06-06-2014, 10:32 PM
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#22 (permalink)
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Registered Users
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Quote:
Originally Posted by ryanpietro
Mines doing the same damn thing (my engine is brand new) Richard said since it's new it's needs to be broken in. I know if I move the throttle in waves it helps. Also hitting the ignite button on my align 2in1 right b4 trying to spool it up helps (since it lights the plug for 15seconds) but now the problem in having is when I land it the motor it staying revved up real high and pinging. Hopefully my high needle was just open to much because there was fuel all over the floor where I spooled up at. When I adjusted the idle needle it did nothing
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Try blowing through your one way valve! Or get some methnoal in a spray bottle and squirt through the oneway!
What Ive discovered, is that the OW, gets glued up with oil if it hasn't been run for a week or two, then when you do go out for a fly, it runs lean at idle and as you spool up it suddenly dies/stops like its rich, because the OW has suddenly popped open giving a heap of fuel pressure to the tank which then floods the carby just before getting out of idle fuel circuit.
This would also explain, why motor goes leanish at idle after a big run, due to OW blocking/sticking with oil! Tank pressure has been reduced a little because of the OW sticking shut or at least, reducing its ability to transfer motot crank case pressure to tank. And since most of us tune with a clean OW, once oil gets in and gums it up, the tune will change! 
So now every weekend I go flying, Im going to give my oneway a flush with Metholated spirits, to give it a clean setup to start from.
Rolf |
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