GY6 Engine Found in Most Asia Scooters

GY6 Engine

This is a 4 stroke single cylinder, air or oil cooled design that comes standard with two overhead valves. Stock horsepower ratings can be found quoted in the range of 7.8hp to 12.4hp. The engine is capable of producing 12,000 rpm and power upwards of 14 horespower with modifications according to end users. The gy6 engine has a built in swing arm with automatic CVT transmission that is belt driven. This engine was originally manufactured in 50cc, 125cc, and 150cc engine sizes and was found in the Honda Elite and Spacey line of motor scooters. Honda no longer uses this design on their scooters, but chinese, korean, and taiwanese copies of this engine are readily available. Current brands of of import scooter lines that use the Honda GY6 cloned engine technology include: Tank, Strada, Vento, Yamati, SUNL, and Roketa among others.

With the wide availability and cheap cost of this engine, asian ATV manufacturers have started to use this powerplant in their youth line of ATVs (quads) and buggies (off road go karts and trail buggies) 150cc youth quads that contain the GY6 powerplant are found being imported under many brands including Yamoto, Kazuma, and Redcat. Off road buggies and full suspension go karts that include this style of engine inlclude Carter Brothers Talon Line, Carter Brothers XTV, TJ Powersports Twister Hammerhead, Dazon Raider, Kasea Adventure Buggy, Blade Powersports 150cc, Tomberlin Punisher & Crossfire, Baja Motorsports Dune 150.

With the wide availability of this engine in both older Honda products and newer Asian imports there is a vast amount of information, modifications, and performance parts available to the end user. User forums such as buggy news go karts and off road buggy forum and scootdawg forumoffer end users an excellent place to discuss and troublshoot these engines. Users on these forums have tried a variety of modifications produced by third party vendors such as 4 valved high compression heads, big bore kits, high peformance CVTs, performance CDIs, performance carburetors, and performance exhaust kits. The forums are also an excellent source of engine service manuals and general repair guides for tune up and major repair information.