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Old 06-05-2010, 04:13 PM   #1
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Default ofna .28 tuning help

car is stalling/shutting off when i get onto the throttle...
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Old 06-05-2010, 11:32 PM   #2
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It idles fine, i can drive it around slowly fine but when i get over a 1/4 throttle it stalls/shuts off. (all when i lift the model up at idle the wheels DONT spin...)
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Old 06-06-2010, 09:59 AM   #3
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anyone?
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Old 06-06-2010, 10:07 AM   #4
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Originally Posted by wantboost View Post
It idles fine, i can drive it around slowly fine but when i get over a 1/4 throttle it stalls/shuts off. (all when i lift the model up at idle the wheels DONT spin...)
You may have a weak plug take it off plug it to your igniter blow on the plug and if it flames out if so then it is weak. Or your settings are off take them back to stock settings 1/2 turn from flush on top and 1/4 turn in from flush will give you a rich setting and you will be able to tune it from there. if you are at idle and the wheels don't spin that is a good carb setting on the idle needle.
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Old 06-06-2010, 05:09 PM   #5
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the plug in it is a new picco/ofna med. I tried 3 diff plugs they all go out when u blow on them....

Do u have 1/2 turn in ? (1/2 turn needle is the larger/HSN needle?)
""1/2 turn from flush on top and 1/4 turn in from flush""
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Old 06-07-2010, 06:55 PM   #6
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the plug in it is a new picco/ofna med. I tried 3 diff plugs they all go out when u blow on them....

Do u have 1/2 turn in ? (1/2 turn needle is the larger/HSN needle?)
""1/2 turn from flush on top and 1/4 turn in from flush""
They should not blow out if your igniter has a good charge also sometimes they come weak from factory. Try this put the top needle flush then put in in 1 1/2 turns in from flush then put the bottom flush and turn it in 1/4 turn in see if that helps. Good luck let me know what haaped.
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Old 06-08-2010, 12:23 AM   #7
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Things I found out about this mill is it's got to be sealed up and the mid range is all over the place. Put a fatter o-ring in and take to the track with a six pack of cold one's for a good setting.
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Old 06-08-2010, 05:34 AM   #8
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Things I found out about this mill is it's got to be sealed up and the mid range is all over the place. Put a fatter o-ring in and take to the track with a six pack of cold one's for a good setting.
You read my mine LOl !!!!!!!!!!!!!!!!!!!!!!
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Old 06-08-2010, 05:42 AM   #9
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Sounds like it's too fat. Turn the HSN in about 15 minutes and see how it runs after that.
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Old 06-08-2010, 05:50 AM   #10
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Sounds like it's too fat. Turn the HSN in about 15 minutes and see how it runs after that.
Im not sure what his setting is but it sounds like he is really rich.
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Old 06-11-2010, 11:55 PM   #11
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ok i will try to re tune... i left my fuel in the garage and reached 90 outside think it went bad?
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Old 06-12-2010, 05:20 AM   #12
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ok i will try to re tune... i left my fuel in the garage and reached 90 outside think it went bad?
I was thinking where did you Go LOL!!!!!!!!!!!!!
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Old 06-12-2010, 05:21 AM   #13
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wantboost you should be fine!!!!!!!!!!!!!!!!!
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Old 09-12-2010, 03:32 PM   #14
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im confused why does OFNA say 3turins out for HSN and flush for LSN

For LSN flush is it with the inner sleeve or outer slever?
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Old 09-12-2010, 03:55 PM   #15
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Flush with inner.

Ofna's settings are way way rich.
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