250cc motor scooters Information
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Fuel/Air Mixture. The next thing to check is your fuel/air mixture. You could be getting too much or too little of either. If your scooter has been sitting for a while, it's likely that the gas has evaporated and left a bunch of sludgy deposits. If it's been more than 3 months, you should clean out the fuel system and the carb.
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Most scooters need a minimum of 100 psi in compression in order to run start and properly. Compression should be checked when the scooter engine is warm. However, that's hard to do if your scooter is not running. So, just hook up a compression gauge and open up the throttle all the way. Crank the scooter until the needle on the compression gauge stops moving. This should take no more than 5 seconds. Very roughly, 100-125 psi is good, 125-150 psi is very good, and 150+ psi is great. If you don't have this level of compression, then you have bad valves and/or bad piston rings. If you want, you can add a teaspoon or so of oil to the engine through the spark plug hole. Then try the compression test again. If compression is higher, then it's likely you have bad rings. The oil will seal the rings and give you better compression. If compression is the same, then you have bad/misadjusted valves.
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More 250 to 300cc motor scooters InfoGPS Study Case: Moto GPSMon, 22 Dec 2008 18:44:24 +0200
A GPS need not look like all other GPSs out there, square box with buttons.
Here's a very interesting GPS design, unfortunately it's only a design study, not a real product. The Moto GPS is round, like a compass, uses Bluetooth and a touch screen. It's simple in design, and elegant on any motorcycle.
Dear Santa (read Garmin or TomTom), how about one next year?
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Scoot out to beat the crunch in 2009 - Airdrie and Coatbridge AdvertiserSun, 21 Dec 2008 06:38:50 GMT
Scoot out to beat the crunch in 2009Airdrie and Coatbridge Advertiser, UK - Dec 20, 2008It seems 300cc is the new capacity to go for in the scooter world. Gilera, also part of the Piaggio Group, displayed its new Nexus 300, which replaces the ... |
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