RCU Forums - View Single Post - DA50r PROBLEMS<, thoughts needed!!!!!!!!!!!!!
Old 06-12-2006 | 12:06 PM
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Default RE: DA50r PROBLEMS<, thoughts needed!!!!!!!!!!!!!

ORIGINAL: jongurley

O.K. here is the problem, got my DA50 back from DA last week with a brand new ignition box, (and before anyone ask it does have all updates etc and the motor has 5 gallons through it and now I am running 100:1 amsoil),, ok, I left the needles alone at wear DA had them which is probrably factory settings????????? I am in North Carolina they are in Arizona??????? anyway, first flight, I took off motor burbled somewhat through midrange, I would give it full throttle and it seemed to run fine, even on up lines, but when I would through it in a quick Knife edge either way it would act like you cut the ignition switch off(it cut off that quick), I could level out right quick and it would catch back up,,,, and when I would go upside down it would also try to cut off,,but in level flight it ran great, now after the first flight of the day it quit doing that which is weird???????????????????????????????????????/ O.k next 3 flights when I would throttle back it would cutoff ,, it did it twice on final approach and one time I was doing a harrier and it cutoff,,,, ???????and finallyon the 5th or non 5th flight,,, I was going to fly it again,, and I tried to crank, (with choke off) and I would flip it with the throttle at idle and it would start for about a second or two and cut off and it would do this for about 3 or 4 trys and then it would not fire anymore until I choked it again, in which it would only flood and not pop,,,usually it would pop with the choke on and then I would turn the choke off and it would start on the 5th flip,,,,,,,, does this starting problem possibly have something to do with it cutting off in flight at idle, is the low end to lean or rich, is it loading up these are the things I am not familar about,,,,, if anyone has any suggestions please help,, thanks in advance,, P.S. it is on a Wildhare Extra300 special, I have a 1100 mah NIMH 4.8 volt battery on ignition,,thx
Your at about 100' above sea level. Maybe 150' at best.

Da is in Tucson Arozona. Elevation 2390' above sea level.

Why wouldn't you just tune the engine for best running at your altitude? It's not going to run right at 100' with the same needles from being adjusted at 2390'.

Did the guys at DA adjust it? Or did they NEVER touch your needles? If they touched your needles to test the engine at their shop--then it's all whacked out for your altitude. Adjust it.

I don't understand the reluctance to adjust the needles on a gasser. I read post after post from poeple asking for factory settings on a gas engine. And I read post after post from people who claim to be running their engine for break in without ever adjusting the needles for best runing at their altitude.

Is it voodo? Black magic? Witchcraft? too adjust the needles on a gasser?

Tune the damn thing to run best at your altitude. Doesn't mater if it's brand new or got 1000 gallons through it. Just tune it.