026 Stihl

[JWD]

I have a 026 pro was running fine then it started skipping at full throttle. Idles fine
Any suggestions on problem

 

[a. palmer jr.]

You can try several things, a new spark plug, tank vent, maybe richen up the H screw...

 

[SteveSr]

I have a 026 pro was running fine then it started skipping at full throttle. Idles fine
Any suggestions on problem

Define "skipping" or better yet post a video...

 

[JWD]

Define "skipping"

You can try several things, a new spark plug, tank vent, maybe richen up the H screw...

Thanks I will try spark plug first

 

[a. palmer jr.]

I always try the easiest, cheapest things first..

 

[JWD]

You can try several things, a new spark plug, tank vent, maybe richen up the H screw...

I have put new plug new gas line new tank vent still have issues
Send me your number I will text you video of saw running

 

[a. palmer jr.]

We old people around here don't do texts but I guess you can send me a youtube link and I'll listen there. Hint: If you used an oem tank vent you'll have issues with that, it appears that Stihl didn't have a clue of how to vent a tank without it leaking, they tried several versions.
Another thing: Since the 026 is becoming an older saw it might need an ignition coil (module). I usually buy the cheap ones on ebay for around $15. Also, they have carburetors on ebay that cost less than the cost to rebuild, if it comes to that..

 

[Benwa]

Does it "skip" at full throttle when IN the cut & with pressure on it or does it "skip" at full throttle just holding it with no load out of the wood?

 

[JWD]

We old people around here don't do texts but I guess you can send me a youtube link and I'll listen there. Hint: If you used an oem tank vent you'll have issues with that, it appears that Stihl didn't have a clue of how to vent a tank without it leaking, they tried several versions.
Another thing: Since the 026 is becoming an older saw it might need an ignition coil (module). I usually buy the cheap ones on ebay for around $15. Also, they have carburetors on ebay that cost less than the cost to rebuild, if it comes to that..

View attachment 960899

Does it "skip" at full throttle when IN the cut & with pressure on it or does it "skip" at full throttle just holding it with no load out of the wood?

Yes it skips at full throttle

Does it "skip" at full throttle when IN the cut & with pressure on it or does it "skip" at full throttle just holding it with no load out of the wood?

 

[JWD]

Yes it surges at full throttle out of wood
I have tried to down load a short video but unfortunately can not.
Send email and I will send you video

 

[a. palmer jr.]

It's supposed to "skip" when at full throttle and no load, I think you're referring to "four cycling" and generally chainsaws do that if they're tuned well. It should clear up when under load when cutting wood.

 

[Benwa]

Did you ever get anywhere with this issue?

 

[cgeb]

In my experience the 026 while a great saw has an issue. Most of the ones I've run across the fuel line isn't long enough. The fuel filters "stand up" instead of lay down. Get below a half a tank and they tend to cut out from fuel starvation depending on your angle of cut. Keep them filled and see if it stops.

 

[Wood Doctor]

My 026 PRO is a top performer and I doubt I will ever sell it:

'Nuff said.

 

[JWD]

Did you ever get anywhere with this issue?

Yes sir it was the coil causing it to cut out
runs like a top now
Thanks for your help.

 

[Vintage Engine Repairs]

Skipping is most often related to ignition. Poor connections, jumping to ground, failing coil, spark plug.

 

[PA Dan]

In my experience the 026 while a great saw has an issue. Most of the ones I've run across the fuel line isn't long enough. The fuel filters "stand up" instead of lay down. Get below a half a tank and they tend to cut out from fuel starvation depending on your angle of cut. Keep them filled and see if it stops.

Thats the old early 024/026 fuel line. It was updated to a longer one that lays flat. It's a larger diameter where it enters the tank. A 7/16 drill bit is perfect for opening it up.

 

[cgeb]

Thats the old early 024/026 fuel line. It was updated to a longer one that lays flat. It's a larger diameter where it enters the tank. A 7/16 drill bit is perfect for opening it up.

Good to know...

 

[Benwa]

Yes sir it was the coil causing it to cut out
runs like a top now
Thanks for your help.

Happy to hear it. Another one lives on. Nice work!

 

[service logger]

Seeking service manual for Stihl 026 Pro in pdf form.