Erratic Fuel Gauge and 20MPG
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Tourer
Joined: Oct 2007
Posts: 417
Likes: 4
From: Mission, Kansas
Erratic Fuel Gauge and 20MPG
I did my 20,000 mile service yesterday. Changed oil in all three holes. New Air Filter, plugs looked good.
I filled it up with gas andvtook it for a little 40 mile spin yesterday and everything seemed fine.
I got up this morning to go for a ride and a few miles in I looked at my gas gauge and it showed less than half a tank. I thought wtf, and when I stopped at a light, it went up to a little over a half tank. I looked at my remaining miles and it showed 120 miles left and I had only ridden 40.
I kept going and each time I stopped the gauge would go up and as soon as I took off, the gauge would drop up to 1/4 tank.
I thought maybe the gas gauge is just messed up, so I rode for awhile and stopped at a gas station to fill up to see what my mileage is. I had 80 on my trip meter and put 4 gallons in. 20 mpg.
Looked the bike over and didn't see anything wrong. I always spill oil on the regulator when I pull the oil filter, but had not problems before. Not sure if that had anything to do with it.
Rode 40 miles home and put less than a gallon back in the tank. Back to 40mpg. Anyone have any ideas for me? The bike ran and sounded fine during the whole ride.
I filled it up with gas andvtook it for a little 40 mile spin yesterday and everything seemed fine.
I got up this morning to go for a ride and a few miles in I looked at my gas gauge and it showed less than half a tank. I thought wtf, and when I stopped at a light, it went up to a little over a half tank. I looked at my remaining miles and it showed 120 miles left and I had only ridden 40.
I kept going and each time I stopped the gauge would go up and as soon as I took off, the gauge would drop up to 1/4 tank.
I thought maybe the gas gauge is just messed up, so I rode for awhile and stopped at a gas station to fill up to see what my mileage is. I had 80 on my trip meter and put 4 gallons in. 20 mpg.
Looked the bike over and didn't see anything wrong. I always spill oil on the regulator when I pull the oil filter, but had not problems before. Not sure if that had anything to do with it.
Rode 40 miles home and put less than a gallon back in the tank. Back to 40mpg. Anyone have any ideas for me? The bike ran and sounded fine during the whole ride.
Last edited by tt_ksu; Sep 26, 2010 at 01:17 PM.
Seasoned HDF Member
Joined: Jun 2006
Posts: 28,568
Likes: 3,957
From: Vermont
What year bike? If pre 08, those 61001-01 fuel filter kits can be a bear to get in if you don't know how to push on the spring when installing. You could have messed up the float/sender
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Tourer
Joined: Oct 2007
Posts: 417
Likes: 4
From: Mission, Kansas
Well, I ate lunch and decided to take the bike back out this afternoon and run a tank of gas through it. The bike still ran normally and my gas mileage was back around 40mpg again. I'm guessing I got a bad batch of gas or something. I'm going to keep an eye on it and see what happens.
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