I've got a brand new Stihl MS193T here for some simple mods. I ran the saw stock, modded the muffler and ran it again, then advanced the timing and ran it one last time.
The first thing I did was to trim the limiters on the fully adjustable carb. I made several cuts in the wood to tune the carb before each video was shot.
In stock configuration, the saw was very lazy, with very poor throttle response, poor spool up, and quite weak in the cut. It had trouble starting the chain moving if it was already in the cut.
Modding the muffler made a HUGE difference. I'm talking great throttle response, much improved spool up, and much more power. Cut times were reduced by 20%!
I then proceeded to advance the ignition timing 6°. I didn't get the gains that I do on some other saws, but it did seem to hold more RPMs in the cut. Unfortunately, my log was getting bigger as I approached a not, so the cut times don't reflect the improvement. I'm leaving it advanced, based on how it ran and held RPMs in the cut.
Even with only a muffler mod, this little saw runs pretty good. Not bad at all. It's not a 201T, but it's not supposed to be.
Stock
Muffler Modded
Timing Advanced
Yeah baby! This one's a Magnum! I bet that decal adds 1/2 HP!
Same choke setup as the MS150T
Trimmed limiters
The piston is way down in there.
Deflector removed
The exit hole is no large than the head of that little bolt. No wonder it couldn't run.
He said he wanted it loud, so let's open that baby up, lol. The deflector will limit it back down anyway.
Spark arrestor reinstalled.
The back of the stock deflector.
Bent up for more open area.
And that's it!
The first thing I did was to trim the limiters on the fully adjustable carb. I made several cuts in the wood to tune the carb before each video was shot.
In stock configuration, the saw was very lazy, with very poor throttle response, poor spool up, and quite weak in the cut. It had trouble starting the chain moving if it was already in the cut.
Modding the muffler made a HUGE difference. I'm talking great throttle response, much improved spool up, and much more power. Cut times were reduced by 20%!
I then proceeded to advance the ignition timing 6°. I didn't get the gains that I do on some other saws, but it did seem to hold more RPMs in the cut. Unfortunately, my log was getting bigger as I approached a not, so the cut times don't reflect the improvement. I'm leaving it advanced, based on how it ran and held RPMs in the cut.
Even with only a muffler mod, this little saw runs pretty good. Not bad at all. It's not a 201T, but it's not supposed to be.
Stock
Muffler Modded
Timing Advanced
Yeah baby! This one's a Magnum! I bet that decal adds 1/2 HP!
Same choke setup as the MS150T
Trimmed limiters
The piston is way down in there.
Deflector removed
The exit hole is no large than the head of that little bolt. No wonder it couldn't run.
He said he wanted it loud, so let's open that baby up, lol. The deflector will limit it back down anyway.
Spark arrestor reinstalled.
The back of the stock deflector.
Bent up for more open area.
And that's it!
Magnum
