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Posted by wayne
 - August 13, 2015, 20:54:35 PM

Hello,been a member for awhile but haven't posted anything till now.I enjoy everyones input and I could use some help.I have a 2002 1500 drifter which I bought about a year ago and have enjoyed riding so much that I sold my Harley.It has about 12,000 miles on it which I have put on about 2,000 miles.Bike ran great till I got home from a recent trip and it started surging and backfiring when I hold a steady throttle.It idles fine and you can run it through the gears hard and it doesn't miss a beat but if I'm riding at a steady MPH and steady RPM it surges and backfires.I have changed the plugs which were a nice tan color,air filter is clean, spark plug wires are all good,I changed the exhaust gaskets just to make sure they were not the problem. Bike has Cobra exhaust with no after market computer.I have added Seafoam to the gas but the problem still exists.Bike is immaculate and been well taken care of and ran excellent for the 2,000 mi I put on it,would appreciate any help as i'm out of ideas.

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