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Old 05-21-2009, 11:02 AM   #1
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Default OFNA 32 motor (again)

well i got her started up and running finally...

I just have some questions about tuning, or being pointed in the right direction.

Let me see if i got this right...




The far left (brass tube) is the HSN (high speed needle) right?
Right below that to the right, next to the tube nipple, is another needle, which im guessing is the LSN (low speed needle).
The other brass needle, that you can actually see in the picture (center), is the idle needle?

Am I correct?

So the car runs, and fires up, but when i give it gas it revs up but nothing seem to happen
it slowly accelrates and seem to be burning up a ton of fuel. When i close the HSN (at least what i think is the HSN) it seems to burn less fuel, but then cuts off...
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Old 05-21-2009, 11:07 AM   #2
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Quote:
Originally Posted by agarabaghi View Post
well i got her started up and running finally...

I just have some questions about tuning, or being pointed in the right direction.

Let me see if i got this right...




The far left (brass tube) is the HSN (high speed needle) right?
Right below that to the right, next to the tube nipple, is another needle, which im guessing is the LSN (low speed needle).
The other brass needle, that you can actually see in the picture (center), is the idle needle?

Am I correct?

So the car runs, and fires up, but when i give it gas it revs up but nothing seem to happen
it slowly accelrates and seem to be burning up a ton of fuel. When i close the HSN (at least what i think is the HSN) it seems to burn less fuel, but then cuts off...
The one next to the fuel nipple is the idle speed needle and the brass one you can see is the lsn
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Old 05-21-2009, 11:10 AM   #3
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Ok, gotcha... the the idle speed needs to be flush with the case (from what ive read), and the HSN needs to be 3.5 turns from closed.....


does this sound right?
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Old 05-21-2009, 11:13 AM   #4
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HSN sounds right
set the idle speed needle so that the slide of the carb has a 1mm gap when closed
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Old 05-21-2009, 11:23 AM   #5
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In order to see that i would need to remove the air filter correct?

And just push it closed and adjust the needle till i see a small gap right?
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Old 05-21-2009, 11:24 AM   #6
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In order to see that i would need to remove the air filter correct?

And just push it closed and adjust the needle till i see a small gap right?
yup
make sure your servo is closing it fully.
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Old 05-21-2009, 11:49 AM   #7
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like this...?
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OFNA 32 motor (again)-photo.jpg  
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Old 05-21-2009, 12:03 PM   #8
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well now my 15yr old drill died to so cant start it. I did what you said and adjust it so it was closed, then opened it about 1mm with the idle needle. I then adjust the HSN to 3.5 turns from closed like the manual says...

I guess i have to go buy a drill now...
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OFNA 32 motor (again)-photo2.jpg   OFNA 32 motor (again)-photo3.jpg  
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Old 05-21-2009, 01:15 PM   #9
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success!

car runs great... thanks a lot guys i really appreciate all the help.... now just some lil tunes here and there and shes been running pretty decently...
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