I sent someone a Walbro WT76A carb to try on a DA50R....It apparently worked better than the WT201 they use...I have another customer who is having problems and wants to know how it worked out...Will the phantom WT76 user please speak up ?

Ralph,
Thanks for posting this. If the WT76A works better than the stock one on the DA50 I'd sure like to try one! Not happy with the stock carb at all.

The only visible differences I find in these two carbs-- is location of low speed and high speed ports in the bore.
Other than that -the rest of the carb functions the same -
inverted /upright on my ZDZ's is perfect -always - no "air-on-the -diaphragm-"problems
so is there a functional difference between 201-76 you know of?
The discharge port setup on the 201 sure works better on my engines (rotary valves)
on the DA -does this tend to cause overrich at closing throttle/ then puddling in the reed setup ?
The 201 chokes far more easily than the 76 -at least in the half dozen examples I have swapped . also low/high needle relationship is easier to adjust
It looks like the proximity of th discharge port to the throttle blade is related
Got any ideas ?

YA...use the carb that works better on the engine you have! Capt,n.. could not resist saying that!

Don't know, the only DA50 I ever saw was one of the first, sent to me by Dave himself..I was not overly impressed at the time, maybe they made some changes...I recall the rpm was not a whole lot more than the Poulan 46 I was converting at the time...I even made a post, "who needs technology" comparing the DA to the Poulan....It's in here somewhere, about 4 years ago...

He tasks me,
Here is the link,
3 years 5 months ago.
Ralph, you are slipping
You know they say the mind is the first thing to go!
http://www.rcuniverse.com/forum/m_88.../tm.htm#887247

Yeah, I know, already forgot the second thing
That DA50 I tested must have been a dog.....Maybe it was a Monday morning or Friday afternoon engine...8000 happy owners can't be wrong, or is it mass hysteria ?

So any general concensus on the WT76A? Better than the stock carb or stick with what I got and try to tune it a little more?

Thanks!

I had the WT76A on a Brison.
I like it. Made the engine run hard.
Didn't need to have the screws opened all the way to develop power.
Don't know about it on a DA

Thanks for your feedback.

Do you think Dessert Aircraft would have any suggestions? Think they tried this carb?

I flew again today and teaked the low needle a little more. It's getting better. But sure seems like I have to mess with it alot compared to other engines.