Age Old Question ? - VTXOA
  • 3 Post By Chicago-Spike
  • 1 Post By TennX
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post #1 of 4 (permalink) Old 06-15-2019, 07:08 PM Thread Starter
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Location: Central NY
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Age Old Question ?

I have an '03 Retro 1800. 8000 miles *** YES. 8,000. Just bought it last January. It has Hypercharger, PowerCommanderIII, opened up stock exhaust. I GET INSANELY LOUSY GAS MILEAGE / 20 MPG. I checked / re-set PowerCommander program - to no avail. ANY THOUGHTS ???
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post #2 of 4 (permalink) Old 06-16-2019, 10:47 AM
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Join Date: Nov 2003
Location: St Charles, IL.
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YES!! STOP RIDING IMMEDIATELY! Check your oil level I will bet you are overfilled and it reeks of fuel. The 2002-2003 models have a Fuel Pressure Regulator, or FPR , and these are a know fail item and when they fail, they allow too much fuel into the combustion chambers and the excess fuel washes down teh cylinder walls into the engine case thinning the oil and more than 1 engine has been destroyed by this. Change the FPR here are the instructions;

Once that is done, change the oil and ride around the block. Then change the oil again to be sure you got all the gasoline out of the engine case

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post #3 of 4 (permalink) Old 06-16-2019, 11:36 AM
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Join Date: Jul 2006
Location: Memphis,Tn.
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I dont know that much about 1800 but I do know listen to Spike....good luck OP....
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Phil...(72)”Nobody told me I die at the end”
2006 (bought new)...1300R Candy Black Cherry,darkside,foots mod.. ..
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post #4 of 4 (permalink) Old 06-16-2019, 12:06 PM
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Join Date: Aug 2007
Location: RGV. Texas, Former N.E. Ohio
Posts: 8,625
same story.. different decade...

2002-2003... FPR.

big change in 2004...

2005 VTX1800 F, type II, Silver Tribal, 88,000 Miles, Purchased Feb, 2005.
MTC clutch & springs.. K&N Air Filter. Garmin 2597 GPS.
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