White smoke coming from exhaust on Stihl 201TC

[Blah]

Connie bashing all week, this afternoon my 201 started blowing white smoke, really smelly as well.

 

I run it on Aspen and have done for a while so can't be bad mix. Any help on what could be causing this and how to fix it?

 

Other than the smoke, the saw seems to run and cut fine.

Edited September 30, 2021 by Blah

[Stubby]

Just now, Blah said:

Connie bashing all week, this afternoon my 201 started blowing white smoke, really smelly as well.

 

I run it on Aspen and have done for a while so can't be bad mix. Any help on what could be causing this and how to fix it?

Someone yanking your chain , put a bit of diesel in there ?

[AHPP]

Someone yanking your chain , put a bit of diesel in there ?

My first thought too.

[Stubby]

10 minutes ago, AHPP said:

My first thought too.

Mind you , its hard to come by just yet !

[Dan Maynard]

Or someone filled fuel with chain oil and then tipped it back out. I've heard that can make it smoke for a tank or two, apparently, never seen it myself obviously, honest.

[AHPP]

20 minutes ago, Dan Maynard said:

Or someone filled fuel with chain oil and then tipped it back out. I've heard that can make it smoke for a tank or two, apparently, never seen it myself obviously, honest.

That's more likely than the diesel.

[Blah]

Thanks for the suggestions, but it's really not fuel related. I'm interested to find out what else could be causing this.

[AHPP]

Thanks for the suggestions, but it's really not fuel related. I'm interested to find out what else could be causing this.

Air, spark or compression then. That’s all there is. I’d still say fuel.

 

Or something like chain oil dripping onto the exhaust maybe.

[Pete Mctree]

If it is producing white smoke when running at normal temp, then it is burning something in addition to aspen and 2 Stoke mix.

 

Rinse the tank out, add fresh fuel & try again.

[Retired Climber]

16 minutes ago, Pete Mctree said:

If it is producing white smoke when running at normal temp, then it is burning something in addition to aspen and 2 Stoke mix.

 

Rinse the tank out, add fresh fuel & try again.

Whilst I agree in principle, in reality that's not the case. I have an old hedge cutter that's really smokey (old hs81 r) and that's only ever had decent fuel in it.