Chainsaw Repair

This is a short report to make an odd screw driver for my little Tanaka 33ED, which model name here is Tanaka PCS-33EDTP, a top handle trimming saw for light use. (see the first pic.)

When you tear her down to see her carburetor, you will find a couple of "impressive" threads where conventional H and L screws sit. (see the 2nd pic)
These heads do not have cross cuttings for the driver, having only flat heads. Instead you can find cutting on each of their side wall.

In a purpose to tinker these, we have to make a small and very simple Odd Screw Driver, one like this. (see the 3rd pic)

This driver fits to these odd screws on the one side, and fits to the throttle adjuster on the other side. (see the 4th and 5th pic)

The material you need for this new driver is;
   a brass pipe, with 6mm outer diameter, 5mm inner diameter.

Cut the pipe 2 or 3 inches, grind the both ends, and softly give it a bend on the circumference of one end so that it fits to the cutting of these special screws.

You'd better give the other end some taps to get it flattened for throttle adjusting purpose.

Chy

Lol, broken! I might have payed too much time for it.
Instead my satisfaction is PRICELESS!
Chy