2015 Harley-Davidson XG750: jerking or lurching

Filed Aug 10, 2015 · Engine · 98 miles · PA

"with roughly .9 gallons of fuel in tank, when leaving a full stop, vehicle pauses hard on acceleration. Probable cause is fuel starvation caused by fuel flowing back in the tank, away from the front-located fuel pump, starving efi system of gasoline. As fuel moves forward after a brief pause in forward momentum, the pump has access to the fuel and the bike suddenly lurches forward. This happens multiple times as the fuel in tank travels forward and aft. Extremely unsafe condition at low speeds, especially at intersections when this is most likely to occur." indident took place on my way home "8/5/15" from picking up the new bike. I called the dealer, and they said they never heard of this issue. They said they would return my call, but they never did.

Filed Jul 23, 2015 · Engine · 300 miles · SC

When the fuel tank is not completely full the engine lurches or bucks. These movements are violent and unexpected and can cause you to crash or put you in danger because it is starved for fuel and will not get out of the way of normal traffic flow. This issue happens before the low fuel light is illuminated and usually still has 1/3 of the fuel remaining. I have contacted harley and made them aware but they do not have a fix as of now.

Filed Jul 9, 2015 · Fuel system · 996 miles · CA

**this is my second complaint about this** the issue happened the first time at 86 miles on the motorcycle. It was fixed at about 500 miles. Now at 996 miles it's back. The issue happens when taking off from a stop. The motorcycle almost dies because it isn't getting fuel, then it gets fuel and lurches forward. There is still over a gallon of fuel in the tank and the low fuel light was not on at the time. I almost crashed and could have been hurt or killed by the traffic coming up behind me. The first time they replaced the fuel pump and I was told that it's a faulty design and the pickup comes off causing it to not pickup fuel properly. It appears the replacement came apart also. Is harley going to be pushed to redesign this before or after someone is hurt or killed?...updated 09/22/15 *bf updated 11/08/2017

Filed Jun 8, 2015 · Fuel system · 130 miles · CA

This is my second complaint, original complaint # 10721274. After filing the complaint, I took the vehicle to the dealer to be fixed 5/25/15 (miles in 106). I was notified by the dealer that they spoke to harley-tech support and the dealer was advised to replace the fuel pump (ref#248840 rep:john). I received notification the bike was ready to be picked up on 6/4/2015 ( all issues fixed- fuel pump [lag and leap condition] and a neutral switch for the indicator to work properly), I was not able to pick the bike up until today 6/7/2015. The vehicle out mileage was 126, then I drove for a short trip maybe 2 miles stopped / parked the vehicle for 2 hrs. I then started driving again, with in a couple of minutes I felt the bike stumble after starting from a red light (1st gear) and then again in 2nd gear. I continued to drive a little further and then from another stop the vehicle constantly surged/lurch and leap condition constantly through 1st and 2nd gear and finally stalled out ,also no low fuel indicator light on. The vehicle was towed back to the dealership with a mileage of 131 miles. So, within 5 miles and probably 15 minutes of driving the vehicle, it has failed again. I understand there is an investigation in place and that harley-davidson has knowledge of this issue, problem is their recommended fix is not working

Filed Jun 6, 2015 · Fuel system · 950 miles · NV

So this is not the first time this happened but I just thought it was user error and then I started paying more attention and it only happens when fuel is low. The most recent time was the worst I was on the freeway when the fiuel light turns on so I immediately got off to fuel up. And every time I would take off from a stop it work thrust and jerk me like power completely stopped and then it was rapidly added again and it was definitely not a pleasant feeling ecery time I fought the bike not to throw me or to fall over specially since one of the time it happened during a turn. I then started doing some research and I ran into this siie and for the looks of it I am not the only one experiencing this. Also like I mentioned this has happened since I purchased my bike at the beginning of april 2015

Filed Jun 2, 2015 · Fuel system · 60 miles · CA

When the bike has less than 2 gallons in the tank, the bike would lag every time I started from a stop, then lurch forward, then lag & lurch. The bike has stalled several times in the middle of intersections. Luckily I'm an experienced rider and didn't crash on these incidents. The bike will literally lag, then leap (small wheelie) then repeat. Very dangerous! About 4-5 miles later my low-fuel indicator came on. After refueling the problem went away, it took less than 2 gallons to fill up even though my tank is 3.5 gallons. At 120 miles, I was going around 30 MPH in a right hand curve and the bike started to stall. Again, this is before a low-fuel indicator. I filled up with exactly 2 gallons, meaning I had 1.5 gallons in the tank. This kind of lag/leap problem will get someone killed and must be addressed. My dealer told me it's a problem with the low-fuel indicator. That is not the problem. Please recall these bikes before someone gets killed.

Filed May 28, 2015 · Fuel system · 20 miles · MO

With roughly .9 gallons of fuel in tank, when leaving a full stop, vehicle pauses hard on acceleration. Probable cause is fuel starvation caused by fuel flowing back in the tank, away from the front-located fuel pump, starving efi system of gasoline. As fuel moves forward after a brief pause in forward momentum, the pump has access to the fuel and the bike suddenly lurches forward. This happens multiple times as the fuel in tank travels forward and aft. Extremely unsafe condition at low speeds, especially at intersections when this is most likely to occur. I have to be excessively cautious to make sure there is over a half a tank of gas to keep this from occuring. The last time it occured, the low-fuel light had not even come on yet, (light is said to come on at .8 gallon left). This is extremly unsafe.

Filed May 26, 2015 · Engine, Fuel system · 120 miles · VA

On my very first tank of gas the bike died at around 120 miles on the trip odometer while accelerating away from a stop light. It was a die and lurch that I have recently read others have experienced. I was changing gears from 1st to 2nd and the bike did a wheelie just high enough for my child to slide off the seat and onto the rear fender. I checked the gas and there was plenty to slosh around and no low fuel light. Filling up the tank stopped the problem. I asked the dealer to fix the no low fuel light problem when they opened 3 days later but in that time I used another tank of fuel and the same die and lurch around 130 miles on the trip odometer. After around 4 weeks of waiting the h-d service technician tells me that he flashed the computer and the problem is fixed. I fill up the tank on the way home and reset the trip odometer. The next day (yesterday) I experience the same die and lurch around 130 miles. The low fuel light has never come on on this bike. Yes, it lights up on the self-diagnostic when I turn the key on but it has never come on for low fuel and I get the die and lurch around 120 to 130 miles every time. I believe that someone used to a smaller motorcycle would get hurt to easily with this lurch thing.

Filed May 11, 2015 · Engine, Fuel system · 350 miles · LA

"with roughly .9 gallons of fuel in tank, when leaving a full stop, vehicle pauses hard on acceleration. Probable cause is fuel starvation caused by fuel flowing back in the tank, away from the front-located fuel pump, starving efi system of gasoline. As fuel moves forward after a brief pause in forward momentum, the pump has access to the fuel and the bike suddenly lurches forward. This happens multiple times as the fuel in tank travels forward and aft. Extremely unsafe condition at low speeds, especially at intersections when this is most likely to occur."

Filed May 7, 2015 · Fuel system · 90 miles · CA

Vehicle was lurching and bucking while driving from apparent fuel starvation. The low fuel light had just come on and there should have been more than enough fuel to continue on for a several miles.

Filed May 3, 2015 · Acceleration, Fuel system · 460 miles · TX

Motorcycle lurches and chokes when in 1st and 2nd gear leaving a stop light. Tank was a little more than half full. Filled up tank and it stopped the issue. Gas tank is not empty enough to cause low gas indicator to come on so unaware when the lurching will happen. I have not notified harley yet because it is sunday and I will have to wait til tuesday to contact the dealer.

Filed Mar 12, 2015 · 15 miles · PA

With roughly .9 gallons of fuel in tank, when leaving a full stop, vehicle pauses hard on acceleration. Probable cause is fuel starvation caused by fuel flowing back in the tank, away from the front-located fuel pump, starving efi system of gasoline. As fuel moves forward after a brief pause in forward momentum, the pump has access to the fuel and the bike suddenly lurches forward. This happens multiple times as the fuel in tank travels forward and aft. Extremely unsafe condition at low speeds, especially at intersections when this is most likely to occur.