Originally Posted by Bikeguy Joe
So yeah, pretty much the same....
Nah , there is a huge difference
The Skyhawk 66 cc GT5 looks the same as the PKs and does not have the squish band
machined in the combustion chamber
There is just a flat wide area on the edge of the combustion chamber and
a very big dome
The Starfire 66cc GT4 has a squish band and runs so much stronger than a PK or a GT5