Idle speed is set by the control module and fuel solenoid.
You're treating a symptom, not the cause. There is no throttle sensor on the saw.
That's the fuel solenoid, and should never be re-installed.
Modifying the idle speed wont help a starting problem.
And could create more problems .
Starting is controlled by the upper handle linkage, along with the starting
switch on the choke shaft. That tells the module the saw is in start mod.
The memory circuit can help, but not entirely, in case
the saw is restarted in the start position, when hot.
An Mtronic can and will flood due to operator error.
You, most likely, had a leaking fuel solenoid.
Replace that before you start re-engineering the fuel system.
Saw will be hard to start after. Get it started and let it run to
purge air in system. Shut it off, wait 5 min, then do the reset.
Run on start for 45 - 60 sec. Shut off immediately. Then make five
heavy load cuts. Info in instruction manual is for a change in altitude