KymcoForum.com
Scooters - 125 to 300 => LIKE 200i => Topic started by: Stig / Major Tom on May 30, 2013, 10:16:01 AM
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KymcoUSA says the Like is cooled by 'forced air'. Does that mean that there is a fan down there somewhere, or do they mean that air is forced into engine compartment by the movement of the scooter down the road?
I do hear something running when I switch on before starting..........is that a fan? (FI, fuel pump, hydraulics for the tail assembly, cloaking shield coming online,... what?)
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There is a little fan on the right side, if you can call it a fan. My guess is that is there to be better than nothing when you are sitting still. Forced air refers to the air forced over the bike as it moves forward. When you turn the key on, you hear the fuel system energizing.
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Forced air is instead of liquid cooled. There is a plastic fan that is attached to the stator which is
attached to the crank shaft. So the engine runs that fan not an electric motor.
See the chrome intake on this scoot;
(http://i9.photobucket.com/albums/a74/homemadepowa/DSC00774.jpg)
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Good question. The the GY6 engine is "force air cooled" (as are some 150cc air cooled Vespas, Yamahas etc). There is a shroud around the cooling fins of the cylinder and the inlet on the right side of the engine "sucks in air" and ducts it to the head. The hot air escapes through an exit duct at the bottom of the engine (rectangular shape opening in the bottom of the shroud). The "fan" is very similar to the type of fan/blades in a bathroom exhaust fan...in other words, it is a circular "disk" with slotted fins. It is attached to the alternator which is connected to the other end of the drive shaft. Its a great and simple solution to ensure that the engine gets the proper air it needs to stay in operating range.