Sold Stihl 026 powerhead

[Mad Professor]

FWIW, I have had 3 PRO’s come thru my place that I fixed up and sold. All three had comp carbs w/o adjustable H circuits. They had a little white plug blocking the H hole. This one is mine and has been ported, so it has an adjustable H circuit. However, the air filter cover remains sans adjustment pic for the H screw. If they came with adjustable carbs, I haven’t seen one yet. View attachment 1149403

They certainly could have been produced with both I suppose. The above is what I have learned from my experience.

It's an EPA thing. I believe the early USA pros came with the WT-426. IPL shows the for Canada.

The covers swap. You can make a WT-194 a compensator swaping covers, or a WT-426 non-compensator.

 

[av8or3]

I’m so glad I found this. While I can’t be absolutely certain, I’m betting I swapped the cover from this to a new WT-194 on one of the Pro’s that came thru. The 194’s were so inexpensive once, it was easier to just put a new one on.

 

[BeatCJ]

@Brushwacker
Thank you Good Sir, saw came in today, looks exactly as I expected.

You sure used a fair amount of tape.

 

[BeatCJ]

Does it have a carb with both Hi/Lo screws?

FWIW, yes, this saw has 2 mixture screws.