Stihl MS 261 Carb Limiters Caps

[Heller]

Howdy Folks,

I have had a MS 261 for a couple years
now, and have avoided messing with the limiter caps on the carb because they are of the metal variety (photo attached) instead of the simple red plastic kind. I have a 461 and the limiters were easy to remove and take the tabs off. But this is a different beast. Does anyone have any recommendations concerning the removal or defeat of these metal limiter caps? I live at 7000 ft and cut wood up to 10000 ft, so having full adjustment of this carb is imperative. I appreciate any input, thank you!

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[Woodslasher]

@Mastermind Worksaws have you pulled the limiters on these before?

 

[cookies]

use a sheet rock screw,screw it in and use pliers to pull them off

 

[Heller]

use a sheet rock screw,screw it in and use pliers to pull them off

Thats what I do for the plastic ones but have not heard confirmation that that is still non-destructive solution for this kind. Have you done it before?


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[cookies]

I have with other saw carbs with metal caps, it will have a steel needle under the pot metal or aluminum cap

 

[BradSt]

I used the drywall screw method on my 261, and it popped right off without any damage. At sea level, it needed another 1/8 turn out past the stop. At 7-10k, I'd venture a guess yours is already fat.

 

[huskihl]

Drill out the 2 aluminum plugs you see on top of the carb body. The jets will then turn freely. Don’t try popping them out with a drywall screw, it can render the cap useless

 

[Heller]

Drill out the 2 aluminum plugs you see on top of the carb body. The jets will then turn freely. Don’t try popping them out with a drywall screw, it can render the cap useless

Just wanted to thank you for the input, @huskihl , I drilled those plugs out last night and that did the trick.

 

[stewr]

2.5mm hex...stick it in the hole & turn

 

[BradSt]

Don’t try popping them out with a drywall screw, it can render the cap useless

I've done quite a few that way without issue. Popped the limiter cap off and snapped it back on in a new position. You just have to be a little careful. Took all of 30 seconds.

 

[huskihl]

I've done quite a few that way without issue. Popped the limiter cap off and snapped it back on in a new position. You just have to be a little careful. Took all of 30 seconds.

I’ve been into several that the owner tried taking them out and they were broken. The cap just flopped around doing nothing when adjusted. So rather than having to epoxy the caps to the jets or make new caps on the lathe, it was easier to drill the limiter.

Even if you popped them off, the limiter is still in place. My purpose was to defeat the limiter itself.

 

[quantico]

Any new saws that dont have that stuff

 

[SimonHS]

Any new saws that dont have that stuff

Stihl MS500i

 

[SAWMIKAZE]

Drill out the 2 aluminum plugs you see on top of the carb body. The jets will then turn freely. Don’t try popping them out with a drywall screw, it can render the cap useless

Do this.

It's your best advice.

 

[SAWMIKAZE]

I’ve been into several that the owner tried taking them out and they were broken. The cap just flopped around doing nothing when adjusted. So rather than having to epoxy the caps to the jets or make new caps on the lathe, it was easier to drill the limiter.

Even if you popped them off, the limiter is still in place. My purpose was to defeat the limiter itself.

You can bypass the whole cap and limiter with the stihl tool to adjust the screw. And/or the right allen to get in there.

A few clicks rich and ta-da.

But...the cap is obviously still restricted in it's movement, it's just in a new range of adjustment on the screw.

 

[SAWMIKAZE]

Any new saws that dont have that stuff

The m-tronic offerings as well as the 500i (fuel injection)