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Old 11-22-2008, 07:58 PM   #1
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Default OS speed factory settings

I just bought a package deal on here from a member. A Jammin X2 with a OS speed. I am going to run it tommorow for the first time and am looking for the factory setting on the engine. I am sure that my settings are going to be different from the guy's in california (I am at 3,500ft.), and I have no idea what fuel he broke this in on also. Any help would be appriciated. Also, the engine has the 8mm. venturi, is this a good one to run with the truggy? It came with a Jammin 4 pipe, and I will be running Byrons 30% race fuel.
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Old 11-22-2008, 08:08 PM   #2
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These are the stock settings and prove to be very rich where I live (550ft) At 3,500 I'd imagine even richer:
HSN: 3.5 turns
LSN: 5.25 turns
Mid: Flush with carb body

8mm is good to start with. I generally run 6.5-7mm to stretch out run time over 10 minutes for fewer pit stops w/2060 pipe.
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Old 11-23-2008, 07:35 AM   #3
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Thanks for the info. We will see how it goes.
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Old 11-23-2008, 08:25 AM   #4
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My speed motor with a 2060 pipe on byrons 30; hsn 2 1/4 out, mid flush to 1/2 turn in, lsn 1 turn in from flush. Get the low speed as lean as you can while closing the gap the carb slide has @ idle. Just find a good balance.
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Old 11-23-2008, 08:05 PM   #5
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The speed ran good today. I have ran alot of engines, but I must say that this speed is by far the most powerful .21 I have ever run. I reminds me of a .28. I was 1\4 throttle to 1\2 throttle all day on our tight track. I am running a jp-4 on it because that is what was sold with it, it seemed like it worked well.
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Old 11-23-2008, 09:11 PM   #6
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Just think how nice that motor would feel in a Mugen.
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