The large plug right in the center of the valves, requires about a 10mm allen wrench. I removed it the other day thinking it was holding the head on (of course it isn't) but what is it for.
After all the work I have done getting my sons bike going it still leaks around the large rubber gasket on the Left side. I even put the KAwi Bond sealant on it.
Anyone know why this would leak what seems to be very thin oil?
Confused








