These things are a little tough to set.... But the thing about Webra's is they like to run a little on the lean side... You can't set the high end by going 300 - 500 below the peak.... You need to set it just about on peak, then for the low end, run it a little over idle and pinch the line for a few seconds.. If the RPM's come up, it's too rich, if they come down or it quits, it's too lean.... If it doesn't change, its probably just about right.... You might wanna double check your glow plug.

I have seen some with bad carbs... Horizon is really good about replacing them for you....

I'd offer to tune it for you... but since it's much more humid here, it wouldn't help much....

Be patient. You'll get it.