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145
FOUR
STROKE
INTAKE
SYSTEMS
ENGINE/
GASKETS
EXHAUST
DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
Description
MSD External Starter Relay
Part No.
M4390
MSD EXTERNAL STARTER RELAY
This 12 volt relay is a heavy duty unit designed to mount outside the electrical
box. It’s made with material that locks out moisture and chemicals. The large
copper terminals assure good solid contact with your wiring. The stainless steel
base plate allows the relay to be mounted in any position. Rated at 65 amps.
Description
Kawasaki 750 SX/SXI/95ZXI
Part No.
4251
YAMAHA 650/701 ENHANCER
4253
ENHANCER IGNITIONS
4255
42551
SEA-DOO 800 ENHANCER
At lower rpm you’ll notice incredible acceleration and throttle response due
to advancing the timing. Then as the rpm increases, the timing is retarded
to the factory setting to prevent detonation and engine damage. for racers,
there is also a lower rpm limit that you can activate for quick and consistent
holeshots. By activating a switch (Part# 4372 see page 144) mounted on the
handle bar the rpm will limit at approximately 3,000 rpm. The instant the but-
ton is released, the rpm revs up just as normal and you rocket off. Everything
you need to install the Yamaha Enhancer is supplied along with factory
connectors for a direct plug-in installation!
Not compatible with Yamaha 760 engine applications.
Description
Yamaha 650/701
Part No.
4253
Description
Sea Doo 800 ‘95-96
Sea Doo 800 ‘97-98 SPX, GTX Harness Only
KAWASAKI 750 ENHANCER
The Kawasaki 750 Enhancer features the increased spark energy you
expect from MSD plus they have an adjustable rev limiter and holeshot rpm
limit. The rev limit is adjusted with a potential on the back of the ignition
housing. The holeshot feature lets you activate a lower rpm limit that is best
to use for quick starts at the beginning of a race. Also, these ignitions can be
connected to the factory overheat sensor. With this feature, if the water tem-
perature gets too high, the Enhancer will limit the rpm to a safe value to
avoid any engine damage.
Note: Enhancer will not work on 1996Zxi.
4251
The Enhance Ignition for the Sea Doo
®
800 (also the ‘95, ‘96, XP and GSX)
uses a high speed RISC microprocessor to control all of the timer and rev
limiter functions. This opens the door for programming, giving you the ability
to set two rev limits and a timing curve through a series of dip switches built
into the Enhancer. Being able to control the ignition curve lets you match the
timing specifically to your engine and its modifications. The Digital Enhancer
produces a series of sparks through 3,000 rpm rather than just a single
spark. This feature delivers incredible throttle response, acceleration and
keeps the idle clean and smooth. Note: This modification will eliminate the
factory DSS security system and the handlebar kill feature.
Part No.
4255
42551
TIMING ADVANCE PLATE
Description
Timing Advance Plate for Kawasaki
Part No.
4332
The timing advance plate is recommended for all Kawasaki 750 engines
running the Enhancer Ignition. This plate advances the timing 7° for a boost
in low to mid range performance. Note: If you are running excessive
compression or low octane fuel it is recommended that you run the retard
module listed. Must be used with PN 4251 on SXi, XiR, and ZXi.
Each Enhancer is a direct plug in unit and is designed to fit in the stock
location. The Enhancer Ignition gives the racer an edge due to the powerful
spark energy and adjustable rev-limiter. The Enhancer Ignitions produce a
much more powerful spark, as much as four times more spark energy, to
insure complete combustion of the fuel mixture. This complete combustion
results in improved performance including quick throttle response, improved
pulling power and top end, plus will reduce spark plug fouling. Whether your
watercraft is stock or if you’ve added other modifications such as a better
flowing intake or exhaust modifications, the Enhance ignitions will improve
the performance.