For a start - Hi to all you other green-thumbs out there - quite the plethora of information you have here... especially for an Aussie "noob". I apologise if this has been asked many a time before, I searched, but to no avail unfortunately. Anyhow, as part of my garden artillery, I have a Rover EasyStart Xtra (I don't think you get them stateside) for smaller blocks, and for tidying up where my Husky PR 18 doesn't get too. It has a Briggs and Stratton Quattro 40 engine Pretty much this one: http://briggsandstratton.com/display/router.asp?docid=100180 Anyhow, the sucker just won't turn off, even with me holding the throttle closed. The only way I can get it to turn off, is pull the spark plug lead off (and get a nice zap in the process), or kill the throttle as much as I can, and then flood it using the "primer". I suspect it is an issue with the carby - but how to fix? (especially for those not so mechanically inclined ) Thanks in advance!!!