Question about 2003 Harley Davidson XL 1200 C Sportster Custom
The bike was running fine then I lost power. No power and back fires unless I have the enricher wide open.
Posted by Anonymous on
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Posted on Jan 02, 2017
not running for a year! You have a varnish buildup in the low end circuit of the carb. You will need to remove the carb and do a full teardown of the carb to properly rectify this problem. SOMETIMES we are able to free up the passages by putting SEA FOAM cleaner in the tank , fill her up with fresh fuel and ride through the tank and it will clear up. SEA FOAM can be purchased at an auto parts store and is sometimes very effective. 1/4 cup to full tank fuel.
Posted on Jul 14, 2009
SOURCE: 1999 sportster lost power
it might be excessive piston slap,=pistons too loose in bore so loosing compresion.ignition timing too advanced so pinking.carberation too weak,
Posted on Jul 03, 2010
Check your spark plugs for damage at the electrodes; state of plug wires; coil and ground connections... Could also be lean air/fuel mix and/or low float level causing it to run lean.
Posted on Jun 08, 2011
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