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Old 04-10-2009, 04:56 AM   #1
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Default full throttle start

Whenever i seem to switch on my Scumacher Rascal it opens full throttle and i don't dare to start it incase it just flies off...
I can't even lower the throttle with the remote either.
I have been told that this could be a servo problem? (i don't have a clue lol)
Does anyone know where i'm going wrong?
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Old 04-10-2009, 05:34 AM   #2
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Take of the air filter and look into the carb, and check if its open, it should only be open 1-2mm.

Also check it with radio gear on.
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Old 04-10-2009, 06:24 AM   #3
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Default Check servo reversing settings....

Make sure that your throttle servo is not reversed on the transmitter. Turn on the transmitter and then the receiver without starting the engine. Check the throttle servo motion with your throttle trigger. If the servo is closing the throttle when you are squeezing the trigger, then the servo is reversed. There is usually a small switch somewhere on the transmitter that you can change.

If it is moving in the proper direction, your trim settings may have been knocked out of whack...either by something that was laying on top of the transmitter in your pit box or maybe your finger accidentally hit it while picking it up sometime....
Your arrogance blinds you.....

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Last edited by n10cities; 04-10-2009 at 01:53 PM.
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Old 04-10-2009, 09:29 AM   #4
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You have a fail safe that is set up wrong?
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Old 04-11-2009, 02:26 AM   #5
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The transmitter doesn't lower the throttle by any significant amount...
And yes it is doing it in the correct direction...
So the only probable solution would be the trim settings... well i can easily check them thanks
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Old 04-11-2009, 08:04 AM   #6
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Take the servo horn off of the servo, turn your radio on
and dial all your trims to zero. Then turn the switch on
your cars receiver ON. Re-install the servo horn on to
the servo in the proper position.
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Old 04-11-2009, 09:54 AM   #7
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Put a rubber band on your servo linkage, it's the best fail safe you can have.
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Old 04-11-2009, 03:15 PM   #8
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It turns out that the servo thingy (the bit with te screw) was in the wrong place
It's fixed now ^^
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Old 04-11-2009, 05:22 PM   #9
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you might also want to check the servo horn and output on the servo to make shure it isnt stripped out.
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