Super Tigre G .61  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> Super Tigre G .61
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Super Tigre G .61 - 4/17/2002 1:54:10 AM   
rvd



Posts: 398
Joined: 2/7/2002
From: CA
Status: offline 		I recently purchased one of these engines for my 40size cap.
The engine seems to be really finicky with the needle adjustment, not to mention she puffs alot smoke.
Just wondering if anybody has noticed these to be really picky?
And also what glowplug and nitro are you using with it?
I am currently using 15% fuel with a O.S A5 .
       Post #: 1

Super Tigre G .61 - 4/17/2002 2:12:41 AM   
m.gramling



Posts: 1787
Joined: 1/8/2002
From: Atoka, TN, USA
Status: offline 		I have a ST 45, 51. I had to find the old type of barrels for the ST carbs. ST years ago made a great motor, and carb. They have swapped carb designs and now the carb load up alot in the mid range.
If you have never had a ST before. Read the manual. It will give you some pointers on how to set the low end. It takes a little learning to get the low end set. Also my 45, and 51 took over 1 1/2 gallon of fuel to start getting broke in.They are a little finicky to set some times. But once you learn how it is a breeze. At least it is on a old carb anyway. They new carb barrel I could never get set exactly. So I started looking at swap meets to find an old carb for my 2 engines.

My ST 45, I used about 2 1/2 gallons. It is now coming alive. Throttle responce is excellent w/ no hestitation.

I have a ST 51 that I have run 6 gallons thru. I bought it used from a guy that flew it every weekend for a couple of years. That he bought used from a dude. This ST is well over 6 years old. (to my knowlege) I wore it out. I need to tear it down and rebuilt it. But it is a wonderful mtor.

(in reply to rvd)
       Post #: 2

ST .61 - 4/17/2002 6:57:29 AM   
Hobbsy



Posts: 10873
Joined: 12/2/2001
From: Colonial Beach, VA, USA
Status: offline 		I picked up a St .61 ABC on my way to Toledo, I run it on Fox 5% nitro with 20%lube half castor and half syn. I use a Fox Gold Post idle bar plug and it is not finicky at all. 15% is a lot of nitro for a ST.

_____________________________

"I have gone faster backwards, upside down and on fire than most people have gone at all" Don Garlits

(in reply to rvd)
       Post #: 3

Super Tigre G .61 - 4/17/2002 8:06:45 AM   
Vince


 

Posts: 1650
Joined: 2/2/2002
From: Nederland, Tx.
Status: offline 		Agreed, 15% is alot of nitro for a ST. They are a lot happier with 5% or 10%. I have just used Tower house brand plugs and never had a problem. The carbs are different to set up than other carbs, due to their sensitivity. If you have the carb directions follow them to the letter and make all adjustments in very small increments.

Vince

(in reply to rvd)
       Post #: 4

Super Tigre G .61 - 4/18/2002 3:21:39 AM   
w8ye



Posts: 18129
Joined: 12/11/2001
From: Taylortown, OH, USA
Status: online 		There is a post by A.M. Cross on the other engines forum on here whereby she explains how to set up the ST carb. She is the Customer Service Rep for Great Planes. They are now the world Distributor of Super Tigre engines.

It amounts to removing the carb. You turn the spraybar to where the half moon slit is looking straight down the barrel.

You set the idle needle to where it is half way into the slit when you have the throttle held wide open.

After you get the engine running and get the high needle set, then the low needle,... you adjust the richness out of the midrange by turning the spray bar a little bit one way or the other.

I have a lot of ST engines and have not had any trouble with them. The newer carbs with the round spray bar seem as easy to adjust as the older ones with the straight sides except the high rpm is down a little. There is one carb on the big Super Tigers like the 2300 that has a dog leg cam slot on it. This carb seems to be more trouble than the rest. There are also other brands of carbs that will work on a ST like the Perry and some of the Magnum carbs.

I have an ABC and a ring type G61. Also two G91's, ringed and ABC S61K's, A G51, A GS40, A COMO S40, 3 G21 46's, and a G21 40.

Good luck

Jim

(in reply to rvd)
       Post #: 5

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