2015 Harley-Davidson XG750: sudden unintended acceleration

Filed Jul 31, 2015 · Fuel system · 98 miles · IL

I purchased my harley davidson xg750 on july 23rd and picked it up on july 24 with zero miles on the odometer. On sunday july 26 the fuel light came on with approximately 98 miles on the odometer. The next day july 27 while riding the xg750 it began to surge forward and stall while accelerating from a stop in first gear. It got progressively worse 2 more times when accelerating from a stop. I drove to a gas station and filled the tank up with shell 87 octane fuel. It took 1.819 gallons. Odometer reading was 102 miles. On july 30 with 166 miles on the odometer the fuel light came on while in route to work. After work on my way to a harley davidson service center. The gx750 began to stall and accelerate from a stop in first gear. I checked the fuel tank and it was almost full. The gx750 continued to stall and accelerate with out using the throttle. It started to progressively get worse and shut off at least 10 times. I was in heavy traffic and would stall in the middle of the intersections forcing cars to swerve around me. I made it to the harley service center with 206 miles on the odometer.

Filed Jun 16, 2015 · Fuel system · 292 miles · WV

I was riding my bike home from work on 6/1/2015 and have continued to notice rough throttle response which is something ive experienced since I purchased it. The issue did seem to be a little worse than usual though when leaving the parking lot at work. I think the tripmeter was at about 85 miles or so when I left. As im riding home, the low fuel light never came on and was ridding great while in 3rd gear and up. Starting from a stop light was jumpy though but again, something ive continued to experience since bringing the bike home and not sure if it was normal or not. When close to my house, which is at the top of a hill, I was riding up the hill in first gear which I always have to do since its pretty steep. About half way up the hill the bike felt like it was going to stall which made me lean forward a bit due to losing some momentum. Then the bike surged forward which almost made me do a wheelie. I really had to work the clutch to keep the bike from getting away from me. During this time though, the low fuel light came on. The bike continued to lose power and surge until I finally made it to the top of the hill where my house is. The tripmeter then read 103.6 miles with the odometer showing 292 total miles. The bike has been to the dealership for over a week and the last update I received was that the mechanic couldn't find anything wrong with it and that the factory said to fill it up with gas and if it happens again, to bring it back for repair. I said that I'm not comfortable riding the bike until it's fixed. I also said that if the bike is low on gas, it will be easy to recreate the issue. Unfortunately, I had to put gas in it to ride it to the dealership. He said he will have the mechanic take another look.

Filed May 27, 2015 · Fuel system · 50 miles · OR

If the vehicle's fuel tank level is approx. Half or lower, the vehicle may abruptly stall and surge forward. The lower the fuel level is, the more often and abruptly the stall and surge is, and can happen during normal driving conditions, especially up an incline. This happens before the low fuel indicator illuminates. This behaviour can easily cause an accident or fatality.

Filed May 19, 2015 · Fuel system · 483 miles · PA · crash

While pulling out of a parking spot my bike stalled and suddenly surged forward,I lost my balance and dropped it in the lot. I asked my dealer about people complaining about this problem and they habven't heard of it but I looked it up and apparently alot of people have the same problem.I am just glad it wasn't in traffic and I have crash bars. My low fuel light was not on and I had a half a tank of gas so my guess is something is flawed with the fuel pump. This is a very serious and dangerous problem!!! It needs to be recalled and they shouldn't sell anymore until they check this lag and leap issue.

Filed May 12, 2015 · Fuel system · 46 miles · FL

Intermittent lag-and-leap/surge-and-buck issues. I felt my motorcycle quickly lose power and shortly after lunge forward quickly and unexpectedly. Each time this problem has occurred, I have had approximately 1 gallon of fuel left in my tank or slightly less.

Filed May 12, 2015 · Fuel system · 540 miles · GA

When I took off from a light in traffic, taking off in first gear, after I let the clutch out fully, it hesitated as if it were out of fuel. I was lunged forward from the sudden loss of power. After that, before I could reduce the throttle position, the bike lunged forward almost throwing me off the back. This cycle continued a few times like a bucking bronco. The people around must have thought I was an experienced rider, however this is not the case, I have ridden for many years. It was as if it was starving for fuel when I took off, then suddenly the fuel flow was returned. My low fuel light was not on, and my trip meter since my initial fill-up was at 90 miles. I immediately went to fill it up with fuel. Once it was full, the problem went away. However, the week my trip meter hit 90 miles again. The same thing happened as before. This is the second time I have been nearly thrown off of the bike. Each time a trip to the station to get about 2.6 gallons of fuel fills it up, and it is fine for another 90 miles. I'm not sure why there is a low fuel light, I could never ride it until that comes on. And, I would expect to be able to range more than 90 miles with 3.5 gallons of fuel. This seems to be a design problem that I feel is dangerous, especially for inexperienced riders.

Filed May 10, 2015 · Fuel system · 112 miles · TX

Starting with a full tank of gas my wife drove her brand new xg750 for approximately 100 miles. The first issue occured when she was taking off from an intersection, the bike stalled out, in the middle of the intersection. With her being a new rider, she attributed it to her doing something wrong. At the very next intersection the issue happened again, except the bike lunged forward after the stall this time. She then promptly honked her horn to let me know there was an issue. We pulled over, I got on the xg750 to see what the deal was. As I took off, the bike stuttered but did not stall. I rode it down one block and then turned around. As I started the turn the bike stuttered again and almost stalled. The idle of the bike was very erratic, stuttering up and down. The problem seemed to be getting worse the more the bike was driven. My wife got back on the xg750 and we decided to head back to the house, as there was something wrong with her xg750. We made it about 5 more miles when her xg750 stalled out on the highway. She coasted to the shoulder and tried to start the bike 2 or 3 times until I arrived. Mind you, the "low fuel" light was not on, nor did it ever come one. The motorcycle has since been taken back to the dealer. For a bike that is marketed as a "beginner" bike, this is a malfunction that has the potential for causing fatalities, as the issue happens on curves, or under situations where the rider needs to accelerate, but cant due to the fuel system malfunctioning. I will be exploring the option of returning the bike to the dealer, as I don't want my wife riding a "beginner" motorcycle that has the potential to cause her to crash or worse, kill her.

Filed Apr 27, 2015 · Fuel system · 182 miles · WI

While driving my 2015 harley-davidson street 750 yesterday, and a couple times in the past, upon accelerating I felt my motorcycle quickly lose power and shortly after lunge forward quickly and unexpectedly. Each time this problem has occurred, I have had approximately 1 gallon of fuel left in my tank or slightly less. The first time this happened, I was nearly thrown backwards off my bike because of the rapid forward acceleration, to the point where my hands actually came off the grips for a split second. I shrugged it off and chalked it up to being a new rider but then when happening again I was concerned. I experienced the same problem again yesterday multiple times, and each time upon refueling, the problem was fixed.

Filed Apr 25, 2015 · Acceleration, Fuel system · 90 miles · TX

As I entered an intersection in 1st gear, the motorcycle failed to accelerate and then surged forward. I had just gotten my motorcycle endorsement and had very little riding experience. Fortunately, I was able to maintain control of the motorcycle. Another incident happened soon after as I was taking a right hand curve. I was in second gear and slowed as I approached the right hand curve. I attempted to accelerate through the curve and the motorcycle lagged and then suddenly leaped forward, causing me to fishtail and almost run off of the road. Fortunately, I was able to maintain control and prevent a crash. On 1/7/2015, the vehicle was driven to the dealer with approximately 120 miles on it for an inspection of the problem. The dealer told me that they were able to reproduce the problem; however, I was merely low on fuel. I told the dealer that the low fuel light indicator never activated. They filled the tank with gas and the problem did not reoccur. They were also able to get the low fuel light indicator to activate at approximately 0.8 of a gallon. They also put the vehicle on the dyno and were not able to reproduce the problem when fuel was present. The dealer told me to keep a gallon of gas in the tank at all times to keep the fuel pump wet. On 4/19/2015, the vehicle exhibited lag and leap in first through fourth gears and the engine died multiple times on a major thoroughfare. I was under the impression that I was low on fuel, so I tried to make a u-turn at an intersection into a gas station. I was unable to get the vehicle to safely engage in 1st gear without surging and/or dying, so I pushed the bike to the nearby fuel pump. I was shocked to see that I had sufficient fuel and added 1.2 gallons to the 3.5 gallon tank. After fueling, the vehicle was sputtering while idling. I drove home at less than 30 MPH lagging and leaping the whole way with no crash.