Carb Hi and Low Screws keep vibrating loose.

[Cut4fun]

The set I know of.

[John Mc]

What a pain in the rear-end! Why can't they just stick with the standard screw driver? Do they really think that's going to stop someone intent on adjusting the mixture?

I heard someone mention that some size or another of plastic/rubber tubing works well on the splined screws... not that I'm likely to have the right size lying around anyway.

[Cut4fun]

The D was on my Solo. I just cut slots. 

The spline became a pita when doing a bunch over and over with plastic tubing. I broke down and got the spline screwdriver. Saved a lot of time in the end when doing 3-4 poulans in a row.

[05_sprcrw]

I have now have 3 out of the 4 I am just missing the D set. It sure makes things easier even though like others said you can get by with out it if you want to.

[JohnG28]

That's the tool I would need for my little Husqvarna 142.  A while back before I realized they couldn't sell this tool I had a dealer recommend using a piece of fuel or impulse line to do the trick if adjustments were needed.

[Yoopersaw]

Where can I pick up a set of these?

[Cut4fun]

Where can I pick up a set of these?

FEEbay for the whole set.

[05_sprcrw]

Like someone said ebay you can get the single driver or the complete set very reasonably.

[05_sprcrw]

Well I got the driver in and it is too small for the throttle adjustment on the 394/395 so I am going to end up just making on myself and see how that goes. A pair of long needle nose pliers can probably get in there and turn it with the rubber boot on but I am going to try this more because I can then any other reason.