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HelicopterThunder TigerOther › OS HYPER PROMBLEMS
10-08-2005 12:38 AM  12 years agoPost 1
Tonelex

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baltimore, MD

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Hello i would like to know why when starting up my engine the carb have to be 25% open is this normal?

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10-08-2005 05:27 AM  12 years agoPost 2
RobRoy

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Huntsville, Alabama

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No, that is not normal. Where are your needles set at?

Ignorance is curable, stupidity is for life.

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10-08-2005 06:15 AM  12 years agoPost 3
MicroDOC

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Goleta, CA

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Where are you measuring the 25%? Is it on the carb bell crank or on the radio? Check on <http://www.raptortechnique.com> and you will get a good idea where it should be set. The throttle should be fully closed with the left stick down and the throttle cut fully closed and fully open with the left stick toped out. It should idle with the stick fully down and the throttle cut at center or slightly higher. On an engine that's not broken in yet the idle will be rough due to the fact that you want it to run rich to break it in. Once your linkage is set the radio handles the rest of the throttle curve. Hope this helps.

Experience is something you don't get until just after you need it!

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10-08-2005 06:17 AM  12 years agoPost 4
MicroDOC

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Goleta, CA

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I see you have two different helis. Which one is causing you the problem?

Experience is something you don't get until just after you need it!

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10-08-2005 06:25 AM  12 years agoPost 5
MicroDOC

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Goleta, CA

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Tonelex,
Sorry about the stupid question! If I had read the subject I wouldn't have asked that question in the first place. However, my answer does apply to the hyper!

Experience is something you don't get until just after you need it!

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10-09-2005 11:37 PM  12 years agoPost 6
Tonelex

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baltimore, MD

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Hyper problems

Sorry guys it took me so long to reply. RobRoy my needle is 1.25 open from close the idole is at factory set. On my radio the trim has to be up at 40% and i also have to move my thr stick pos. to 25% just to start the engine. But once started and i fly it for about a min or so i can move my thr stick pos.0% and the engine will stay running.O my radio is a 14mz. MicroDoc i measure it from my radio which the thr stick is at 25% with 40%trim and also looking at the marks on the side of the carb which show me the fully close pos, center pos and fully open pos.
I have about 3 gallons on this engine and the temp is around 180 - 200degs. Thanx for the replys im also going to look on the raptortechnique sit to see what im doing wrong.

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10-09-2005 11:50 PM  12 years agoPost 7
dragonlord

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luton uk

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sounds like you servo geromitry in wroung.
as if a hyper was that hight yourd now it m8 with out the governer i can hover with a goog head speed at 30% or so

you dident say if its on a raptor i guessing it is

if so a raptor and hyper 50 the geromitry is piss easy normaly

50% is carb leaver pointing to ground and servo arm strait down at mid stick

the hyper the easyest enging iv ever set up it fits the raptor like a glove

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10-10-2005 12:45 AM  12 years agoPost 8
MicroDOC

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Goleta, CA

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180/200 degs is pretty hot if you're talking about the backplate. The muffer will get that hot, but if it's the backplate that's way to hot.
I'm not familiar with that radio, but on my JR 9303 I move the throtte slider to just slighly above the center position for idle. Your high speed needle setting seems to be somewhat on the lean side. Mine is about 1.5 turns out. Of couse it depends on what fuel you are using and lots of other factors. If you are running on the lean side that would explain the high temperature.

Experience is something you don't get until just after you need it!

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