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Running your RB7 at full throttle Options
rb7wu
#1 Posted : 29 January 2017 09:54:27

Rank: Newbie

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Joined: 29/01/2017
Posts: 2
Points: 6
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
amo1872
#2 Posted : 31 January 2017 08:13:53

Rank: Newbie

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Joined: 23/03/2013
Posts: 4
Points: 2
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.
rb7wu
#3 Posted : 06 February 2017 22:41:21

Rank: Newbie

Groups: Registered

Joined: 29/01/2017
Posts: 2
Points: 6
Thanks for the tip, it runs at full throttle now.
pwormald
#4 Posted : 20 April 2019 22:55:33

Rank: Amateur level 2

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Joined: 17/05/2014
Posts: 43
Points: 135
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.Crying
pwormald
#5 Posted : 24 April 2019 20:29:25

Rank: Amateur level 2

Groups: Registered

Joined: 17/05/2014
Posts: 43
Points: 135
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!!Huh
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