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Building Integrity
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Date:  12-12-2014
Number of Hours:  2.50
Manual Reference:  Section 2
Brief Description:  Injectors no go

The bloody truth is that the engine is FANTASTIC in every way but one. The engine is stumbing when I throttle up too quickly, as if the fuel/air mixture isn't right on the money. I have done almost everything possible to track down the cause and thought a new set of injectors would help. Well, after 2.5 hrs to replace them all it didn't do an ounce of good. In fact it idles worse.
I'm going to put the original injectors back in since idle was much better before. However, I was given a really good tip today from another UL owner that apparently fixed the issue with a pair of needle nose pliers. I guess a few TPS sensor plugs went out with "loose" prongs and aren't plugging in all the way which causes a rich setitng. A simple pull of the plug prong and it snaps into position. I will jump for joy, if tomorrow I find the same issue with mine. It is literally the ONLY problem this engine has.
On a side note, I found a really small 60mm Filter that has JUST enough inlet area required for a 160hp engine that may give me a "rain proof" intake system with filtered air. I'm excited to see how it works out. Space inside an EZ cowl is TIGHT.
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new injectors

new injectors

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small 60mm filter

small 60mm filter

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