Question about 2004 Harley Davidson FLSTC - FLSTCI Heritage Softail Classic
Odds are that you need to richen up your carb. You said that you can smell that the mixture is very rich. This is true if you're using the enricher. The enricher is designed to be very rich and it will foul plugs if you allow it to run too long. I usually run it only long enough to allow me to set the throttle lock and keep the bike running at a high idle without the enricher.
To actually remedy the problem and shorten the time you have to run the enricher, you probably need to enriched the low speed jet. The carb comes jetted very lean from the factory and usually does a lot of coughing and spitting out of the carb. If your slow speed jet is a #45, you need to go to either a #48 or a #50 slow jet.
Posted on Aug 23, 2010
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Posted on Jan 02, 2017
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