Finished putting the C-125 back together after the exhaust valve replacement. Fired it up and let it warm up then set the carb. Got it running nicely, then I notice oil running down the front of the engine. Valve tappet cover leaking. So off with the carb then the cover. Made a new gasket and refitted everything. Fired it up and let it run for a while and no more leak. Refitted the bonnet/hood. Now ready for grass cutting duty again.