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Home✈️Aircraft🚁HelicopterCentury Radikal G20-30 N640 Hawk Predator › Century Hawk engine question
02-23-2010 08:03 AM  10 years ago
bensidus197217

rrNovice

Richmond B.C. Canada

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engine
that sounds like a good idea, I'll yard that little stove out and give it a good check over. It would flash if I blew on the hose from the muffler and at one point it ran for a little bit but that was when I had the high speed screw turned out about four or five turns. So for it to be pulling in air from some place seems like a very real possibility. So once I get it back together then 1 1/2 turns on the idle screw and 2 to 2 1/2 turn out on the high speed mix should do it right.
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02-23-2010 11:58 AM  10 years ago
chris6414

rrApprentice

Holly Ridge, NC USA

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1 1/2 to 1 3/4 on the main needle is what I have. I can't remember what my idle needle is at but I am sure 1 1/2 is too lean. I think I started at like 4-5 turns and worked in from there on the LS. If it starts and spits lots of fuel when idleing, then turn in your idle needle till it runs better. The low speed needle is set from Idle to about 60-70% throttle (IE, hover) unlike airplane engines. If it has slow headspeed ,lots of smoke and spitting fuel in a hover, lean out the LS a little at a time, till the hover has good power and headspeed. If is not too rich, open it up(LS) till it is and work back leaner. You don't want to start lean and adjust. I always start rich and tweak it in. You want to be just inside of the perfect lean settings on the LS to be safe. Just a tad rich in a hover. I haven't touched my HS needle since I set it in both summer and winter. Do you have the OS .32 manual? If not I can send it too you. If you don't know anything about the motor's history I also recomend pulling it to examine it for leaks and loose hardware and gaskets.

Also, too prime, plug the exhaust and crank the motor with the throttle open. I don't usually need to do this except in the winter months.
Century Hawk Sport, OS .32, Futaba 7C, GY-601 9251
Predator Gasser SE G-23, Fut 3010 servos, JR gyro/servo
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02-23-2010 01:35 PM  10 years ago
bensidus197217

rrNovice

Richmond B.C. Canada

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engine
I got the manual and plan on doing some studying this week as well as give the engine a good check over. I was told it is brand new and it does look the part.
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02-24-2010 02:06 AM  10 years ago
bensidus197217

rrNovice

Richmond B.C. Canada

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hawk
The manual is really going to help. With the exception of the huges body I have the same helis as you Chris. Once I read the manual I can see where I never had a clue as far as carb adjustments went. I'm looking forward to getting it running and this time my adjustments will be much less brutal
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02-24-2010 04:46 PM  10 years ago
oldfart

rrProfessor

Vancouver, Canada

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Yep, the manual is always a good place to start.

It is too bad some women did not come with them.
Phil
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Home✈️Aircraft🚁HelicopterCentury Radikal G20-30 N640 Hawk Predator › Century Hawk engine question
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