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Nitro Engine Factory Needle Settings List


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found them

Q:What is the factory setting for STS engines?A:The suggested setting to start with is around;

.12

High Speed needle -- 4 turns out from the end

Low Speed needle -- 4 turns out from the end

Mid Range needle -- Flush with the housing

Idle -- 0.5mm open

.21-.30

LSN -- 4.5 turns out from the end

HSN -- 3 turns out from the end

Idle -- 0.5mm open

Please keep the engine temp. not higher than 120

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Schumacher R18

HSN - 2-4 turns out

LSN - 3-41/2 turns out

IDLE 0.75mm open

is there a more accurate setting for this engine as this seems a bit far apart

i currently have mine set up at hsn 3 turns out lsn at 3.5 turns

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Schumacher R18

HSN - 2-4 turns out

LSN - 3-41/2 turns out

IDLE 0.75mm open

is there a more accurate setting for this engine as this seems a bit far apart

i currently have mine set up at hsn 3 turns out lsn at 3.5 turns

Hi Grovehead. I asked the guy in my local model shop if he'd check the needle settings on an unused rascal engine and the settings he gave me where HSN 3 turns and LSN 3.5. I'm using 16% fuel and so far i've leaned the HSN to 2.5 turns which works for me. I've just put the LSN back to 3.5 turns after I struggled to tune it. I'll have another go on sunday. Hope that helps.

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  • 2 weeks later...

SETTINGS FOR THE...................................... FORCE R36 (5.9cc)

Your high speed needle is normally about 3.5 turns out from fully closed.

The carb should be a millimeter or so when brakes are fully engaged and at neutral.

The low speed should be proud so about half a millimeter out from the casing. force.jpg

good.gif * Thanks to Modelsport for the great customer service and finding these setting's out for me.* good.gif

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picco 21 factory needle settings

p24550.jpg

Master Needle Valve - main control for fuel mixture. Set at 2 to 2 1/2 turns from closed. Adjust this needle for maximum

RPM and power without being too lean or too hot. Make sure you start at bottom of needle seat!!

Barrel Needle (Low Speed) - 7mm Carburetor, factory setting is " Turn needle in until is stops, do not over tighten. Now,

turn out counter clockwise 10.5 to 11.5 turns. This needle is in the center of the carburetor barrel and provides throttle

response. It is not the idle adjustment. Turning screw "IN" is Lean and "Out" is Rich. Do not adjust this needle until the

Master Needle is set for power and best performance. This needle will only effect throttle response, so adjust needle until

throttle response is clean with little or no delay. Once set, do not continue to turn (lean) needle further. This is important

since continuing to turn needle will only increase engine temp, at lower RPM, which will throw off engine overall tuning.

Barrel Stop Screws - Used for adjusting Idle. Set for 1/16th inch gap to start new engines. You can open more for faster

idle.

anyone know the settings for the picco p3 .21? there's no way that 10.5-11.5 turns of the lsn is right on mine.

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SETTINGS FOR THE...................................... FORCE R36 (5.9cc)

Your high speed needle is normally about 3.5 turns out from fully closed.

The carb should be a millimeter or so when brakes are fully engaged and at neutral.

The low speed should be proud so about half a millimeter out from the casing. force.jpg

These settings apply for the HN .28, .32 and .36 engines.

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looking for the factory settings for a go b21 nitro engine

hi mate factory settings for go b21 is flush lsn and flush hsn

good luck

daz

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any 1 got settings for a picco p3 21 basic

plus this setting for the teamassociated/thunder tiger 28 duel start is a mile out the right setting are

hsn 2.75 turns out

lsn 6.5 turns out

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  • 2 weeks later...

has anyone got the factory settings for the kyosho GXR-18 Engine settings please , i cant seem to find them on the net at all , thankyou good.gif

HSN: 2.5 turns from closed

LSN: 2.5 turns from closed

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help needed my son's friend has a mavrick neon xb buggy could yous please help me with the settings as another one of his friends has adjusted them and mucked them all up and not got a manual any help would be greatfull

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  • 3 weeks later...

Hi Everyone

I have recently just bought a second hand GV rex-x 1/8 in great condition except a loose battery case in the car .As i was testing it out my batteries came out and i lost all control of my car and crashed.When the car hit it threw its self into really high revs luckily enough my main gear diff had lost all its teeth so it did not fly off uncontrolably.I have replaced all the bad parts with new ones.BUT now after replacing them all i can not get my engine to start with ease and when it does start it cuts out.So this meaning the engine is fine.

PROBLEM

my engine refuses to start with ease and it keeps over flooding itself .Since i bought it second hand i dont know what the default setting are for my needels which is what i think is causing my hard to start and cutting out ptoblem ive even changes my glow plug and starter and still refuses to start easily and stay running sometimes cuts off when i try to accelerate also can anyone plz help me

ineed needle settings for a 21 force engine

Edited by Chris1984
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  • 2 weeks later...

SETTINGS FOR THE...................................... FORCE R36 (5.9cc)

Your high speed needle is normally about 3.5 turns out from fully closed.

The carb should be a millimeter or so when brakes are fully engaged and at neutral.

The low speed should be proud so about half a millimeter out from the casing. force.jpg

good.gif * Thanks to Modelsport for the great customer service and finding these setting's out for me.* good.gif

Hi guys, ive just purchased one of these from MSUK and upon inspection i see the LSN is actually screwed IN 1mm from the outside of the case (servo uniball)...

Any advice of what to do before i run it in?

Cheers

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This is a place to post all the manufacturers stock settings for nitro engines. The aim is to build up a list with as many engines as possible and hopefully provide a clear guide on how to reset your engine to default for trouble shooting and easy starting.

Hopefully this will solve a lot of problems for new and old members and also provide information for more obscure makes of engines that people are struggling with.

HSN = High Speed Needle

LSN = Low Speed Needle

Unless stated assume all settings are anti clockwise turns opening the needles as you go.

Keep it simple and clean and we will all benefit.

Heres some to start off......

222000010_250.jpg

AR21 & AR28 appear identical.

Ansmann Racing AR28, not confirmed but a good starting point.

HSN - 4-4.5 turns out

LSN - Flush

IDLE 1mm open

GO .28 3 Port

HSN - 3.25-3.5 turns out from fully in.

LSN - 1 turn in from flush

IDLE - 1mm gap

h2808.jpg

Hyper Macstar .28 6 Port

HSN - 4.5 turns out from closed

LSN - 2.5 turns out from closed

IDLE 1-1.5mm open

Hot Bodies .26 Powerhouse

HSN - 3.5 Turns from fully closed.

LSN - 3.5 Turns from fully closed.

Idle - 1mm open.

KyoshoGX21.jpg

Kyosho GX21 Engine

HSN - 4 Turns out from fully closed

LSN - 0.5mm in from flush on valve

IDLE 1mm Gap in carb

Leo .15, not confirmed but a rough starting point.

HSN - 2.5 turns

LSN - 3 turns

IDLE 1 mm open

LRPZ28Spec3.jpg

LRP Z.28 Spec 3

HSN - 3.75 Turns From Closed

LSN - 3.75 Turns From Closed

IDLE Gap between 0.5mm and 1.0mm open

Mach4271600x1200.jpg

Mach 427 (lst2 and muggy)

HSN - 4 turns out from bottom

LSN - 2,5 turns out from bottom

OS21V-spec1600x1200.jpg

OS .21 V-spec

HSN - 3 Turns out from fully closed

LSN - Flush on valve

IDLE 1mm gap in carb

RBTM5231600x1200.jpg

RB TM523

HSN - 6 turns from closed

LSN/IDLE Needle - 5 turns from closed

24w4or9.jpg

Schumacher X18

HSN - 2 1/2 turns out

LSN - 0.70mm in from flush

IDLE 0.50mm open

Schumacher R18

HSN - 2-4 turns out

LSN - 3-41/2 turns out

IDLE 0.75mm open

SH281600x12001600x1200.jpg

SH .28

HSN - 3 turns out

LSN - 3 turns out

IDLE 1mm open

Team Associated / Thunder Tiger 28 Pro Duel Start Engine

HSN - 2.75 turns

LSN - 2/2.5 turns

Thunder Tiger Pro .21

HSN - 2.5 Turns

LSN - 1.5 Turns or Flush

IDLE 1mm open

TRXPRO151600x1200.jpg

TRX PRO .15

HSN - 2.5 turns out

LSN - Flush with throttle arm assembly

IDLE 1-1.5mm open

TRX251600x1200.jpg

TRX 2.5 & 3.3

HSN - 4 turns out

LSN - flush with valve or 1.5-1.75 turns out

IDLE 0.70-1mm open.

can u put the engine of thunder tiger S50

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