026 carb/choke issue

[StihlKicking]

I have an 026 that is kinda hard to start 10-15 pulls when cold. After taking a closer look at it I'm starting to think i have a problem somewhere in the carburetor linkage. After 10 plus pulls when cold the saw will idle and run like a champ also after it's been started it will fire with one pull.

Here's the thing when I push the master control lever all the way down into choke position it doesn't appear that it really moves anything in the carb. The butterfly stays closed unless I give it throttle. The choke on the filter engages correctly but the butterfly doesn't move. Also in fast idle position nothing happens the saw just sits there four stroking.

What have I hooked up wrong? What am I missing? Thanks in advance for any and all help.


Sent from my iPhone using Tapatalk

 

[dall]

the choke is on the filter itself

 

[Stump Shot]

Check to see if there isn't a wood booger or something keeping the choke valve fully closed. If open just a bit it makes it hard to "suck" fuel like it's supposed to.

 

[StihlKicking]

Check to see if there isn't a wood booger or something keeping the choke valve fully closed. If open just a bit it makes it hard to "suck" fuel like it's supposed to.

The choke in the filter is spotless, no debris, however it appears to be an old filter. You think a new filter would help? Could a problem with the choke on the filter also account for the fast idle position acting non existent? Shouldn't something in the carb change throughout the 3 positions even though the choke is in the filter? The choke on the filter engages as it should when the lever is down. Thanks this is driving me nuts. This is my first saw with this type of choke set up.

 

[dall]

is the trigger locking down when setting the choke ? if not you have a problem at control or trigger mechanism

 

[Stump Shot]

What dall said.

 

[StihlKicking]

is the trigger locking down when setting the choke ? if not you have a problem at control or trigger mechanism

The throttle or the master lever?


Sent from my iPhone using Tapatalk

 

[Stump Shot]

If I remember correctly the trigger should be squeezed before the master lever is engaged.

 

[StihlKicking]

If I remember correctly the trigger should be squeezed before the master lever is engaged.

That is correct you have to squeeze the throttle to move the lever down to fast idle and choke but when you let go of it in choke it disengages the throttle completely. Is this correct?


Sent from my iPhone using Tapatalk

 

[Stump Shot]

At that point the throttle should release down to high idle, not stay at WOT. The master control and or the throttle should be checked for wear at the engagement points. also where the master control is captured in the saw body for wear, making it a bit sloppy.

 

[StihlKicking]

At that point the throttle should release down to high idle, not stay at WOT. The master control and or the throttle should be checked for wear at the engagement points. also where the master control is captured in the saw body for wear, making it a bit sloppy.

After looking at the linkage in the saw tonight it appears that the plastic tabs on the master control lever and the throttle trigger that are supposed to catch and keep the butterfly slightly open while In the choke and high idle position are slipping past one another allowing the butterfly to go back to straight up and down closed position. Is it time to look for some new pieces or is there a way to repair this?


Sent from my iPhone using Tapatalk

 

[Jughead]

Sum ting wong

 

[huskihl]

After looking at the linkage in the saw tonight it appears that the plastic tabs on the master control lever and the throttle trigger that are supposed to catch and keep the butterfly slightly open while In the choke and high idle position are slipping past one another allowing the butterfly to go back to straight up and down closed position. Is it time to look for some new pieces or is there a way to repair this?


Sent from my iPhone using Tapatalk

If you squeeze the trigger and push down the master control, that's full choke and high idle. Lift the master control one click without touching the trigger, that's supposed to be high idle. Blip the trigger and it returns to idle (which is controlled inside the handle via the trigger/operator presence lever).

My 066 does that. Once it fires on choke, when I move the master control up one click, it comes off choke AND high idle without touching the trigger. It's either the trigger, or the operator presence lever in the handle, or a combination of both. The parts needed are relatively inexpensive

 

[RI Chevy]

Without seeing any pics, or being there, it could also be an issue with the LA screw adjustment.
Did the saw run ok prior to this issue?

 

[Redfin]

Your 10-15 pull cold issue is most likely the choke flap not seating fully into the seat. Ive had to trim several to fully close.

 

[StihlKicking]

Your 10-15 pull cold issue is most likely the choke flap not seating fully into the seat. Ive had to trim several to fully close.

Possibly, that still wouldn't affect the throttle as far as I can tell.


Sent from my iPhone using Tapatalk

 

[StihlKicking]

Without seeing any pics, or being there, it could also be an issue with the LA screw adjustment.
Did the saw run ok prior to this issue?

The saw was locked up, I rebuilt it. It runs great now. It's just that engaging the choke in no way moves the throttle.


Sent from my iPhone using Tapatalk

 

[Redfin]

The saw was locked up, I rebuilt it. It runs great now. It's just that engaging the choke in no way moves the throttle.


Sent from my iPhone using Tapatalk

Are you missing the tab on the choke lever that holds the trigger in high idle?

 

[StihlKicking]

Are you missing the tab on the choke lever that holds the trigger in high idle?View attachment 31832

No it is present and looks intact to me but when engaged it slips past the tab on the throttle trigger seemingly allowing the butterfly to return to full closed position. Can these become worn? I wish I could get my hands on a 026 that is working correctly, then I could figure this out pretty quickly.


Sent from my iPhone using Tapatalk

 

[dall]

i have a 066 doing the same thing just havent looked for parts yet