Checking a used Gas Scooter

By: Robert Thomson

Fixing your scooter.

If you own a scooter and cannot get it to run, you know how absolutely frustrating this can be. If you find you are in this status keep with us for valuable tips and insight.

Check to see whether your exhaust pipe is blocked. Two stroke scooters are especially susceptible to this hindrance. Over time, carbon and the unburned fuel and oil mixture build up and clog the exhaust pipe. Blockages in the exhaust pipe will adversely impact the performance of your scooter, or trigger it to not run at all. It is not simple to say whether the exhaust pipe is congested. Removing it and starting the scooter is the easiest way to tell if it is blocked or not. The sound may be a little loud - two strokes may resonate like a chain saw. If the scooter runs now that the exhaust is detached, you know where the hindrance will be found.

Think back to when you drained the old gas. How old was it? Did the petrol have an old smell? petrol in a scooter left idle for a year or so will transform into a varnish-like substance. Then you have a lot of cleaning to do. The gas will regularly dissolve, imparting a sludgy, substance in the gas tank,petcock, fuel line and carb that is parallel to molassas. Completely flush the gas tank and lines with new gas.

If the gas tank is not too putrefied or grimy, it may be ok to basically flush it out. Now put in some new gas. However, if you aren't positive how old the petrol is, (even if it smells all right), drain the gas reservoir, carburetor float bowl, and fuel lines,and refill with fresh petrol. Some time ago I worked on an Hond 50 with quite clean-smelling gas. I could make it go with starting fluid, but I couldn't do it with existing gas. At last I had to drain out all the old gas and refill it up with new gas. After that, the scooter fired at once and ran well.

Take the fuel and vacuum tubes from the petcock to the carb. Put an appropriate receptacle beneath the fuel line, and draw air on the vacuum line to the petcock, (if equipped with one), and witness how well the petrol flows. There should be sufficient flow. A dribble is not good enough. If you are able to get this surge, then you are alright. Flush the system by running a minimum of a pint of gas through it. If there is still no flow, it probably means your petcock is blocked. You will need to take it out and take it to pieces to clean it. Return it with attention on the gas tank or the gas might leak. start the scooter after repairing everything. The gas desires a few seconds of cranking to make its way from the gas tank to the carb. If you are lucky, it may start up right away.

If you still have troubles at this point try the following. put in a new spark plug, particularly if it is a two stroke engine. The air filter should be cleaned or replaced when essential. The carb, air cleaner, and exhaust system should all be inspected and adjusted to work together. If you change any of these items aimlessly or haphazardly, most scooters will not run suitably.

Check all the connections again. After that, crank the engine for 10-15 seconds. Is it activated? Do you hear any popping sounds, as though the engine is attempting to run? Do not request the gas while cranking; many scooters do not start when you do this. In most cases, for Honda scooters if you utilize thegas just when the engine catches, they seem to start easier. near all Yamaha scooters have to idle up awhile before you can use the gas. If it seems the scooter is catching, but still will not start, about fifteen seconds and try again.

If the speedometer is not running, it's generally because the speedometer cable is jammed. check it about 5-6 inches from its connection at the front wheel. This is generally where it breaks because of the twist in the cable and being vulnerable to the weather such as water and dirt close to the front wheel. New speedometer cables are inexpensive (generally under $20) and you can exchange them easily.

Now inspect the center stand of your scooter. Getting it parked on this center stand can be demanding except if you rehearse. It's all in the method. Even the center stand of a large motorcycle can be deployed by a small person if correct system is followed.

Now you are ready to ride and may want to know how to increase the top speed of your scooter. This question is asked most regularly about the 50cc scooters, but also can be asked about the larger scooters as well. The real queston that is of most importance is, how much money are you disposed to consume? If you own a 50cc, and you wish the top rate to go from 25 mph to 50 mph, you might want to consider simply ofbuying a superior scooter. As you intensify the acceleration, you will note that the brakes, suspension, and frame are not up to par. It is entirely expensive to exchange all the parts. If you easily want a little better speed, modifications to your 50cc scooter's carburetor, exhaust pipe, and the variator may result in bigger performance. possibly you can get a big bore kit and this will promote the engine displacement from 50cc to approximately 70cc.

Generally, adding a performance racing clutch or performance variator is the easiest thing to do. They may offer you with better acceleration and/or advanced velocity.

You can also obtain a new performance carb, a new exhaust pipe or both. These two components (and probably the air box) would need to be changed together for optimal performance. chiefly, the engine is an air pump. You get more strength when you move more air through the engine. By adding a larger carburetor, you will draw more air and more fuel into the engine. By not varying the air box, you are restricting the total of added air. You also check the total of air out of the engine if you neglect to exchange the exhaust pipe with one that is also superior or freer flowing. Additionally, also varying the carburetor changes the fuel to air ratio inside the engine. The changes that you make may or may not be liked by your engine. For example, the new carb should give you more top end power, but may lead to starting troubles or the performance might be good at low RPMs but modest at faster ones. It can be hard work to tune your scooter to get the best performance. attempt to get a kit that includes a carb, air box and an exhaust pipe that are all planned for your scooter. It will make things much less obstinate. lastly, use the big bore kit. This will intensify the torque and acceleration, but will not increase the top speed unless gearing modifications are made. There aren't very many performance parts for large scooters readily available in the United States (except for certain new scooters).

Still want more performance? You can try some of the additional tweaks to additionally improve your gas scooter. You can try to get another drive belt. This will give you a little help on the mph; new belts ride higher in the pulleys. You can also correct your roller weights (you can use heavier rollers for more top speed), adjust your valves, install a new air filter, and keep your tires pumped suitably.

Next test your idle. Is it too high? This can be caused by a throttle cable that is too firm or not routed suitably. It could also specify that you have to twist the idle screw on the carb the reverse direction ~1/4 turn. A vacuum leak may also be a basis for a high idle. The rubber manifold connecting the carb and the cylinder head may break after a while. endeavor to start the engine and spray some water around the carb, manifold and vacuum hoses. If there is a decrease in the idle, it means that there is a vacuum leak somewhere.

Finally, one last thing to ponder is elevation. This may not transpire very frequently, but it's good to know well. Your scooter will have trouble receiving enough air at heights above 4000 feet. You will have to place a minor main jet in the carburetor. A good statute to follow is to decrease the size of the main jet by about 10 percent, and then see if that helps performance.

Hopefully these tips will help you enjoy your scooter for years to come. Don't give up, contact us if you have further questions.

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Tiger Motion Inc. DBA Neo Scooters is a team found at Gas Scooters, electric Scooters, Electric Mopeds. You can find more information at www.neoscooters.com/large_mopeds.asp. Visit Checking a used Gas Scooter.

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