FUEL
SYSTEMS
ENGINE/
GASKETS
EXHAUST
DRIVE LINE
HANDLING
ELECTRICAL
WATERLINE
/
BILGE
STEERING
&
CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/
HARDWARE
CHEMICAL
FREESTYLE
RACING
FOUR
STROKE
66
The Flow Control Valve provides improved throttle response and much
quicker starts by drying out your waterbox at low rpm and idle speeds.
Tests have shown an average acceleration improvement of 10 feet over a
non-equipped model in the first 50 feet. The Flow Control Valve allows
unrestricted water flow to the Stinger for better top speed.Yet it controls
the amount of water at low speeds for better response. It also allows for
an easier tuning of the Carburetors. It does not interfere with normal
engine or exhaust pipe cooling and is compatible with all electronic water
injection systems. Race Legal for All Classes.Two Models are available.
Both are adjustable. The Standard Flow Control Valve is preset at 3.5
p.s.i. and is adjusted by adding the supplied stainless steel shims to
increase the spring tension. The Pro-Series is externally adjustable by
turning the outer housing by hand. Pressure can be tested with pop off
gauge. All PWC w/OEM or aftermarket exhaust systems (except
Yamaha’s w/OEM exhaust)
Part No.
52-3118
52-3119
52-3122
Description
Standard Flow Control Valve
3/8”
Pro Flow Control Valve
3/8”
Pro Flow Control Valve
1/4”
RIVA EXHAUST STINGER
WATER FILTER/RESTRICTOR
Features fine mesh stainless filter screen that is threaded to accept
Mikuni main jet (not included) for water restriction. Allows removal of
restrictive filter screen in water distribution manifold of single, twin and
triple exhaust systems, providing increased cooling water to motor.
Part No.
RY15-SF38
Description
Exhaust Stinger Water Filter/Restrictor 3/8”
JETWORKS QUICK DISCONNECT
WATER RESTRICTOR
QD-38 comes with 4/3/2mm restrictor inserts used for controlling water
flow through exit passes, stinger, head pipes, etc. QD-14 is for use with
Mikuni Jets (not included), and allows quick change in small increments
of water flow.
Part No.
QD-38
QD-14
Description
Quick Disconnect Water Restrictor 3/8”
Quick Disconnect Water Restrictor 1/4”
QD-14
QD-38
951
EXHAUST END STINGER
Simple exhaust end modification provides power gain.
Part No.
52-3089
Description
SD951 Exhaust End Stinger
RIVA HEAVY-DUTY EXHAUST SPRING KIT
Our Heavy-Duty Exhaust Spring Kits for Factory Pie twin & triple exhaust
systems hold pipes tightly into exhaust manifolds, reducing movement
that robs horsepower and wears o-rings and o-rings cord. Kit includes
6
springs.
Part No.
RY15-HD-SPRING
Description
HD Spring Kit for Triple/Twin Exhaust
JETWORKS FLOW CONTROL VALVE
6
springs
per kit