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HelicopterThunder TigerOther › needle settings for OS32
10-20-2004 07:26 PM  13 years agoPost 1
nojohnny101

rrElite Veteran

10 miles north of​Cincy, OHIO

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hey
sorry guys for bothering you guys with this but i really want to get htis rgiht...
i have a raptor 30v2 wtih an os32 and i want to get the needle settings right or have some ball park figures to go with
i have about 2 1/2 gallons on it so its broken in but i am just going for power now...
i have a mvp muffler that i got with the kit and am running 15% WILDCAT with an os#8

Let me know please

Thanks
~Will~

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10-20-2004 08:40 PM  13 years agoPost 2
blockatvalpo

rrKey Veteran

Reston, VA

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I think mine is about 1 and a half out, maybe a few clicks in. It is going to vary depending on where you live. I haven't touch the idle needle since buying the engine 2 years ago.

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10-20-2004 08:51 PM  13 years agoPost 3
steve69

rrApprentice

Berkshire, UK.

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Remember the midrange needle has an effect for up to 75-80% throttle so this is the one to adjust first to regain some of any lost power due to changing weather, as long as your Main needle is in the ball park of about 1 1/2 turns out, tune the LSN for good hovering, then tune the Main for full power climb outs.

This is only a bit of a basic explanation as the typ of muffler, elevation, temperature, humidity, pitch curves and max pitch, throttle curve, plug type, blade type and a few other things I may have missed can all contribute to how your engine will perform.

I have recently gone through 3 mufflers (due to product failures), different temps/humidities and moving onto NHP Razor Carbons from woodies and each time I have needed to adjust mixtures and throttle curves to maintain power and head speed. It's a long road to learning how to make the most out of a small engine but the plus side is when you do hit the sweet spot it is easier to notice than perhaps on a larger more powerfull engine witch has power to spare.

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10-20-2004 09:18 PM  13 years agoPost 4
ksue*com

rrNovice

Northern California

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OS recommends 1.5 turns out
you can view or download an os32 engine manual at
http://www.osengines.com/engines/osmg1940.html

to tune for performance,
switch to 30% heli fuel lol

I recommend you get an engine temp gauge
turn in the needle until the engine temp runs at about 210*F
and be sure it smokes

The low speed needle =LSN
after the high is set,
engine at a low idle,
pinch the fuel line shut,engine should speed up then die.
over a 5 second timespan(count 1-1000,2-1000 etc...)

if it takes longer,lean the LSN (turn in)
if it doesnt speed up,richen the LSN (turn out)

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10-21-2004 01:40 AM  13 years agoPost 5
nojohnny101

rrElite Veteran

10 miles north of​Cincy, OHIO

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thanks guys so far
but what i really wanted was like your needle settings (i know there are variables) but just to get a ballpark


Let me know

Thanks
~Will~

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10-21-2004 01:44 AM  13 years agoPost 6
Jason Adamo

rrApprentice

Port Charlotte Fl

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Mine is about 1 1/2 i just got it back in the air today for the first time in 3 months and it ran great the entire flight.

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10-21-2004 03:29 AM  13 years agoPost 7
ksue*com

rrNovice

Northern California

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well in that case...
lean it out until you get a 1/8" hole in your piston...then richen it a little
if the engine starts to sieze up give it more throttle
lol

you were already given 5 ball park settings
1.5 turns out
be sure to use a new glo plug

you have to tune it for YOU'RE area,elevation and climate
for best results follow my original post

I am up around 5000'
if you set you'rs where mine is you would burn up your engine

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10-21-2004 11:16 AM  13 years agoPost 8
nojohnny101

rrElite Veteran

10 miles north of​Cincy, OHIO

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thanks guys alot!
but isn't there 2 needles for the os32...a high end needle and then a low end needle? which one is more important...as you can tell i'm not very good with engines!


Let me know

Thanks
~Will~

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10-21-2004 12:41 PM  13 years agoPost 9
steve69

rrApprentice

Berkshire, UK.

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Did you look at the link "ksue*com" left for you, there is a link on the page for the manual, Here http://www.osengines.com/manuals/32sx-h-manual.pdf

If you can print it out, it has more info than you really need but is always usefull for reference later (you too can then pretend you are an expert )

FYI the low end needle is adjusted through the small hole in the centre of the throttle linkage, for the correct adjustment it would be quicker for you to read the link I have posted as my typing and spelling sucks

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10-21-2004 11:08 PM  13 years agoPost 10
BPFlyer

rrApprentice

Wichita, KS

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Follow the manual, Keep in mind the low speed screw controls a large portion of how the engine will run. It is a balancing act with the OS 32 to get it to idle and transition to high speed without getting hot or being slobbery rich.

Keep checking the engine backplate temps as you make small adjustments!

Fly it like you stole it!

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