Wce is right, diaphragm is cactus. Be advised there are 2 different model diaphragms very close to the same shape, so definitely take it with you to the shop
One other thing that can get you with these is the 'bowl' in the top of the tank (especially if it sits for long periods even without E10.
I had one (and a friend had one around the same time), would run at flat stick alright but would not idle. Turned out it pumped enough to keep the fuel level up at flat out, but at idle it drained away and starved it.
Thanks Tyler - I'll do some online shopping at Outdoorking tonight as I'll replace the filters and air-gaskets on both machines too. Appreciate the tip about the bowl in the tank - even running 98 I'll give it a start more often..
Cheers,
TC.
