I have a nearly pristine late model 026PRO, which came with the WT403A carb and single hole muffler. I did a lot of searching on here about carb fit, and there certainly are a lot of carbs, even with both adjusting screws that will fit, but there seemed to be some confusion about how clean an install it would be with the screws lining up with the saw body holes and dust getting in without the grommet. My saw is one that has only two holes for the H and L screws, not the three hold version. Well, just so there's no confusion, the black, two hole, grommet from any of the fully adjustable carbs will fit on the WT194, and of course the idle screw grommet will fit also, making a perfect fit, with no gaps for dust to get in, and screws that line up perfectly with the holes in the body. It is a perfect fit all around. The intellicarb fitting from your old carb will fit just fine on the WT194 also, so it's a complete replacement.
I just thought I'd pass along that this is what I've done to mine. Now I can go ahead and do a mm and open up the saw a bit, so it will breathe better. It appears that the WT403 is simply the EPA choked version of a WT194 sans intellicarb.
I plan on doing only a moderate mm, adding a couple of 3/8" holes and checking and opening up the stock hole to match. Anyone have any suggestions about how far to go on this. From what I've read, the best mod is to drill three total 7/16 holes, opening up the stock hole as one of the three. Is this a good idea or should I start small and work up??? I'm not after the absolute best saw I can make it, just a good improvement over stock, so I don't want to go too far with my mod.
I just thought I'd pass along that this is what I've done to mine. Now I can go ahead and do a mm and open up the saw a bit, so it will breathe better. It appears that the WT403 is simply the EPA choked version of a WT194 sans intellicarb.
I plan on doing only a moderate mm, adding a couple of 3/8" holes and checking and opening up the stock hole to match. Anyone have any suggestions about how far to go on this. From what I've read, the best mod is to drill three total 7/16 holes, opening up the stock hole as one of the three. Is this a good idea or should I start small and work up??? I'm not after the absolute best saw I can make it, just a good improvement over stock, so I don't want to go too far with my mod.