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 Rank: Newbie Groups: Registered
Joined: 29/01/2017 Posts: 2 Points: 6
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Hi everyone
I have managed to properly start the RB7's GX21 engine and followed the instruction to set the needle valve. I'm currently running it 3 full turns from close position.
Every time I try to give it a full throttle, the engine gets flooded and shuts down.
Has anyone experience the same issue?
Appreciate some guidance as it is my first gas engine RC.
Thank you.
Eric
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 Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,051 Points: -13,308
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I had exactly the same problem. I set the HS needle to 2 turns and now I can go full throttle without stalling the engine. I started with 4 turns out and kept leaning it until I got stable full throttle.
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Rank: Newbie Groups: Registered
Joined: 29/01/2017 Posts: 2 Points: 6
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Thanks for the tip, it runs at full throttle now.
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 Rank: Amateur level 2 Groups: Registered
Joined: 17/05/2014 Posts: 45 Points: 141
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Hi, I finished my build in 2017 and still have this problem of engine stalling at full power. Can't wailt to see if reducing HSN to 2 full turns will give me performance I am sure engine should provide. Still a great model with nothing like it elsewhere. Having tried reducing HSN to 2 turns I'm afraid it dosen't work for me and I think it was then running too lean. I would appreciate any other help available and hope ther must be a good number of people actually running their car rather than just displaying it. I wonder Tomick if you have any thoughts / suggestions. 
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Rank: Amateur level 2 Groups: Registered
Joined: 17/05/2014 Posts: 45 Points: 141
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Furtther to my previous post, I did go through the running in process and I am now using 20% Nitro fuel. Oh I wish to hear it sing!! 
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