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Old Jan 05, 2007, 02:56 PM
pbjones81 is offline
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How do I tune my OS FP .40 *NEWBIE ALERT*


Im a beginner flyer....been to the field several times, but Ive always been kinda clueless about tuning my engine and would like some advice. Like the subject says, its an OS FP .40

I cant ever seem to get it right, because its always choking out and dying. So how do I use the needle valve thing to tune it?
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Old Jan 05, 2007, 03:06 PM
indoruwet is offline
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HAve you read the sticky in the engine section ?
Old Jan 05, 2007, 03:09 PM
pbjones81 is offline
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Quote:
Originally Posted by indoruwet
HAve you read the sticky in the engine section ?

no sir....sorry, I wasnt aware of one. I will check there. thank you
Old Jan 05, 2007, 03:14 PM
Lightnin is offline
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https://www.rcgroups.com/forums/showthread.php?t=205602
Old Jan 05, 2007, 04:23 PM
Matthew Allen is offline
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The sticky has very good advice. Just remember that for adjusting the idle, your engine has an airbleed carb rather than twin needle. This means that leaning the idle involves opening the airbleed screw, and richening closing it. This is the opposite of the high speed needle, which you close to lean.

Matthew

EDIT: Do you have the manual for your engine? If you don't I can send you it as a .pdf.
Old Jan 05, 2007, 04:39 PM
pbjones81 is offline
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Quote:
Originally Posted by Matthew Allen
The sticky has very good advice. Just remember that for adjusting the idle, your engine has an airbleed carb rather than twin needle. This means that leaning the idle involves opening the airbleed screw, and richening closing it. This is the opposite of the high speed needle, which you close to lean.

Matthew

EDIT: Do you have the manual for your engine? If you don't I can send you it as a .pdf.
matthew....no i dont have the manual....Ive had this engine for a loooong time. My dad bought the plane for me when I was 10. that would be AMAZING if you would send it to me as a pdf file. here is my email addy.

pbjones81@hotmail.com

thanks a lot, thats very thoughtful of you.
Old Jan 08, 2007, 04:47 PM
Matthew Allen is offline
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Quote:
Originally Posted by pbjones81
matthew....no i dont have the manual....Ive had this engine for a loooong time. My dad bought the plane for me when I was 10. that would be AMAZING if you would send it to me as a pdf file. here is my email addy.

pbjones81@hotmail.com

thanks a lot, thats very thoughtful of you.
Sent. Sorry for the delay, I was away for the weekend.

Matthew


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