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Old 02-24-2006, 03:38 PM   #1
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Default Help with Nitro Evader ST Idle

I am wondering if I have my idle set too high or too low on my Duratrax Nitro Evader ST. Below is a short video of it. LMK what you guys think. Thanks.

http://www.zippyvideos.com/8925759013949056/100_0763/
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Old 02-24-2006, 04:26 PM   #2
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it sounded good but you still need to make a couple small adjustments.

An engine should idle at a noticiably lower rpm after 5-7 seconds of idling. This is caused by the engine "loading up" - too much fuel coming into the engine. This will eventually cause it to stall after another 5 or so seconds.

What you need to do is turn in your idle screw by an 1/8 of a turn and then richen your low speed needle about an 1/8 of a turn. Don't be afraid to make adjustments, it is how you learn. It is alright if the engine runs lean for a minute or two so don't worry about that. Don't make any adjusments more than an 1/8 of a turn at a time.
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Old 02-24-2006, 05:23 PM   #3
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Which way do I turn the idle screw? Clockwise or counter clockwise? Thanks for your info. It just seems to idle faster, then start idling slower alot.
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Old 02-24-2006, 09:35 PM   #4
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Quote:
Originally Posted by mkimmer
Which way do I turn the idle screw? Clockwise or counter clockwise? Thanks for your info. It just seems to idle faster, then start idling slower alot.
to raise the idle like I said - turn the idle screw clockwise. When it idles higher, does the truck move under its own power?

Remember just make small adjustments - 1/8 turn at a time, once you set the idle screw don't touch it - this screw is rarely adjusted once you get your truck to idle properly.

Weather plays a huge role too, any significant temp differences will make huge differences in how the motor runs and idles. Example - you tune your truck to run in 40 degree temps it will run really good, but if you take those same carb settings and run your truck on a 70 degree day, it will be too lean and it will run like crap.
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Old 02-25-2006, 04:18 AM   #5
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Yes, the truck will start moving by itself when it idles higher. Thanks for all your help. I appreciate it. I am playing with the settings. I almost have it where it needs to be.
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Old 02-25-2006, 09:48 AM   #6
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you don't want the truck to move under its own power.

But so far it seems you are getting the hang of everything. Remember to make small adjustments. I have some good tuning articles that you should keep - pm me w/ your email if you want them.
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Old 02-25-2006, 01:39 PM   #7
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I pmed you. Thanks
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