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Old 06-26-2009, 10:43 AM   #1
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I can get my Novarossi to start first try, but when i go to give it throttle it just stalls. The engine runs at a high idle, then shuts off when i give it throttle. It won't start up again until i drain the fuel from the motor. So that means it's rich. But what should i go about doing to fix this? I know the basic tuning, but this is new to me. Adjusting the idle gap doesn't help. My fuel is a few months old, Could this be the problem?

Any help is appreciated.
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Old 06-26-2009, 10:47 AM   #2
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Are you heating up the engine?
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Old 06-26-2009, 10:47 AM   #3
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No
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Old 06-26-2009, 10:50 AM   #4
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Wait, lets start over. Are you breaking in your engine?
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Old 06-26-2009, 10:54 AM   #5
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No it's already been broken in. It hasn't been ran for a while.
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Old 06-26-2009, 10:56 AM   #6
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sounds like a glow plug to me
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Old 06-26-2009, 11:06 AM   #7
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I've replaced the plug. The pipe drains tons of fuel. Sometimes when i get it idling, it will just cut off. But then other times when i ease into the throttle it will cut off.
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Old 06-26-2009, 11:23 AM   #8
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Could bad/old nitro be the problem?
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Old 06-26-2009, 11:25 AM   #9
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Quote:
Originally Posted by Cory Kerber View Post
I've replaced the plug. The pipe drains tons of fuel. Sometimes when i get it idling, it will just cut off. But then other times when i ease into the throttle it will cut off.
You say it is rich, why don't you lean the LSN?
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Old 06-26-2009, 11:47 AM   #10
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Quote:
Originally Posted by Cory Kerber View Post
Could bad/old nitro be the problem?
Yes
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Old 06-26-2009, 12:00 PM   #11
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The nitro i've got is probably 6 months old Byrons Gen 2. It sat in my shop over the winter. I guess i'm an idiot now

Also i think i've overtuned, because now i can't even get my engine to fire. I've got to find the stock needle settings and go from there.
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Old 06-26-2009, 12:02 PM   #12
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The nitro i've got is probably 6 months old Byrons Gen 2. It sat in my shop over the winter. I guess i'm an idiot now

Also i think i've overtuned, because now i can't even get my engine to fire. I've got to find the stock needle settings and go from there.
That fuel is still good. What nitro and oil percentage? Nitro can last a year or 2 sitting in a cool environment.

Heat the engine up to 200 degrees with a heat gun or hair dryer and it should start easily.
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Old 06-26-2009, 12:05 PM   #13
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It's 30% Gen 2 You don't think the alernating temps in my shop could have harmed it? It was anywhere from 30-100 degress in there. It doesn't have the "carbenation" that it use too.

I've got to figure out factory settings, before i try starting it again.
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Old 06-26-2009, 12:07 PM   #14
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Dude - go back to fqactory settings and start from there- it sounds like your are really fat on top and bottom. its idling high because its not enough fuel being burnt off and its shutting off because the top is dumping to much fuel in while the carb is open. "make sense"


Go back to factory (including the idle needle)

When you tune make sure you are only going in 1 hour increments

high idle should not be a glow plug issue - its all in the tune

When you lean the low end needle it increases the idle and richening lowers the idle and your right its nothing the idle will do.

Hope this helps!


Oh I keep my fuel in my shed over the winter and never had bad nitro it always come back to tuning
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Old 06-26-2009, 12:39 PM   #15
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Token, Your suggestion was just a minute late! I didn't read you post, but I did exactly what you mentioned, and it worked! I'm so stoked right now. It's still running a little fat, but it's fast as hell!! This is my first 1/8 and i'm in love already. Thanks for the suggestions everyone, but the problem is solved! Now to get some practice before the race tomorrow.

BTW I'm running at a rich 205 degrees.
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