Thanks Gadge, much appreciated. I do believe the fuel I put in might of been E10.. think I might have to get straight 91 or even 95 in there. So the ethanol in E10 is likely to damage the diaphragm ?
What about 95/98, how do the additives in those affect mowers?
Dieselboy: I looked at the originals, but found (from Aus stores) they're almost double in price, then adding on shipping... I can get from Amazon for about $12 delivered (but still 3x more costly). I figured if the cheaper ebay diaphragms were the same, why pay double

Thanks guys, much appreciated
