Stihl ms193t

[Ollie Wall]

Just got my new top handle, and love it. But I want to drill a hole in the muffler to see if it makes any difference. I'm aware this may have been covered in previous posts, but I can't seem to find anything!?!

 

1: is it worth doing?

2: what size hole and where about a on the muffler?

 

Cheers

[harrythecat178]

I wouldn't touch it until out of warranty. Any mods will invalidate it, after that its down to you

[TheHungrySquirrel]

Buy another muffler to drill? Then can swap back if it needs warranty work?

[Ollie Wall]

That was my plan mate, I just need guidence on the size of hole and whereabouts on the muffler ?

[spudulike]

That was my plan mate, I just need guidence on the size of hole and whereabouts on the muffler ?

 

There is no real science behind a simple muffler mod, On a saw this size 8mm - 10mm hole, you need to drill it where the outlet will not melt plastic although sometimes the plastic can be cut back to reveal the new hole.

 

Position - I try to avoid having the outlet direct in line with the exhaust port as it can get VERY loud. Generally on saws like this, I try to get an idea of where the exhaust port is and look for the exhaust gases to hit the opposing side of the exhaust and then drill a hole to make their escape as straight and easy as possible.

 

The can isn't tuned like an expansion tuned pipe so all you are doing is increasing the flow.

 

Not done a 193 to date hence the info above and not a direct answer!

[Ollie Wall]

That's perfect spud thanks for that I'm sure I can figure it out now. Cheers 👍🏼👌

[GregM]

Definitely do it. makes a huge difference on this saw as its really restricted stock. will rev up much more freely.

 

I went for a 10mm for no other reason than that's the only sharp bit I could find

[TheHungrySquirrel]

Definitely do it. makes a huge difference on this saw as its really restricted stock. will rev up much more freely.

 

 

 

I went for a 10mm for no other reason than that's the only sharp bit I could find

 

 

Any shots of where you drilled as I'm thinking of doing mine

[Ollie Wall]

Yeah pictures would be really helpful!?

[GregM]

I'll get some tommorow:001_smile: