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1. Sunny Sports Inc. is a licensed and bonded and Authorized Motorsports dealer in state of California. We are one of the largest direct importers with over 90.000 square feet warehouse and show room.? Our mission is to provide the customer with the best quality off road motor sports vehicles and motorized scooters at the most economical prices and parts support second to none.

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

2. So you buy a scooter and something breaks. Who is going to fix it? Well. if you ve bough in person from our retail store in California.? we have access to parts. shop manuals and we will have mechanics trained to fix your scooter. All you have to do is bring them in.

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

3. If you are getting a spark and you are getting gas to the carburetor and the engine is turning over on the starter OK, it’s possible that the electrically operated automatic choke has failed. It’s supposed to operate when the engine is cold, but if it’s stuck or burned out, the mixture will be weak and the scooter probably won’t start. The automatic choke is usually a black cylindrical object attached to the carburetor with a couple of wires coming out of it as shown on the left. It’s the only electrical powered component attached to the carburetor, so it’s usually not hard to spot. If you have a voltmeter you can measure the resistance across the leads of the choke. It should be somewhere in the region of around 10 or 20 ohms. If it’s an open circuit, it’s burned out and will need to be replaced. If it seems to be OK it may be stuck, or the wiring to it may have a problem. Check to see that it’s getting voltage.

   It’s also possible that there is a problem with the carburetor and if so you may need to remove it and clean it out. If the scooter has been sitting for a few months with gas in the carburetor, the gas may have evaporated and left a sticky “gum” behind that will prevent the carburetor from working properly and which must be removed.

   If the automatic choke is OK, the starter cranks the engine, there’s gas and there’s a spark then there may be an engine problem. You need to check the cylinder compression. You need a compression tester to do this. It screws in instead of the spark plug and measures cylinder pressure. When you crank the engine you should see a reading of around 150 psi or more. If it’s 100 psi or less there’s likely and engine problem (bad valve, bad piston, failed piston rings) which will need the engine taken apart to find.

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

4. If you want a high speed machine, you would probably be better off with a motorcycle.? 250cc scooters are just about OK for freeway use and should be able to cruise at 60mph and get up to speeds of 70mph or more if pushed. We wouldn’t recommend riding anything less than a 250cc scooter on the freeway, you might want to check on our 300cc motorcycle that is listed on our website.

   What MPG Does a Scooter Get?

   This depends mostly on the engine size. The smallest engines are typically 49cc and they can give up to 90 mpg, depending on what type of riding you do and how much you weigh. Obviously if you weight 300lbs and do mostly short “stop and go” trips you’ll get a lower mileage than if you weight 100lbs and travel mostly on long trips at modest speeds. At the extreme, we’ve seen figures of 110-120 mpg for 50c scooters when the rider was trying their best to drive as economically as possible.

   150cc scooters aren’t quite as frugal, but we’ve seen reports of up to 85mpg. With the larger engine sizes (300cc) you should still get around 70 mpg from a scooter traveling at legal highway speeds. That’s about the same as a Toyota Prius Hybrid, but the scooter will be a lot more fun!

   Scooter Wheel & Tire Size

   Motor Scooter wheel size varies from a minimum of about 10″ to a maximum of around 16″. Most are either 12″ or 13″. This is the size of the metal wheel itself and doesn’t include the tire. The measurements is the diameter of the wheel rims The tire may add 5″ or 6″ to the diameter. My scooter has 13″ wheels (rims), but the tire measures about 19″ across in total.

   So what are the advantages and disadvantages of different sized wheels?

   Well, the smaller the wheel the more maneuverable the scooter can be. The smaller wheel has less of a gyroscopic effect making it somewhat easier to turn (though this also depends a lot on steering geometry). So in general, scooters are more maneuverable than motorcycles (which have larger wheels). The converse of this is that larger wheels may give better stability at speed.

   The downside of smaller wheels is that they don’t roll over obstructions in the road as well. Just think of a pothole in the road. If it’s a large hole and a small wheel, the wheel could fall into it! Even if it’s a raised obstruction like a tree branch or a curb, a larger wheel will roll over it with less effort than a small wheel. That’s one reason why off-road trucks often have monster wheels. When you’re driving over rocks a big wheel makes life easier. Similarly, if you’re riding over roads filled with potholes (for example New York City!), you’ll value larger wheels.

   While a few scooters have 16″ wheels (e.g. MC_X1507) and a few have 10″ wheels (e.g. MC-U1504), most scooters have a 12″ or 13″ wheel which is a reasonable compromise between maneuverability and stability.

   Scooter tires come in all sizes of course, with a typical 13″ wheel scooter tire having a designation something like “130/60-13″. The “13″ refers to the wheel rim diameter. The “130/60″ part indicates that the width of the tread is 130mm (5.1″) and that the tire has an aspect ratio of 0.60 (or 60%), which means that the sidewall height is 60% of the width of the tire. Some tires are designed for front wheel use, some for rear wheel use and some can be used on either wheel. Though most tires today are tubeless, there may still be a few tires which require an inner tube, especially on older scooters.

   The tread pattern may be directional, meaning that it has to be mounted the correct way around to perform properly and there should be an arrow on the sidewall which shows which way the tire should rotate. You may also see a speed designation on some tires between the “130/60″ and “13″. This is a letter which runs from “J” to “Y”. “J” indicates the tire is safe to use up to 62mph, “L” is up to 75mph, “N” is up to 87mph, “P” is up to 93mph and “S” is up to 103mph. You probably won’t be going any faster than that on a scooter. However there is a “W” designation shows the tire is safe up to 168mph. As far as I know there are no “W” rated scooter tires! Most scooter tires will be priced in the $55-$85 region.

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

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