It *is* a GY6, but you have to realize that "GY6" is a fairly generic designation. Most routine service (valve adjustment, belt/roller/variator/clutch, etc.) is common across all the related engines. Many of the stock electricals (starter solenoid, coil, etc) are standard. Something like the Haynes manual for scooters provides most of the information you'll need. Frankly the biggest issue is how to remove the tupperware without breaking things!
The differences I found between a GY6 motor and a Super 8 motor are as follows:
-Although it's looks like a GY6 long case motor, it uses a belt that's similar in size to a GY6 short case motor.
-All the bolts that hold the CVT/Clutch/Belt cover are all the same size on a Super 8 motor where a GY6's are all different lengths.
-The ignition pickup coil is located at 5 o'clock on a Super 8 vs. 12 o'clock for a GY6.
-The kick starter assemblies are different on both motors. The Super 8's kick starter assembly is completely attached to the CVT/Clutch/Belt cover where a standard GY6 has a complicated assembly that is attached to the motor's case.
-The whole final drive gearbox is different on both motors. On a GY6, the drum brake assembly and gear box are part of the motor's case. On a Super 8, the final drive gearbox and drum brake could be totally detached from the engine's case.
That's about all I found that's different so far.
I've installed a different clutch and variator so those are the same on both motors. Also, a GY6 pickup coil works on a Super 8 motor.
I have a Big Bore Kit that I think is going to install correctly. I don't want to rip open the motor to only find out that the jug doesn't fit.
