69
ULTRA 250/260/300/310 • ENGINE
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KAWASAKI
4 STROKE
INTAKE
SYSTEMS
ENGINE/
GASKETS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
RIVA ULTRA VALVE TRAIN
UPGRADE KIT
RIVA’s Valve Train Upgrade Kits increase
the reliability of your modified engine by
reducing the possibility of valve float at
high rpm. Includes lightweight, precision-
machined titanium valve retainers, racing
valve springs, and base washers.
Description
Part No.
RIVA Ultra Valve Train Upgrade Kit
RK19085-VTU
Ultra 250/260, STX-15F
CARRILLO CONNECTING RODS
Description
Part No.
Carrillo Connecting Rod Set
KA-STX15>-8M4449S-04
ULTRA 250/260/300 & STX-15F (sold 4 rods per set)
250X/260X 274213 1498cc
83mm
STD
9.5:1
JG1001-3268
250X/260X 290051 1498cc
83mm
STD
10.5:1
JG1001-3268
300X 300271 1498cc 83mm STD 9.5:1 JG1001-3268
300X 300272 1498cc
83mm
STD
10.5:1
JG1001-3268
*Sold as Kit (4 pistons per kit)
**Piston sold complete with: rings, piston pin and locks
PISTON
KIT # DISP.
BORE
SIZE
OVER
SIZE
COMP.
RATIO RING #
MODEL
M4049
83mm Standard Bore (1498cc)
CPN-3268
2009 - 12 Kawasaki Ultra 260X 9.5:1 Turbo
M4050
83mm Standard Bore (1498cc)
CPN-3386
2009 - 12 Kawasaki Ultra 260X 10.5:1 Turbo
Stock Bore: 3.267 (83mm)
*Sold as Kit (4 pistons per kit)
**Piston sold complete with: rings, piston pin and locks
CP PISTON KITS
FOR KAWASAKI
Ultra 250X (2007-08), Ultra 260X (2009-10) Ultra 300X (2011-13)
SuperCharged 4 stroke, DOHC inline 4 cylinder Stock CR: 8.4:1
Stock Bore: 3.267 (83mm) Stock Stroke: 2.724 (69.2mm)
DESCRIPTION
RING #
PISTON
KIT
WISECO PISTON KITS
FOR KAWASAKI
ULTRA 260LX/260X
JE PISTON KITS
FOR KAWASAKI ULTRA 250X/260X/300X
Kawasaki
Bore x
Piston Kit Replacement Pins &
Model
Years Stroke (mm)
Number
Ring Set
Clips
Wrist Pin
ULTRA 260LX 2009-10
83.00
40048M08300*
8300XX
S624
ULTRA 260X 8.4:1
x
Circlips
Compression 69.2
CW28
Wrist Pin
ULTRA LX
2009-10
83.00
40052M08300*
3268XG
S561
STX 15-F
2008-10
x
Circlips
STX
2009-10
69.2
CW21
10.6:1
Compression
ArmorGlide™ Skirt Coated
Piston sold complete with: rings, piston pin and circlips.
*Sold individually
RIVA VALVE COMPRESSION TOOL
RIVA’s overhead Valve Compression Tool allows easy removal of valve springs
and keepers without removing the cylinder head. Includes compression adapter
to pressurize cylinder keeping valves in place during removal of stock springs
and keepers.
Fits both Kawasaki 1.5L & Yamaha 1.8L 4-stroke engines.
Description
Part No.
RIVA Valve Compression Tool
RY19040-VCT
Fits Kawasaki 1.5L 4-stroke & Yamaha 1.8L
RIVA KAWASAKI
HIGH PERFORMANCE
VALVE SET
• Stronger & lighter than stock valves.
• Redesigned valve heads for improved
air flow & strength.
• High grade stainless intake valves resist
corrosion.
• Inconel exhaust valves resist heat from
high boost applications.
• Valve stems feature hard-chrome plating for superior wear & lubricity.
• Includes high strength valve locks. • Sold in sets of 16 (8 Intake/8 Exhaust)
Description
Part No.
RIVA Ultra 250/260, STX-15F*
RK19085-HPV-0
High Performance Valve Set
*300X exhaust valves are 1mm larger than 250/260
PRO-X VALVE SHIM KIT
Easy and economical replacement shims.
Precision machined to match exact size.
Specific heat-treatment ensuring hardness
to offer maximum durability and less wear.
Description
Part No.
Pro-X Valve Sim Kit
29.VSA948
*This Pro-X Valve Shim Kit is for Kawasaki STX-12F (03-04),
STX-15F (04-09), Ultra LX (07-09), Ultra 250X (07-08), Ultra 260X (09-10)
