RCU Forums - Engine Help

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F-15 Fan

01-25-2008 03:10 PM

Engine Help

K & B .61 2 Stroke

Which direction do I move the needle valve to richen or lean?

Also, my bearings were gummed up, I cleaned them, but now it seems like there is a little almost non-exsistent con rod slack, is this serious?

Please help me, thanks.[8D]

MinnFlyer

01-25-2008 03:38 PM

RE: Engine Help

Just as you turn a screw clockwise to tighten it, screwing the needle clockwise will screw it deeper into the hole - which lets less fuel in, thereby making the mixture leaner.

Not sure on Part 2... Did you remove the con rod during the cleaning?

F-15 Fan

01-25-2008 03:44 PM

RE: Engine Help

No, I am running it a bit right now, and it seems like it recorrects itself, and starts to run smoother.
Thanks on the needle valve though.

F-15 Fan

01-25-2008 05:06 PM

RE: Engine Help

Now it has ALOT of compression.

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