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Maintenance for Gas Scooters & Motorcycles
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Your new scooter or mini bike will last longer and perform better if you maintain it using the below information.

 
Maintenance is crucial to getting the most out of your scooters or motorcycles. The following instructions are for Razorback models however most of the principals are universal and can be utilized on all makes of gas scooters and motorcycles. 
 
Furthermore we remind gas scooters and motorcycles enthusiasts that although motorized scooters are toys, they can be dangerous if not respected. Please follow safe riding practices and ALWAYS wear protective gear.
 

Gas Scooters Fuel and Oil mixture Information
Your gas scooters use 2-stroke motor for power. A two-stroke gas motor was chosen for it's excellent power to weight ratio. A two-stroke gas motor does not require that you ever change the oil, however it does require that you mix quality grade 2-stroke oil with the gas prior to filling your scooters gas tank. This ensures that your gas motor will remain lubricated and give you reliable service.

To accomplish this you can buy 2-stroke oil at almost any auto parts store or hardware store. The oil and gas are the mixed together in a separate container before filling gas scooters. The mixture should be done at a 32:1 ratio. Mixing the gas and oil too lean can cause the gas motor to run too hot resulting in permanent gas motor damage. Mixing the gas and oil too rich will cause decreased performance and result in a fouled spark plug. By strictly following the 32:1 ratio you can be assured maximum performance.

Gas Powered Scooters Spark Plug Maintenance and Information
The spark plug is a crucial and vulnerable part on your fasst two-stroke motor. Your spark plug can be located on the top of the motor under the protective rubber boot. Motorized scooters come with a tool kit containing a spark plug wrench for easy removal.
 
The spark plug must be clean, and must be replaced promptly when signs of wear begin to show. The
condition of the spark plug can tell you a lot about how your motor is running. The spark plug should be a light brown or golden color. If the electrode is white, that can be a sign that the scooter is running too hot. This can be a result of either running too lean (See the Carburetor section), or that the fuel and oil mixture is too lean (See the Fuel and Oil mixture section). If you are running too rich then your spark plug may be black, covered with gas, oil, or carbon.

Another common problem is that the spark plug gets clogged up with carbon and/or oil and "fouls". This should be checked by assuring the electrode has a clean gap of . 023 in. If you are having a problem with fouling, just be sure that the gap, as shown to the right, is clean and free of obstruction, A small piece of fine grit sandpaper usually works well for this. New spark plugs can be purchased from us on our parts page, or at almost any local hardware or scooters parts store.

Gas Powered Scooters Air Filter Maintenance and Information
The air filter is used to clean the air going into the gas motor. Periodic cleaning of this filter is recommended to protect your motor against the damaging effects of dirt and abrasive particulates. Your air filter can be located on the front of the gas motor and the protective cover can be removed with one screw.

When the protective cover is removed the air filter is revealed. You can also see the small workings of the choke and butterfly valve.

The filter should be free from dirt and grease and appear clean. If there are contaminants on the filter it can be cleaned in a container of gas. Allow the filter to dry before re-installing it.

Gas Powered Scooters Chain Maintenance and Information
The chain on your gas powered scooters should be lubricated before every ride. The chain should also be checked for tightness on a regular basis. If the chain is too loose a popping sound can be heard and the gas powered scooter will jerk under acceleration, or the chain will just jump off altogether. If the chain is too tight it will be noisy and bind, this can be felt by pushing the scooter with the motor off.

On the 22.5cc gas powered scooters there is a chain driven gear reduction, which must also be lubricated before each ride. This gear reduction chain does is not adjustable and must be replaced when an unacceptable amount of slack is present.

Access for lubrication can easily be obtained through a small lubrication hole on the top of the chain guard.

When making any adjustments to the chain it is very important to ensure the chain and sprockets are perfectly aligned. If they are not the chain will most certainly come off. To properly align you must get your eye level with the chain. Make sure that all components are aligned before tightening the fasteners.

The rear tire held on by an axle and two locking eyebolts. To adjust, loosen the axle bolts and the locking nuts. Use the eyebolt nuts to tighten and align the rear scooter tire. Once the chain is snug and straight tighten the axel nuts. Finally cinch down the locking nuts on the eyebolts.

Sometimes it is difficult to get the chain straight due to the fact that the motor and rear wheel sprocket aren't aligned. If this occurs simply turn the gas powered scooter on its side, loosen the three motor mounting bolts, and the motor can be easily slid to either side to compensate for any misalignment.

Tires Maintenance and Information
The scooters tires on your 24cc gas powered scooters are pneumatic (air filled) tires. The tires require 85psi and can be filled via the valve on the side of the tire. It is very important that the tires have the proper inflation. Although the gas powered scooters have been prepared to ride once out of the box, due to long shipping distances and elevation changes we have yet to see one gas powered scooter with the correct pressure right out of the box. Low tire pressure will make the scooter feel sluggish and a loss of power will be felt. Remember:

85psi

Other gas powered scooters may be different, Please ensure to look at the side of the tire for recommended PSI.

You will notice that the valve on the 22.5cc front tire is turned to the side a little and is not straight out. This is intentional to keep the valve from hitting the frame of the scooters as the wheel turns. If the valve is not angled you will hear a clicking sound every time the tire makes a rotation. To cure this, let all of the air out of the tire. Hold the tire with one hand and the rim with the other. Twist the tire one-way and the rim the other. This will cause the tire to "slip" on the rim and make the valve turn to one side. Once this is achieved refill the tire to 85psi.

Other gas powered scooters may be different, please ensure to look at the side of the tire for recommended PSI.

Throttle Maintenance and Information
There are two main types of gas powered scooters throttles. One is a twist type, and the other is a hand throttle. Although the throttles are different in operation, they are essentially mechanically the same. When the rider applies the throttle, a cable carries this motion down to the motor. For continued smooth operation it is important to keep this cable clean and free of obstructions.

Should the throttle begin to feel loose and sloppy, the slack can be adjusted on the cable at the handlebars. Simply loosen the lock nut and adjust the cable tension via the adjustable screw. Once the desired tension is achieved retighten the lock nut.

Gas Powered Scooters Brakes Maintenance and Information
The brake on your 24cc or 36cc gas powered scooters is a cable actuated drum brake. This style brake has proven well over time and is very simple to maintain. The rear brake has two main adjustments. The easier of the two is the adjustment on the handbrake itself. This adjustment has two simple steps. To change the tension on the cable merely back off the locking nut and screw the adjustment screw in or out accordingly. Once the desired tension is achieved re tighten the locking nut.

Further adjustment can be made at the brake drum itself. This task is easiest with two people. First, loosen the adjustment at the handlebar hand brake and screw it all the way in. Next go to the rear brake and loosen the Cable Clamp. Once loose, pull back on the cable and have the second person push forward on the brake cable lever (push hard, you are pushing against a tight spring action). While pushing the lever forward and pulling the cable back, quickly tighten the cable clamp. Additional minor adjustments can be made where the cable meets the rear brake.

Gas Powered Scooters Carburetor Maintenance and Information
The carburetor has many adjustments on it and it is recommended that experienced persons make these adjustments only, however we will point out the major points. The carburetor is responsible for pumping the fuel and mixing it with the air at a precise measurement. The carburetor does this with very small diaphragms, orifices and ports, which are easily clogged by contaminants. This is why is extremely important that you use only clean new fuel mixed with 2-cycle oil in your gas powered scooters.

Gas Powered Scooters Choke Maintenance and Information
First, the choke. There is a choke lever on the side of the motor as pictured on the right. Some gas powered scooters have "off" written at the top, and "on" written at the bottom. This is incorrect and I don't know how they confused the two. The correct position of the choke is:

When the choke is up - the choke is on
When the choke is down - the choke is off

Gas Powered Scooters Primer Maintenance and Information
When the gas powered scooters are brand new, been run out of gas, been sitting for a long period or is very cold, it may be necessary to prime the carburetor before attempting to start it. This is accomplished with the primer pump bowl located at the bottom of the carburetor. Simply press and release this pump several times until gas can be seen flowing through the clear gas return line to the fuel tank. This will help start the gas powered scooters under the aforementioned conditions, however if this is done once the gas powered scooters have warmed up it may induce flooding.

Gas Powered Scooters Jet Maintenance and Information
Due to the fact that the carburetor mixes the fuel and air at an exact ratio, elevation, temperature, humidity and other weather related variables could have a detrimental effect on your gas powered scooters performance. The manufacturer pre-adjusts your gas powered scooters at near sea level and depending where you live your scooter may require adjustment. The adjustment screw, or "jet", can be located in the access hole just to the right of the choke lever. Turning the screw clockwise will lean the mixture while turning the screw counterclockwise will richen the mixture. It is recommended that the jet be adjusted no more then 1/4 turn at a time. Test the gas powered scooters between turns and once peak performance we achieved we recommend richening the adjustment a 1/8 turn. This is due to the fact that the leaner the motor is run, the hotter it will get, and this can induce a possible seizure of the motor from overheating.

Gas Powered Scooters Idle Maintenance and Information
If the gas powered scooters will not idle or idles too fast, an adjustment screw is provided next to the choke. Turning this screw clockwise will increase the idle speed. Turning the screw counterclockwise will decrease the idle speed. Remember that an idle speed that is too fast can be dangerous.

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Some minor assembly required. Free shipping available to Continental US only. Scooters, motorcycles, skateboards, and go karts usually leave warehouse within 3 business days but may take up to 14 depending on availability. PLEASE READ OUR SAFETY INFO.  All riders must wear protective equipment at all times including helmet, knee and elbow pads, and glasses. We are not responsible for riders that don't obey the law, drive irresponsibly, or don't wear safety equipment. Product may not be exactly as described as models are improved and upgraded often. Contact us at admin@extremely-cheap-gas-powered-scooters.com. Copyright 2003 - 2007