This E-Tube carburetor is a good mixer.  As it stands now, I prefer the original PWK knockoff, but the E-Tube unit runs great with only minor tweaking.  I’m confident that I can iron out the few hiccups.  I don’t think the overly rich starting circuit would bother most folks.  I’m disappointed that I didn’t see a BIG improvement in acceleration, but I intend to keep at it and see if I can achieve at least a small improvement.  I’m also gonna see if I can change that enricher jet to a .014”.  That should be a fun project.

If you order a PWK knockoff and end up with one of these E-Tube carbs, have no fear, it will run just fine.  I hope some of you find this information useful.

I enjoyed reading the topic.

I won't get around to tuning my motorcycle anytime soon, but I think it's cool that all of this is in the available database.

I am eager for a similar set of pin end gauges.

I recently managed to buy a second-hand box of Swiss micrometers for smaller holes, but that only goes douwn to 6mm (0.236 inch (or 1/4").



It is nicer to work when you can measure precisely.

Sorry for the large photo. Imgur, where I host my photos, no longer has the function to post photos in any size.