Hello All, I live in the UK and have joined your site today. I’m hoping some one can answer a question about a mcculloch mac15. I have just bought a good running example ( needs a carb clean and tune) . I primarily bought it as 1. I use chainsaws frequently 2. My farther use to run one. 3. It was born the same era as me(apparently) What I would like to know is my model has a black crinkle finished gas tank, I remember my dads had a yellow gloss gas tank. Doing some online investigation there seem to be both coloured tanks around. Is there any significance to what colour the tanks are ? What years they were made? Which factory they were made? Or is it just a case of whatever was there at the time. Hope someone has the answer, Regards Phil By the way, just awaiting a pioneer 650(no spark) but in its original wooden crate with warranty card and lots of paperwork , so I will probably be asking a few questions about it when she arrives.