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Old May 2, 2009 | 05:48 PM
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Default PcIII
I have an 2001 Ultra Classic and installed a PCIII fuel injection module and replaced the pipes with dresser dual and vance & himes ovals. Also I've changed out the air intake with screaming eagle stage 1 kit. My problem is I've downloaded the mapping for this setup and the bike pops and backfires when the throttles let off. Should I have it dyno'd and spend the money or is that the way it's going to run with those changes anyhow, dyno'd or not? Any suggestions would be helpful. Thanks.

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Old May 2, 2009 | 07:10 PM
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Did the download come directly from Dynojet? You can tweak the parameters yourself if you have the savvy?

If not, then dyno (although not guaranteed to eliminate decel pop 100%).
 
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Old May 2, 2009 | 07:32 PM
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A good dyno tuner can fine tune the map and get the lean pop out. And yes you should do it. Its way cheaper than motor repairs.
 
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Old May 2, 2009 | 07:36 PM
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check the pipes and intake for leaks a small leak will cause a pop.
 
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