Thanks Grumpy. Have studied Mr Bonnar,s post in detail on many occasions. Have to agree with you on the right engine for the right mower.The only issue there is it really belongs to my son and he is dead keen to put the current Briggs 550 on.We also have another Scotty to restore and we are currently tinkering with the engine from this. It is a 80102 and would make a suitable replacement for the Kirby if things don't work out. I have to say the Briggs are a pleasure both financially and technically to work on!
