Nitrous Express CARBURETOR PLATE SYSTEMS - Manual (Page 5)

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7. Follow illustration “B” when wiring the system, the relay must be used in all applications.
8. Solder all connections for a permanent trouble free installation.
Note: The nitrous and fuel solenoids are rated only for intermittent duty. Do not engage either solenoid for
more than 20 continuous seconds. Solenoids that have “burned or scorched” electro-magnets will not be
replaced under warranty.
COMPLETING AND TESTING THE SYSTEM
1. Reinstall the carburetor; hook up all vacuum lines, and linkages using the diagram prepared before
disassembly.
2. Reconnect the fuel line and tighten securely.
3. After all components have been assembled on the vehicle and each piece has been verified for correct
installation and the wiring has been rechecked and verified to be correct, it is time to test the system.
4. After installing the nitrous bottle in the brackets previously mounted in section 1, connect the bottle to the
supply line and tighten firmly, do not over tighten (use no Teflon tape on any component of this system). Do
not open the bottle valve at this time.
5. Reconnect the negative battery cable.
6. Using the master arming switch “Arm” the nitrous system.
7. Test the solenoid operation by “Engaging” the WOT switch. Both solenoids should “Click”. If they do not,
re-verify all electrical connections and wiring diagrams.
8. Open the nitrous bottle and check all connections for leaks. Retighten any fitting or connection that leaks
and recheck.
9. Start the engine and check for fuel leaks, correct any fuel leak problems before proceeding.
10. Adjust the fuel pressure regulator at this time. A Master Flo-Check (PN #15519) or Master Flo-Check Pro
(PN # 15529) should be used for accurate fuel pressure settings
11. All NX systems are intended for off road use only and should only be used in that context.
12. Choose a suitable testing area, such as your local race track is best. Drive the vehicle to verify all operations
are normal and the throttle linkage is operating properly.
13. Pre-stage the vehicle, arm the system, purge the air from the supply line using 3 one-second bursts from
the purge valve (PN 15600-15601). Stage and launch the vehicle, shutting off at the 60ft mark. Check all
system components to verify proper operation, correct any noted problems before proceeding.
14. Repeat the staging procedure, the system should be crisp and responsive, make a full throttle pass and shut
the engine off for a spark plug check. Verify each cylinder is getting equal amounts of N2O and fuel. The
plugs should have little or no color, if they are sooty or black the fuel pressure must be reduced for
optimum performance.
SAFETY TIPS
Do not attempt to start engine if nitrous has been accidentally injected while the engine was not running. Disconnect
coil wire and turn motor with throttle wide open for several revolutions before attempting to restart. If it is not
possible to disable the ignition then the spark plugs must be removed and the engine cleared of all nitrous before
attempting to start engine.
1. Never permit oil, grease, or any other readily combustible substances to come into contact with nitrous cylinders,
valves, solenoids, hoses and fittings. Oil and certain gases (such as oxygen and nitrous oxide) may combine to
produce a flammable condition.
2. Never interchange solenoids or other appliances used for one compressed gas with those used for another.
3. Identify the gas content by the label on the bottle before using. If the bottle is not identified to show the gas
contained, return the bottle to the supplier.
4. Do not deface or remove any markings, which are used for content identification.
5. Cylinder valves should be closed except when nitrous is actually being used.
6. Notify supplier of any condition, which might have permitted any foreign matter to enter the valve or bottle.
7. Never drop or violently strike the bottle
8. Keep valves closed on all empty bottles to prevent accidental contamination.