Question about Harley Davidson FLSTC Heritage Softail Classic

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Is it common for the first 8 or 10 inches.

I noticed the other day that the first 8 to 10 of the exhaust pipes have started to blue is this common or is it a sign that the bike may need a re-tune. Bike is running fine an there is no blueing on the mufflers. Bike has Bub slip ons and a power commander. Map was loader my dealer that I got the commander from.

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Common thats why so many companies make stuff to clean it

Posted on Dec 31, 2009

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Blue pipes is a sign of lean running. how does the bike run? when adding a/m performance items end result and rideabilty is key. You will always have some blueing appear; if the bike runs like caca and there is blueing take it for retune; if its running strong and not too hot, ride on! It all depends on the performance; And once they're blue, they're blue!

Posted on Jul 07, 2009

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Bluing does mean lean, but you have to take into effect that HD 's right out of the crate are running at 16.5 : 1 air fuel ratio, which is way lean ( they do it for emissions ) You could richen up the power commander a little, You could take it to a dealer that is an authorized Power Commander Tuning Link Center. They can create a map from scratch for your bike, specifically to the way your particular motor combo breathes. But you have to understand that by richening up the mix, to stop the lean condition, you're going to sacrifice fuel economy, because you will be using gas to cool the motor.

Posted on Jun 12, 2009

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