Part 2 of 2 The finishing 180 grit grinding tool valves installed into the 'jig' head . Finished piston, ready for installation.
Part 1 of 2 Well back in the original update I alluded to the fact that there was quite a difference in weight between the old 44mm 125cc pistons and the new 47mm 142cc pistons. At the time I decided to try the lighter pistons without balancing the entire reciprocating assembly. The results were more than satisfactory with no appreciable difference in vibration. Now that I'm back in my trade I have access to very accurate electronic scales used for colour matching ...