Question about Harley Davidson FLSTF Fat boy Motorcycles
If it's a carburated engine, check the vacuum operated petcock for full fuel flow. These things are notorious for giving problems. I've replaced mine with a high quality manual operated petcock. Pingle is a good one but pricey.
Remove both hoses, the large one and small one. You'll need a hand operated vacuum pump to apply vacuum to the backside of the petcock. Apply the vacuum and look for full fuel flow from the petcock.
It could also be a bad fuel cap. The vent could be allowing a vacuum to build in the tank as the engine uses the fuel and slowing down the fuel flow. Loosen, but take the cap completely off or you'll be wearing a couple of dollars worth of gasoline, the cap and ride for ways to see if this helps.
Posted on Aug 06, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Mar 12, 2014 | Harley Davidson XL 1200 C Sportster Custom...
Apr 18, 2012 | Craftsman Garden
Jan 16, 2011 | Harley Davidson FLHR-FLHRI Road king...
Sep 13, 2010 | 2005 Yamaha V Star 1100 Classic
Jun 28, 2017 | Dodge Durango Cars & Trucks
Apr 08, 2010 | 1989 kawasaki ZX 10
Nov 01, 2009 | 2004 Factory bike Chrono SM 250
Jun 25, 2009 | 1995 Chevrolet Caprice Classic
Nov 10, 2008 | 2003 Triumph Bonneville America
242 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: