50cc chinese motor bikes

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1. Now you can look for “assembly instructions”, which with the average Chinese scooter will be one sheet of paper which says something like “attach the rear view mirrors, install the battery, etc.”. You may have to use some ingenuity to figure out how to do all this, but it shouldn’t be beyond the capabilities of any amateur home mechanic. It may help if you have a decent socket set, screwdriver set and set of metric wrenches since the supplied “tool kit” usually leaves much to be desired.

   Batteries are typically shipped “dry” with the acid in a separate container. You have to add the acid to the battery and leave it for 30 minutes of so before using it. After this it shouldn’t need to be charged to start the scooter.

   Once you have all the parts attached (and that will include at least mirrors, seat, rear carrier, battery and floor mats), and you’ve waited about 30 minutes after adding acid to the battery, you’ll be ready to start the scooter.

   If you just put fuel in the tank, you may have to crank it quite a few times before it starts since the fuel has to get to the carburetor and fill the float chamber before gas gets to the engine. You can prime the carburetor by disconnecting the fuel hose from the vacuum valve and connecting it directly to a small funnel and adding a little gas, then reconnecting the fuel line to the valve and adding fuel to the tank. However if you don’t know what you’re doing, just try to follow whatever instruction came with the scooter. Use premium gas. Most scooters seem to be setup to run on 91 octane fuel.

   The final point of assembly is to check everything. Check the tire pressures, check that every bolt and nut you can see is tight, especially the ones holding the exhaust and muffler – and the wheels! Look around for lose wires or rubber hoses that don’t seem to be attached to anything.

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

2. But what if you are located outside of California, we have a few suggestions for you. You can try contacting local motorcycle (or better still, scooter) repair shops. If they are not very enthusiastic about working on a Chinese scooter, no worry! Have them contact our tech support department directly. We will make sure they will have the easy access to our spare parts and the technical support they need. Remember, we are the only company who actually carries all common parts in stock.

   150cc engine and transmission as used in many Chinese scooters

   You might also get some help from a lawn mower repair shop. They are used to working on small engines and the engine in a scooter isn’t all that different from the engine in a lawn mower. You can also try snowmobile and ATV repair shops.

   CVT (transmission) belt. Price ~ $40. Belt life anywhere from 2500 to 10,000 miles

   It’s not a bad idea to keep a few spares (such as a spare spark plug and CVT belt) on hand, just in case you need them (and eventually, you will). It’s a good idea to remove the CVT cover on your new scooter and read the number on the belt BEFORE you need to change it. Belt sizes vary, even on the same nominal scooter “model” and by the time it fails, the size markings may have worn off! The belt size is usually three numbers such as “835-20-30″. This would mean the belt is 835mm long, 20mm wide and has a cross section with a 30?? bevel angle.

   The best way to avoid needing repairs is regular maintenance, which means changing the oil regularly, changing the fuel filter and spark plug at the proper intervals, checking the CVT belt and air filter, checking the tires and going around the scooter at least once a month and making sure that all the bolts are tight (especially the bolts holding the muffler on). Use the recommended grade of gas (usually higher than 90 octane for most Chinese scooters) and add fuel stabilizer if the scooter isn’t going to be driven for a while.

   Though you won’t find individual repair manuals for every different Chinese scooter, they are all pretty similar and many use the same engines and transmission parts.. There are a couple of books which may help. The Haynes guide is probably the best general reference for the repair of “generic” (i.e. Chinese) scooters. The “Complete Idiot’s Guide to Motor Scooters” is pretty basic and really doesn’t give much detailed information, though it’s not a bad introduction to scooters if you really know nothing at all about them.

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

3. Is the spark plug dirty? Clean or replace it if its dirty
   Make sure the carburetor and the intake manifold are tightly secured to the engine.
   Check the gasket between the carburetor and intake manifold. Sometimes the gasket is bad and caused leak. Solution: replace new gasket or just toss the bad gasket away and screw carburetor back. Try to start again.
   My Scooter Bogs out When I Turn the Throttle ?

   Adjust the screw with the spring on the side of the carburetor. Clockwise to reduce gas flow and counterclockwise to allow more gas follow. Usually bogged down is caused too much gas going thru the carburetor.
   Give time for it to warm up.
   If that does not solve the problem, you need a new carburetor.
   My Scooter is Leaking Oil From the Carburetor & Muffler Areas

   Check the gasket between the carburetor and intake manifold. It might be bad or maybe the carburetor came loose due to engine vibration.
   My Electric Start Wont Work?

   Make sure the squeeze the left handle brake while pressing the electric button.
   When the electric start make clicking noise, it means your battery is weak
   Check the fuse.
   Is your key switch good?
   Is the electric start giving out a burnt smell? You might have a burnt out electric start. Sometimes there is no smell.
   My Engine Froze

   The cause is lack of oil getting to the piston and needle bearing areas. Certain oil cant cling on when the engine get too hot. As a result, the needle bearing fell apart inside and caused the engine to cease. You can buy a new a engine or try to rebuild it? Be sure to always maintain proper engine oil levels to help prevent this from happening.

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

4. 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.

   Once you receive these documents, you need to take them with your scooter or motorcycle to your local DMV (Department of Motor Vehicle). They will inspect the bike and compare the VIN (Vehicle Identification Number) on the paperwork to the one on the scooter. They will inspect the vehicle as well.

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

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