine sealing.
Description
Part No.
RIVA Pro-Series Cylinder Head Stud Kits
RY10040-HSK
FX-SHO/FZR/FZS