Hi Gaz Got the pics of your mowers and they look great. With regards to the Jap isent you an email offline asking you did it have any model numbers on the engine . On thinking back I did havean engine tyhe same looking as yours but it did n ot have anything stamped on to indicate which model it woukd be . This nay help if you get the chace to look inside.............. Model 80 is 46mm Bore Model 2a and 2s are 51.5 mm Bore but these are both 4 stroke engines so it looks like any thing in 2 stroke is the model 80. I like the model Scott Bonnar you sent pic of and I have a set of Std rings here if you need some 57 mm Std Regards Joe
