ORIGINAL: Silversurfer
You need a 1" or less screw driver blade to do it this way.
Not much room between the needles and the prop on this motor! Especially at full throttle! [X(]
For adjusting these, might I recommend the following little tool. [link=http://bennettbuilt.com/page10.htm][LINK][/link]
Took me about an hour to knock off a couple from dowel and brass tubing in my shop.