How to start engine

[TruH]

That's curious there is no instructions on how to start my Raptor 30 v2.

OK this is what I've done so far:

1. Switch on radio
2. Switch on receiver power
3. Check radio to see if controls are ok
4. Moved throttle stick fully down
5. Plug in glow driver
6. Placed starter on top of heli and spin

Unfortunately it didn't start.

I tried already with the throttle stick on radio fully down and trying to start the engine, but it won't start.

Do you keep the throttle fully closed or open a little before you can start the engline?

[mackem54]

hi there,
have you started the engine before ?.or is it new,
the most obvious thing to check is that the stop on the fuel line is open
i am still a novice but will try and help you,
first is your needle set to the manufacturers recommended,
when i start mine i lift the throttle a little till it starts but not too much as you dont want the clutch to engage,i never touch the needle because mine is not a bad sterter,
hope this helps but im sure someone with more experiance will reply.good luck

[TruH]

It's new and I have never started a rc heli engine before. There is no fuel stop on mine. Yes manufacter's setting.

[mackem54]

does the engine turn when you use the starter

[Stuart]

What engine, what plug, what fuel are you using,

Take the plug out and check that it glows, if throttle is right down and trim is half way this should be a good starting point for starting your heli.

If using the same power source for plug & starter, this is a common problem where your starter draws all the power and the glow dies off. This is why I prefer a glow stick.

turn your plug dial up higher to achieve a strong glow while using the starter.

KEEP A HOLD OF THE MAIN BLADES WHILE STARTING.....

I know this might seem daft, but you do that the throttle set up in the right direction. i.e it is closed at the bottom, I once changed a Futaba srevo for a JR on throttle and I needed to reverse the servo. If on full with a very glow it will prove difficult to start, but if it does grip like helll on the blades and pull off the fuel line. 8O

[TruH]

Thanks for advice.

Using OS#8 plug, OS39H engine, glow stick and robbe 12V starter.

I'm holding blades tight with one hand (bit scared) and with 1/4 of throttle the heli starts! I am so happy - my first heli starting up.

But when I take out glow stick, engine goes for 20 seconds and then stops. I think there's another thread about this, I'll search for it.

[Stuart]

Sounds possibly rich....on the heli you have two needle settings the idle on sits within the carb just in front of the the fuel inlet, its a small screw. You want to lean it a little 2-3 degrees.

But also if this was starting from cold you have to give the engine the opportunity to warm up alittle. Did you open it up a little to get the rev's up , NOT in the air, but just enough to wind it up and get the engine going.


What fuel are you running.

[TruH]

I'm using coolpower 10% nitro.

I've tried leaning it using the high speed needle and the engine still turns off as soon as I remove the glow stick (sometimes lasts 3 secs). I even tried riching it with no avail.

No I havn't rev'ed it up yet, engine doesn't idle long enough (without glow stick). I'm already using 1/4 of throttle stick to start engine.

Now the glow stick is low on power. For next time, I'm afraid to turn the low speed needle, since I can't even remember where the manufactuer's setting was for the high speed needle. So I might make a mess of things. I should have drawn on a piece of paper where the setting was.

Maybe it's the OS#8 plug, I might try a new one before turning the low speed needle next time.

[Stuart]

Its the low end needle that controls the idle speed of the engine. The one on the side of the fuel inlet. A screw driver is required.

[chappers]

but you have to have the main needle set first as this controls ALL fuel entering the carb.

[TruH]

Just to let everyone know (in case of someone having the same problem), I found out that my problem is because I had to have the throttle stick a little bit over 1/4. On my JR X2610 remote it works at 3 notches up (not 2 and 1/2 notches).

So is this normal?

I mean no one has answered my question before, is it correct to have engine idle at throttle minimum or throttle a little over 1/4.

I think it really depends on how one sets up the throttle linkage. Mine was setup where by remote throttle at minimum gives throttle lever on engine right back, i.e. as far as it will go.

[Stuart]

You should have your ATV's at 100% on both sides and with the throttle trim at the very bottom the throttle should be fully closed.

Then at full throttle the carb should be fully open. To start you put the trim up to be between 1/4 and mid stick to start but still with the stick at the bottom.

Obviously with trick is to get the exact linkage length to give you the right travel over a perfect arc to match the travel of the throttle on the carb.

[Raptorite]

Hi TruH,

From what you have just said, it sounds to me like maybe when you setup the throttle linkage the trim on the transmitter was in the middle position.

To answer your question above, the engine should tick over nicely with the stick at the bottom and the trim somewhere approaching the half way mark.

What you need to do is to re setup the throttle linkage. Have a look at this thread for details on how to set it up correctly;

http://www.rcheliaddict.co.uk/module...iewtopic&t=126

Cheers,

Pete.

[TruH]

I was following the tutorials at Raptor Technique: http://www.raptortechnique.com/throttlesetup.htm

So I was using trim at centre. But as u and Stuartn mentioned to use trim at lowest, I think it's a much better solution.

Great tutorial you've given, I followed it and I think I have it correct now.

[tgg]

Hi
What I found when I started off was to set up my throttle with the carb slightly open, this allows you to start the engine with the trottle lever fully down . Then you can use the trim on your box to adjust when starting with full or half tank as you will find that the engine leans out a bit unless you buy a header tank. Hope this helps