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CarbonXtreme . Midland Helicopters . HeliProz

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Gasser Model RC Helicopters > I'm starting to hate my gasser
 
 
rvrusty
Heliman
Location: Huntington, NY

I need some real help!!!!!!!!!!!!! For the life of me I can't get this G-23 crap to run right. I pulled the carb apart about 3 months ago and cleaned the hell out of it because the screen was totaly clogged. The thing was running great now it runs like **** .I can't get the needle position right it's either to rich and boggggggsss down at mid stick or it doesn't start at all. Right now I have the low end at 1 1/4 turns and the high end at about 3/4 of a turn. I am using amsoil 6.5oz to one gallon because a guy in my local club says that a good mixture before that I was using Craftsman 2 cycle but the thing was always clogging up (THIS IS KILLING ME). I would go back to glow but $16 - 20 bucks a gallon isn't for me and I need the torque of the gasser to lift my camera stand. As it is right now I can't even get the stand off the ground. DOES ANYONE OUT THERE HAVE SOME GOOD SOUND ADVICE ???????
10-06-2003 07:58 PM
 
 
rvrusty
Heliman
Location: Huntington, NY

Thanks Tom

I'll give it a try!!!
10-06-2003 08:09 PM
 
 
rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

open up the main needle

Open it from 3/4 to at least 1 1/8th maybe 1 1/4 as 3/4 is too little. Of course lower the oil content too.

-=>Raja.

1005 Xcell Gas, BHH G26 3D Plus, Jewel Generator
Spectra-g, BHH G26 3D Plus, Jewel Generator
10-06-2003 08:25 PM
 
 
helidog
Senior Heliman
Location: usa

HOLY CRAP

Toms Right on the nose with,(TO MUCH OIL).
That mixture is enough for three gassers
10-06-2003 09:30 PM
 
 
Obsessive
Key Veteran
Location: 41.73N 71.41W

YIKES on that 6.5 ozs.... Go to 1.5oz with AMSOIL; that's 85:1, and is STILL more than you need.

This dosage only works for AMSOIL.

Another thing to help aspirate is to remove the foam from the air cleaner.

Lastly, "bin" the Walbro 167a (stock G23) carb and bolt on the newer Walbro 603 (new G231).
10-06-2003 11:29 PM
HOMEPAGE  
 
 
Al Magaloff
rrMaster
Location: 12,199 Posts- Enough Time Wasted. See Ya!

Obsessive is right. For clarification: It only works with the Amsoil product that has 100:1 on the bottle. Amsoil makes other oils that can not be run this lean. The packages are similar. Make sure it says 100:1.
10-07-2003 01:09 AM
 
 
Malorie
Elite Veteran
Location: Paw squared, MI

A great starting point for your needles is 7/8 turn out on the low needle and 1 1/4 on the high. That should get you in the ballpark.

And as everyone else said, way to much oil.

Life's a journey, NOT a destination.
10-07-2003 02:36 AM
 
 
rvrusty
Heliman
Location: Huntington, NY

Thanks for all the feedback guys

AL
The Amsoil I am using says series 200 2-cycle racing oil. The only thing I don't see is 100:1 It says 50:1 ,should I change the recomended mixture at all. It says on the bottle 21/2oz to 1 gallon My mixture would have bean much closer to what you guys are saying if I stuck to that and didn't listen to the guy at the field.

Thanks again for the advice guys I'll try it first thing tomorow morning
10-07-2003 03:32 AM
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

2 oz / gallon

is what I run in MY hanson modded g-23

I will have to check the label on my bottle for product number.......but with a gasser, you don't have to get the bottle out often enough to remember.....

James

GOOD guy list-39, BAD guy list-0
10-07-2003 03:47 AM
 
 
imback
Senior Heliman
Location: las vegas, nevada

rvrusty

the racing oil is 50:1 and the standard oil is 100:1. obviously, with the racing oil, a good start is double the 100:1 oil ratio. 4 ounces is more than enough.

better idea. the oil is so cheap, i would give the rest of the bottle away and buy some amsoil 100:1. then run two ounces, 64:1 and you should have a happy engine. you can lean it to 80:1, but i would not go any leaner.

good luck.

a disciple of billme.

nels

just do it!
10-07-2003 03:54 AM
 
 
Wally
Veteran
Location: San Diego, CA

My 2 cent...

If you decide to run your current oil; mix it 50:1 as stated.

If you go to the Amsoil 100:1, don't run any thicker than 80:1 or you will have problems. 80:1 is fine, 90:1 is fine, even 100:1 is fine.

Needles: go to 1 1/4 top and bottom, put in a new plug and go.

Sneak the the low needle in a bit at a time to get ris of the burbles and kicks.

As an aside, I talked to an Amsoil engineer that ran a leaf blower at 200:1 for 50 hours and tore it down. Minimal wear. They then labeled it 100:1 for an added safety margin.

Amazing stuff...

The Big Wally
10-07-2003 04:15 AM
 
 
Al Magaloff
rrMaster
Location: 12,199 Posts- Enough Time Wasted. See Ya!

rvrusty, I would agree with nels, use that oil in something else, and buy a bottle of the 100:1 stuff. We have found that these carbs don't do well with too much oil. 2oz per gallon of 100:1 is the best/safest place to start. 80/90 :1 should be used by veteran tuners after the machine is sorted out.
10-07-2003 10:41 AM
 
 
Dr.Tim
Key Veteran
Location: Mojave Desert

All I fly are Gassers! First off if your Not running the :100:1 Amsol" use the recommended mix to get 50:1 ratio (2 1/2 Oz. to a Gallon) if you using the 100:1 Amsol then mix 2 oz. to a gallon ... They thickness of the oil is different or Viscosity if you will ..... As for Needle setting ... Go 1 1/4 low and 1 3/8 high ... this should have you running a little Rich .. Then you can lean as need for you Copter! Have Fun !!

From Simple minds come simple ideas! Starwood Models, Approach Engineering
10-07-2003 03:38 PM
HOMEPAGE  
 
 
rvrusty
Heliman
Location: Huntington, NY

I gave it a try

It started right up now I think its just my needle position I need to get right. After I messed with it a bit I got it to run strong.I hovered for about a minute or two them brought it back down to give it a once over ,When I tried to start the engine again It gave me some trouble.I got it started and when I advanced the throttle it bogged down and cut off. I leened it a bit and got the same result. After leening a bit more I advanced the stick and it bogged but didn't cut and at about mid stick it started to spool up.Now the low end is at about 3/4 How lean can I run it with this amsoil before I start to burn up my engine.
10-07-2003 06:31 PM
 
 
rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

Wrong way!

If the engine won't spool up, IDLE IS TOO LEAN. Richen it so that it will spool up and you will be able to take off. Set high speed to 1 1/4, low just start richening from where you are until it spools up and you lift off. Once successful and in the air, spend 2 minutes hovering and then land. Wait 30 seconds and try to spool up again. If it can't now that the engine is hot, richen just a tiny tad and try again until you can successfully spool up when hot. Richen just a tiny bit as you want it to be JUST rich enough that you can spool up as too rich will cause burps and tail kicks.

Good luck,

-=>Raja.

1005 Xcell Gas, BHH G26 3D Plus, Jewel Generator
Spectra-g, BHH G26 3D Plus, Jewel Generator
10-07-2003 06:48 PM
 
 
Dr.Tim
Key Veteran
Location: Mojave Desert

I agree ... WAY TO LEAN!! Low needle should be about 1 1/4 amd High around 1 3/8 ... when you adjust your low do it in 1/16th increments .. It's the small adjustments that make these gas engines very reliable.

From Simple minds come simple ideas! Starwood Models, Approach Engineering
10-07-2003 07:09 PM
HOMEPAGE  
 
 
MikeS
Senior Heliman
Location: So. Calif.

If needles are close and it still leans out check the gasket just under the carb, if it only has one crankcase pulse hole in it install it so it lines up with the holes in the manifold and carb. This pulse is what actuates the fuel pump. And will act like you are describing.
10-07-2003 07:22 PM
 
 
rvrusty
Heliman
Location: Huntington, NY

gasket

there was a small rip in the carb gasket I'm ordering a new one and hopefully that will remidy all these problems
10-07-2003 09:49 PM
 
 
ELOSSAM
Veteran
Location: Es

If anyone wants to know about the fuel cycle into a Walbro carb take a look here.
http://www.digital-fusion.ca/sbr/carbs.htm

Elossam
10-07-2003 09:52 PM
HOMEPAGE  
 
 
ImRich
Veteran
Location: Derry, NH USA

You're getting plenty of help, but here is another thing to think about.

If you have the foam air cleaner, be sure that it is NOT saturated with oil.

Just dampen it with oil, and then use a paper towel to compress it over and over until the paper towel gets barely wet when you compress it.

Of course before you do this be sure your foam element is not too dirty from prior uses.

All of this stuff adds up as you are learning to a bad running engine.
From your carb screen being dirty, to bad gaskets, bad or dirty plugs, too much of the wrong type of oil, and of course, messing with the needles trying to solve other problems.

Start with your gas engine too rich (as others are telling you about the needle settings) and go from there. Slowly!

---
Rich
10-08-2003 03:30 AM
HOMEPAGE  
 
 
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