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[Jeffytune]

Originally Posted by wilmoo13

Just got onto forum and have not read everything BUT I'm on the way to the Harley dealer that recommended the Fuelpak. '04 Heritage Softail with Sampson Big Guns 2 exhaust. Running hot (lean) and tons of popping. Eliminated popping and may not be running as lean BUT has intermittent power loss, like a cough or hesitation. Called V&H numerous times and they have done the try this, try that approach. They have no set solution for my exhaust, just flying by the seat of their pants. There is no way that I will ever get an optimum solution since the test mechanism is for me to try it and see if it works. How should I know what it is supposed to be like at optimum?

Hi.

I understand your frustration, but trying to diagnose anything over a phone or e-mail is very difficult to say the least, intermittents are the hardest, even when you have the bike there to test.

Ok, lets start with the basics, check the bikes ECU for codes, check cell 22 for any numbers it may have, check for exhaust leaks and Intake leaks, and finally, make sure it has the best fuel you can find, and these days, fuel quality is in the toilet.

If all this checks out, then I would get a standard two run dyno run done on the bike, and send the results to Vance and Hines for analysis.
Then they can see what the bike is doing.