50cc gas motor bike

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1. That pretty much sums it up. Motorcycles have an engine mounted in the middle of the frame with a gas tank above it. The rider sits astride the engine with the gas tank right in front of them. Motorcycle wheels are also typically larger (over 16″ diameter) than those on a scooter. Another major difference is that the engine of a motorcycle is attached to the frame, while on a scooter it is usually part of the rear suspension. So when a motorcycle rear wheel goes up and down, the engine remains stationary, while when the rear wheel of a motor scooter goes up and down, the whole engine and transmission moves up and down with it.

   These days, 99% of scooters have a “twist and go” automatic (CVT) transmission, which means you don’t have a clutch to control and you don’t have to change gears, while 99% or motorcycles have a manual clutch and you have to shift gears manually (with your left foot). This also means that on 99% of motor scooters you apply the rear brake with your left hand, while on 99% of motorcycles you apply the rear brake with your right foot. While there are still a few manual scooters and there are a few automatic motorcycles, both are very much the exception rather than the rule.

   These differences result in a motorcycle usually having better acceleration high speed handling characteristics, but a motor scooter is often more maneuverable at low speed and is easier to ride, especially for novices.

   Scooters usually have a small engine, from 50cc to 250cc, though there are 400cc and even 800cc scooters, so engine size doesn’t define them. While most are limited in speed, scooters with a larger engine can exceed 100mph and cruise easily at freeway speeds, so speed isn’t a defining characteristic either.

   So what is a moped then? That’s a little trickier, but the working definition for most DMVs is a motorized two wheeled vehicle with an engine of less than 50cc capacity. It used to be that a moped was a Motorized pedal cycle, i.e. basically a bicycle with a small engine, but some jurisdictions don’t require pedals. Again we can also look at Wikipedia for a definition:
   Mopeds are a class of low-powered (under 50cc displacement) motorized vehicle, generally two-wheeled. A Moped is driven in an upright position with the rider’s back perpendicular to the seat . From a practical point of view, in most jurisdictions mopeds can be ridden without requiring a motorcycle license (a car license is sufficient). They may be speed limited by design, but even if they aren’t, the small engine size usually limits then to a top speed under 40mph (maybe 45mph downhill with a tail wind). In the United States the definition and regulation of mopeds differs from state to state. Again calling on Wikipedia:

   Legal terms and definitions of low-powered cycles vary from state to state and may or may not include “Moped,” “Motorcycle,” “Motorized Bicycle,” “Motorscooter,” “Goped,” “Motor-Driven Cycle,” and or others. A moped’s speed generally may not exceed 30 mph (48 km/h) on level ground, even if it is capable of going faster. In a few states this number is 20 or 25 mph (32 or 40 km/h), and in most states, the maximum engine capacity is 50 cc. However, Kansas (“Motorized Bicycle” K.S.A. 8-126, 8-1439a) allows up to 130 cc[13]. Some states, like California, require pedals, while others do not. Virginia allows mopeds to operate at up to 35 mph (56 km/h). Some states, like North Carolina, require there to be no external gear-shifting mechanism.

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   The fact is, scooters are like any other piece of sporting equipment; they can be used and used safely, but you need to take proper precautions. Here are a few easily digestible guidelines for scooter safety that everyone who uses scooters should observe:

   1. Always wear safety gear: Helmet, Elbow Pads and Knee Pads. This is a small investment, but necessary- only about $30- can instantly eliminate almost two-thirds of possible scooter accidents. In many states, provinces and regions throughout the world, these are required by law!

   2. Always ride your scooter during the daytime. When it is dark out, there are just too many things that can easily upset your balance and cause you to fall. Therefore, no one should ride scooters at night.

   3. Scooters are not toys! Children who are under eight should always be supervised when using scooters. Almost a third of all scooter-related injuries and accidents involve children under the age of eight. As everyone knows, scooters are capable of traveling very quickly, and children that age do not always have the judgment or coordination to handle these high speeds.

   4. Always ride your scooter Off-Road & Stay away from all cars and any other vehicles -Cars and scooters don’t mix, especially for younger riders. Smooth, paved surfaces are best – avoid bumpy, uneven, wet or rocky ones. Schoolyards, parks, paved trails are examples of safe places to “scoot”! Stay away from Sand, Gravel, Water and Dirt ¨C Try to keep your scooter on smooth surfaces.

   5. Always observe the basic rules of the road anywhere you use scooters. As scooters can travel as fast as many other types of vehicles, motorized and non-motorized, they too must observe the rules of the road. These include:

   -Stop at every stop sign. Look left, right, and left again before proceeding.
   -Stop at the end of the driveway. Look left, right, and left before entering the street.
   -Use proper hand signals.
   -Obey traffic signs and signals

   Not Recommended

   -Avoid jumping off of curves.
   -Too much weight on scooter can bend or break the frame.
   -DO NOT ride on a flat tire. This is dangerous and will damage the tire and possibly the wheel as well.

   Mechanical Tips

   Check all joints, hinges and quick releases to ensure the scooter is properly assembled. Stop using the product immediately if any joint, hinge, or quick release becomes loose. Correct the looseness prior to resuming the ride. Maintain proper air pressure in the tires. Low air pressure induces extra rolling friction, reduces ground clearance, and wears the tires quicker. If the brake lever touches the handlebar grip, stop use of the product until the lever is adjusted.

   Comment by master — 05/12/2010 @ 3:15 pm

2. What the carburetor does is regulate the amount of fuel and air which are supplied to the engine. To go faster you need more fuel and more air and they must be in the right proportion. The fuel also has to be atomized as much as possible (i.e. be supplied in tiny droplets). The carburetor controls all these functions and generally does it quite well. Without removing and disassembling the carburetor, there are only two adjustments you can make, but these should take care of most minor problems. The first is the adjustment of the idle speed.

   Above is a picture of a typical GY6 engine carburetor and the view is that from the right side of most engine configurations on 150cc Chinese scooters. There’s a small spring loaded screw which adjusts the idle speed. It’s right next to the throttle control which is connected to the twist grip on the right handlebar. On most 150cc scooters, idle speed should be around 1500rpm when the engine is fully warmed up. Don’t make adjustments when the engine is cold. Take a 5 or 10 minute ride first. When the engine is cold the automatic choke is in operation and that can change the idle speed. If you have a tachometer, setting the speed is easy. If you don’t, you want to set the speed to a low idle. Fast enough so that the engine doesn’t stumble or stall, but slow enough that the clutch doesn’t engage and try to move the scooter forward. On most scooters from 50cc to 250cc, this will be somewhere in the 1500-2000rpm region.

   The other adjustment you can make is to the low speed fuel/air (“mixture”) ratio. This is done on most scooters using a screw adjustment on the other side of the carburetor as shown below.

   This screw changes the air to fuel ratio at low speeds. It shouldn’t need much adjustment, but the way to do it is to turn the screw very slightly (1/8th turn) and see if the idle speed goes up or down. If it goes down, turn the screw back 1/8th turn to where it started, then 1/8 turn in the other direction and see if the idle speed goes up or down. If it goes down, turn it back to where you started since you didn’t need any adjustment! If the idle speed goes up, continue turning the screw in 1/8th turn steps until the idle speed is at a maximum. If it starts to go down, turn it back to get the maximum idle speed.

   You may need to go back to the idle speed screw to lower the idle speed if it’s now too fast. So the basic procedure is to set the fuel/air mixture to give you the fastest idle, then use the idle speed adjustment to set the speed to the lowest rpm that gives you smooth running.

   If the scooter idles well and runs fine at low speed, but has problems at high speed, the problem may lie inside the carburetor with the main jet. The fuel/air ratio at higher speeds is set by the jets inside the carburetor and to get at them the carburetor has to be removed and disassembled. This can be a tricky job as the parts are small and delicate. The good news is that these carburetors are quite cheap. You can get a new one for $60-$80, so if you can’t make your scooter run smoothly and you don’t like the idea of taking the carburetor apart, you can always replace it!

   Scooter Registration?

   If you’ve bough a fully assembled and tested scooter from a local dealer than they should take care of all the required registration. All you have to do is pay the dealer and your fully registered and inspected scooter should be delivered to you.

   However if you’ve bought a scooter through our website you’ll have some work to do. In most of the states you’ll need a manufacturer’s statement of origin (MSO), which the dealer should provide. This is a certificate from the scooter manufacturer which has the make, model and VIN (Vehicle Identification Number) on it and is proof that the scooter meets all applicable DOT and EPA standards for registration in the USA, and in particular for the state you are trying to register it in. You also need proof of insurance, the dealer invoice and a valid driver’s license. Then you simply drive to your local DMV office, wait in line for 20 minutes, get the forms, fill them out, wait in line for another 30 minutes and if all your documents are in order you get a title and your motorcycle plates (moped plates if your scooter is under 50cc).

   Then you have to take your scooter to an inspection station along with a yellow card which the DMV office provided, proof of insurance and a valid drivers license (with motorcycle endorsement if the scooter is over 50cc) and the inspection station will give you an inspection sticker good for 4 years. They may also check that your helmet meets local requirements (DOT certification etc).

   It is very simple to title and register your new moped, scooter or motorcycle. When buying a scooter online, you should expect to receive the following documents:

   A Certificate of Origin (MCO), a.k.a. MSO (Manufacturer Statement of Origin.)
   A Bill of Sale.
   The certificate of origin is an official title document that releases the scooter from the importer to the dealer. The dealer released the scooter to you. All documents for every street legal vehicle are usually sent in the mail 2 to 4 days after the scooter is shipped. Please note, we do not mail your MSO and Bill of Sales alone with your scooter, there is a possibility of receiving your registration information before you even receive your vehicle, since the trucking company usually has longer transit time frame compares to first class mail service. We request each customer to confirm your VIN by email if you don?ˉt receive your registration documentations 7 business days after receiving your street legal scooter or motorcycle. To confirm: simply send an email to mso@scooterdepot.us include your order number and VIN in the subject or the body. We will have one of our professional title representatives to process your title request immediately. MSO request generally requires 3-5 business days to process, and it is FREE of charge!

   Vehicle Identification Number is usually located on the front of the steering stem or at the bottom of the floor mat, where you would place your foot. The VIN number consists of a 17 digit alpha numeric number, and usually has the engine number located on the same plate. The plated steel mount can be either black or steel.

   Each MSO Title certificate will be accompanied by a Bill of Sale and Invoice for registration purposes. If your state requires your MSO to be notarized, please indicate on your MSO request form. There is a $25.00 fee for each notary. We offer overnight service for an additional $55.00. Please note: overnight service only guarantees we mail your documents via overnight service. We do not guarantee your MSO will be prepared and processed overnight. There is $20.00 fee for each replacement MSO.

   Comment by master — 05/12/2010 @ 3:15 pm

3. Is there any moped / scooter / motorized bike that can be legally driven on the road (observing all the rules and laws of a bicycle) without any driver’s license? If you had a 40cc scooter / motorized bike with pedals (for example); could you drive / ride this on the road without a license? My question is specific to the state of GA if that matters. in addition to posting a reply; feel free to email me directly at: mccann205@comcast.net. Thanks…

   Comment by Gene — 10/27/2010 @ 10:20 am

4. A vibrant hunger for movement, not a standard detail with me, had taken possession of me despite myself.

   Comment by 9000 btu portable air conditioner — 02/02/2012 @ 3:40 am

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