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#1
03-11-2009, 11:14 PM
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Re: carburetor jets
Vac. sounds right considering your engine's stats.
I'm surprised it wants a 3 jet spread in the back--I'm assuming the 163 still has the plenum divider, correct? Have you tried Maxjets? Maxjets I've yet to try these myself, but reliable resources say they're considerably tighter in flow tolerance than standard jets. 
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#2
03-12-2009, 12:08 AM
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Re: carburetor jets
Haven't tried the new jets yet...I was always worried about having to start over on my settings, as the LM1 said I was dead nuts on last time I hooked it up...but, I *totally* understand the concept, and feel I've ran into that problem before.
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#3
03-12-2009, 01:28 AM
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Re: carburetor jets
Is your current jetting based on dyno tuning or track results?
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#4
03-12-2009, 06:09 AM
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Re: carburetor jets
Track results, naturally! Other than the standard plug checking [and now LM-1 when I remember to take it!], I basically watch my MPH, and check the DA every once in a while and make a note...
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#5
03-12-2009, 07:22 AM
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Re: carburetor jets
That's what I figured. Seldom does optimal dyno jetting = optimal track results
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