POWER SPORTS TECH LINE 877-648-7687
Contents
1. you should hear the solenoids click Be sure both solenoids are operating Do not operate the system for prolonged time period with the engine off fuel from the system will flood the engine Start the engine and let it warm to operating temperature Choose a safe place to test ride your bike Always wear all appropriate safety equipment Switch the system to the ON position DO NOT TURN ON THE NITROUS BOTTLE Ride your bike using wide open throttle engaging the nitrous system several times or until the motor loses power and stumbles This purges all air from the fuel circuit and insures it is working properly If your nitrous system fails to produce this over rich stumble STOP and recheck every detail of your installation Once the problem has been located and corrected rerun the procedure Now it is time to turn on the bottle and have some real fun Use EXTREME CAUTION when using your Nitrous Express Nitrous System it is the most powerful system available anywhere Using third gear at or above 3 000 RPM s go to wide open throttle engaging the system An instant power surge should let you know the system is working You are now ready for normal nitrous usage have fun and be careful No tuning is necessary do not change the factory recommended jetting patterns if you have a problem contact the factory tech line Caution The fuel pump furnished with this system is not rated for continuous duty do not leave th2. in the hole making sure you are square to the hole being careful not to cross thread the tap Once the tap has started add a couple of drops of a light lubricant Turn the tap about 2 full turns then go back about 1 3 of a turn this will keep the tap from getting stuck on the removed material Repeat the process until approximately 1 4 of the tap is exposed inside the port Remove the tap and test fit a nozzle when threading the nozzle in by hand it should stop approximately two turns from having the start of the threads flush with the surface of the port If the nozzle will not go in far enough repeat the tapping until the nozzle is at the correct depth Once the correct depth is achieved remove the rags and blow out the port with compressed air Put clean rags back in the port and move on to the next port repeating the procedure 4 Selectthehorsepowerincrease youdesirebyviewing the chart found in the jet baggy Select the indicated jets and insert the jets into the nozzle the nozzle is marked Nitrous amp Fuel for your convenience Connect the stainless braided lines RED FOR FUEL BLUE FOR NITROUS to the nozzle and route them to solenoids Using the provided brackets mount the solenoid in a central location that allows the proper routing of the braided lines 5 Do not use Teflon tape on any nitrous system component Use Supplied NX Red Thread Sealer only No sealer is required on flare fittings sealer is r
3. to come in contact with the exhaust system or any moving parts 1 e suspension 2 Competition bikes should route a line directly from the dual outlet petcock to the inlet side of the pump using the supplied fuel line and clamps 3 For added safety and reliability a fuel pressure safety switch should be used PN 15708 The switch should be plumbed between the fuel pump and the solenoid SECTION 4 WIRING THE SYSTEM The triggering mechanism for all NX Power Sports systems is a wide open throttle micro switch Follow the wiring diagram in Illustration D In all applications always use the furnished relay this will insure adequate voltage to the solenoids and take the high amperage load off of the trigger switch ILLUSTRATION D Switched 12 Volt White Black 12 Volt to Battery Fy Optional Fuel Pressure Safety Switch Ground O NEG E uel Inlet 12 Volt Battery Ground SECTION 5 TESTING THE SYSTEM After all components have been assembled on the motorcycle and each piece has been verified that it is installed properly call the factory tech line if you have any questions it is time to test the system Reconnect the negative battery cable Be sure the nitrous bottle is turned off and there is no pressure in the supply line Now arm the system by turning the toggle switch to the ON position You should hear the fuel pump come on Blip the wide open throttle switch
4. Bottle 2 Installing the nitrous nozzles a Plumbing the fuel system 4 Testing the system 5 Tuning tips Before starting any installation steps disconnect the negative battery terminal SECTION 1 MOUNTING THE BOTTLE Accurate calibration of your system depends on the bottle temperature remaining constant The best way to ensure adequate bottle pressure is to use an NX Power Sports Bottle Heater PN 15938 Be sure the location you choose is as far away from the engine and exhaust as the supply line length will allow The bottle must be located where it is easily accessible for ease of removal and replacement Under the seat body or on the swing arm are the best positions The bottle must be mounted as shown in Illustration A ILLUSTRATION A GENERATIO TROUS NI NEXT l lt lt lt lt lt DIRECTION OF TRAVEL lt lt lt lt lt Note Position of outlet fitting SECTION 2 INSTALLING THE NOZZLE 1 Remove all parts necessary to gain access to the intake ports or allow removal of the intake manifold s Refer to the factory service manual if necessary 2 Determine the best location for the nozzle s keeping in mind the following A The nozzle must be installed between the carb s or throttle bodies and the engine the nozzle s CANNOT be in the air box B The nozzle must be installed at a 90 degree angle to the air flow through the port C You will need to be able to remove and install the braid
5. Nitrous Express Inc 5411 Seymour Hwy Wichita Falls TX 76310 tel 940 767 7694 Fax 940 687 0751 www nitrousexpress com POWER SPORTS TECH LINE 877 648 7687 THIS NITROUS SYSTEM IS AS COMPLETE AS POSSIBLE HOWEVER FOR RACING OR COMPETITION SYSTEMS A DUAL OUTLET PINGLE PETCOCK MUST BE USED CONGRATULATIONS You have purchased the most technologically advanced researched field tested state of the art nitrous system manufactured to date The most important thing to do now 1S to READ UNDERSTAND AND FOLLOW these instructions If there is some you don t understand STOP Call the factory tech department for help 1 877 648 7687 Mon Fri 9AM S5PM PST CAUTION Adding a NX Nitrous system to your Power Sport machine is a job best handled by a professional mechanic with nitrous oxide installation experience Nitrous Express Inc urges you to seek professional help on all installation procedures Absolutely do not mix any other brand components of any kind with your NX system Using non compatable parts or accessories will void your warranty and could be dangerous or even fatal Nitrous Express Inc instructions are as complete as possible however every possibility cannot be covered in this instruction sheet if you have any problem or question STOP and call the NX tech line for help 877 648 7687 The installation procedures are divided into five sections please pay particular attention to each one l Mounting the
6. e nitrous system in the ON or ARMED mode for prolonged periods Non war ranty pump damage will result TUNING TIPS Nitrous oxide works well with all applications 4 cycle 2 cycle diesel and rotary engines Each one has individual tuning characteristics and these tips apply generally to each one Nitrous oxide is referred to as a LIQUID SUPERCHARGER THE BIGGEST ENEMY OF ALL SUPERCHARGED ENGINE IS DETONATION Detonation can be caused by many things lean fuel mixture rich fuel mixtures inadequate octane fuel too much ignition timing not enough ignition timing or lugging the engine just to mention a few l Your motorcycle engine should be tuned to its maximum power prior to nitrous use 2 Your ignition system should be at its maximum A stock ignition will be adequate on most street systems but for competition use you must have the very best available ignition components 3 The stock spark plugs on your bike are too hot to be used with nitrous Usually 2 steps colder will be about right On competition systems use the coldest plug available Do not use platinum tipped spark plugs the spark kernel is to small for nitrous usage and cannot ignite the mixture at the cylinder pressures that nitrous creates Since manufacturers specifications on the plugs vary from make and model call the tech line to find the right plug for your application 4 The NX system is so advanced that huge amounts of timing
7. ed hoses to the jet fittings on the nozzle D The nozzle s can be installed in the rubber boot between the carb s and the engine if the boot has enough space between the clamps E The nozzle s must be aimed to spray the nitrous and fuel into the engine not against the side or wall of the port Exception On single nozzle installation in V twins the nozzle is aimed toward the center of the manifold see Illustration B ILLUSTRATION B 3 At A sd J d 4 r Air Flow wees lt through ppm Carb Da STs F On multiple cylinder installations the nozzle locations only need to be similar they do not have be exactly all the same This will allow for clearance around cam chain tensioners water outlets etc see Illustration C 3 Once the appropriate location is determined drill a 3 16 pilot hole to verify the location Then drill the hole to 1 2 If the nozzle is to be installed in the rubber intake you do not need to tap the hole simply thread the nozzle into the hole and seal with a RTV type sealer If you are installing the nozzle in the cylinder head make sure the cylinder you are working on is at TOP DEAD CENTER check with service manual for any questions then place a rag or rags in the port to prevent debris from entering the cylinder if the rags are coated with grease they will get almost all the fillings out of the port Carefully start the 1 16 npt tap NOT INCLUDED IN THE SYSTEM
8. equired on pipe style threads ILLUSTRATION C SECTION 3 PLUMBING THE FUEL SYSTEM This is the most important section involved in the system installation In all cases an adequate fuel supply must be furnished to the fuel pump On a street system a stock petcock is usually adequate On a competition system a Pingle dual outlet petcock is required On all fuel injected applications you must drill and tap the fuel tank for your fuel supply Do not T off of the high pressure line leading to the fuel injectors This system is designed to be used with a Nitrous Ex press fuel pump PN 15005 No fuel pressure regulator is required however if a high volume aftermarket pump is used a regulator is required Fuel filters are optional however the user must verify fuel purity l Street systems are furnished with a T fitting that may be used to splice into the fuel line supplying the carburetor Route a rubber fuel line from this T fitting or fuel outlet to the inlet side of the fuel pump using the supplied hose and clamps Run a line from the outlet side of the pump to the fuel solenoid using the supplied hose and clamps The inlet side of the pump is the metal end the outlet is the black plastic side with the electrical connections Use extreme caution when cutting and installing the rubber line to prevent rubber debris from fouling the fuel solenoid or clogging the fuel jets Do not allow either of these lines
9. on systems and a plus on the street systems as well A purge valve is worth about a tenth of a second on a 1 4 mile pass The correct purging procedures of drag racing is 1 Complete your burnout 2 Light the pre stage bulb 3 Push the purge button three times in one second increments 4 Stage immediately go fast 11 If there 1s a question about the purity of your nitrous supply a filter PN 15607 should be used when refilling your nitrous bottle Contaminated nitrous will cause serious damage to your system components 12 Periodically check all fittings connections and mounting bolts for leaks and tightness 13 Always turn the nitrous bottle off when not in use even between runs 14 Always start with the lowest power setting in your system Start out small and work your way up NX systems produce more REAL horsepower than any other on the market today iD If you run a 50 HP system you must run the highest motor octane racing fuel available Here are some tips to help you choose fuel for you bike A The relevant number to look at when choosing a racing fuel is the MOTOR octane number or MON the research octane number is not a reliable gauge of fuel octane level B Never store your fuel in a vented container never store your fuel in white fuel jugs or in direct sunlight If you must use plastic use only dark colors Sunlight will oxidize the lead out of racing fuel Lead is what makes it high oc
10. retard are not required If adequate octane fuel is used only small amount of timing retard may be needed Excessive timing retard in an internal combustion engine causes increased cylinder temperatures engine overheating and over rich fuel conditions 5 The fuel system must be in top operating condition Be sure the fuel filter is clean and there are no restrictions in the fuel supply line 6 The engine should be at operating temperature before nitrous is used T Never LUG the engine while using nitrous Use the system at wide open throttle only Never engage the system below 3 000 RPMs IF you do any of the above a serious BACKFIRE condition may result in serious engine damage or physical injury 8 Do not attempt to drill or alter the jets or serious engine damage will result These items are engineered to their maximum capability Any modifications you can make will decrease power and hurt engine parts 9 All NX systems are designed to operate at 1 050 PSI bottle pressure This is extremely important and cannot be stressed enough If the pressure is below this the system will be rich if it is above this it will be lean The bottle pressure can be monitored easily with our bottle pressure gauge PN 15509 In cool weather a bottle heater is required PN 15938 In extremely hot weather a wet towel or chamois may be placed over the bottle to reduce pressure 10 A purge valve PN 15600 is a must on all competiti
11. tane A steel JERRY can 1s the best C Do not leave your racing fuel stored in the motorcycle tank Keep it in a sealed airtight container off the floor Instant engine damage will be the result The specific gravity of avgas is very light and it is not formulated to operate in non aircraft engines E Never buy racing fuel from a vented container or from an underground tank Buy from a sealed drum only IN CONCLUSION This instruction sheet and power tuning tips are valid for NX systems only If you have a kit from another manufacturer this information will not help you The instruction sheet from another manufacturer s kit will not help you with the NX system If you need help call your dealer or the factory tech line DO NOT MIX ANY COMPONENTS FROM ANY OTHER MANUFACTURER THIS WILL VOID ALL If you follow the foregoing suggestions your NX system will operate trouble free Got a problem Call the factory tech line 9AM to SPM PST 877 648 7687 NITROUS EXPRESS INC 5411 SEYMOUR HWY WICHITA FALLS TX 76310 877 648 7687 TEL 562 422 2439 FAX www nitrousexpress com
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