FlyingGiants - View Single Post - I've heard so much about the DA 50, it let me down!!!

Ih82crash · 05-26-2008, 10:17 AM

I have a 3W 70 that was flying great. yesterday when coming out of a blender the engine begins to sputter. I bring it in for a landing and taxi to the pitts. I try adjusting the needles and start it. it idles fine, but when I take it to full throttle, it sputters like it is rich. I assume that since it started after a blender it has to be something that came loose. Probably the clunk line came off and it is sucking air. I empty the fuel tank to see if that is the problem, but to no avail. Still idling fine, but sputtering at full throttle.

I go home puzzled wondering if I sucked a piece of debris in the carb or something, maybe it is my ignition at full throttle showing signs of going out. I have a MPI miracle switch on the ignition that is supposed to fail in the on pisition. Could it be? I change out the switch and bingo problem solved. I have read about a few guys having problems with the circuit board vibrating loose and the switch failing, I guess I joined that club. Long story short check your switch.

05-26-2008, 10:17 AM	#2
Ih82crash Team Japaleno hard man brand Join Date: Jan 2007 Location: Elko, NV Posts: 513 Awards Showcase Total Awards: 1	Re: I've heard so much about the DA 50, it let me down!!! I have a 3W 70 that was flying great. yesterday when coming out of a blender the engine begins to sputter. I bring it in for a landing and taxi to the pitts. I try adjusting the needles and start it. it idles fine, but when I take it to full throttle, it sputters like it is rich. I assume that since it started after a blender it has to be something that came loose. Probably the clunk line came off and it is sucking air. I empty the fuel tank to see if that is the problem, but to no avail. Still idling fine, but sputtering at full throttle. I go home puzzled wondering if I sucked a piece of debris in the carb or something, maybe it is my ignition at full throttle showing signs of going out. I have a MPI miracle switch on the ignition that is supposed to fail in the on pisition. Could it be? I change out the switch and bingo problem solved. I have read about a few guys having problems with the circuit board vibrating loose and the switch failing, I guess I joined that club. Long story short check your switch.