Greenmachine
XS650 Enthusiast
Another stupid question from the land of oz. I just installed a pamco ignition and HHB pma. I have read threads how to find TDC and I was wondering how accurate it needs to be with the set up I just installed. I have read how to make use a degree wheel and piston stop. I don't have access to a welder at the moment to make a stop out of a spark plug but I do have a dial indicator which I found to be of little use on an assembled engine due to the angle of the spark plug entry. I can see through the spark plug entry when the piston gets to the top and goes down. Would I be able to roughly guess tdc by looking at the position of the piston and then mark it on the pma or would I have to be more accurate? And before anyone says I should have marked it from my old generator,The engine is freshly rebuilt and I never had the old generator.