2009 Yamaha Redundant Zuma: engine stalls while driving

Filed Aug 27, 2012 · Fuel system · 1,024 miles · IN

After driving for 30 minutes and parking vehicle refused to restart for 20 minutes. After restart vehicle stalled and again refused to restart.

Filed Aug 10, 2011 · Fuel system · 981 miles · MN

2009 yamaha 125 scooter stalls after warmed up. Fuel pump quits and scooter will not restart until sitting several hours.

Filed Jul 17, 2011 · Fuel system · 840 miles · FL

My 2009 yamaha wy125yl has begun to stall and will not restart. I view this as a serious safety issue. Pushing a motorcycle from a busy intersection with fast moving traffic is something that would not care to repeat. After a brief internet search I was quickly able to find numerous websites full of complaints with the same description. "motorcycle stalling, and will not restart in warm ambient conditions".

Filed Jun 20, 2011 · Fuel system · 4,587 miles · GA

My zuma 125 was running fine for about a mile when it suddenly stalled out and would not re-start. My local bike mechanic said I have a bad fuel pump. Have not rode scooter since then becouse unable to get a fuel pump. There was a recall overseas and should be one here in the u.s.

Filed Aug 1, 2010 · Fuel system · 2,170 miles · MA

While waiting at a red light my scooter just stalled out and would not restart. It was a hot day and after letting my scooter cool for an hour or so it started back up. Seems every time it is 90+ degrees out the scooters fuel pump will fail and strand me in the middle of traffic. As of this writing, yamaha has not acknowledged that a problem exists even though I have been hearing of numerous reports about this exact problem from other zuma 125 riders.

Filed Jul 30, 2010 · Fuel system · 800 miles · GA

My zuma 125 scooter with around 800 miles stalled while I was idling in a fast food drive-thru on a day when the temperature was over 90 f and would not restart. I was able to restart after letting the scooter cool down for about 20 minutes in the shade. This same issue occurred again on another hot day around 95 f while I was at a stop light on a busy road. After pushing my scooter to a nearby gas station I was able to restart after cooling down the scooter for about 20 minutes in the shade. I am now unable to start or keep my scooter running when in direct sunlight on a hot day and have had no problems on cooler days or in the evening. I have called local yamaha dealers and their primary customer service number only to be told that there are no known issues. After checking online forums I have discovered that there is a common issue with the fuel pump, which yamaha has since redesigned, yet still does not recognize as the safety issue that it is. My fuel pump issue still exists and I am unable to ride my scooter during the day. The fuel pumps are also currently on backorder due to the common failures.

Filed Jul 29, 2010 · Fuel system · 6,400 miles · TX

The vehicle will start up most of the time after being parked for extended periods of time, but as the vehicle is being used regularly during the hottest part of the day it would stall while at a low speed or idle. The problem gets worse over time, and eventually it will stall while at full throttle and will not restart after several attempts. The vehicle has stalled on me once while on a 45mph street and once on an interstate highway in the slow lane while at greater than 55mph. On the later occasion I was stranded on the side of the highway and had to push the vehicle along the side of the road back to the dealership during the night after several failed attempts to start it up. I have also had the vehicle stall in the middle of a busy intersection during heavy traffic while taking a left hand turn. I had to walk the vehicle to the side of the road to prevent an accident. I have since taken the vehicle to the service shop for warranty repair on multiple occasions to solve this problem. They have replaced the fuel pump, throttle body, battery, ecu, as well as regular maintenance to try to resolve this problem. The problem persists as of this complaint as the service shop has not successfully repaired the vehicle. I do not have possession of the old parts that were replaced under warranty. The vehicle is a 2009 yamaha zuma 125 scooter with approximately 6400miles.

Filed Jul 27, 2010 · Fuel system · 1,237 miles · KS

Vehicle's engine stalls while riding, or at idle, under normal operating conditions. This occurs most often when outside air temperature is above 85 degrees fahrenheit. The first time the vehicle stalled ( on or around 5/15/2010)I was stopped at an intersection and was able to restart the vehicle immediately. On or around 6/18/2010 the vehicle stalled again while pulling away from a stop at a left turn signal. The vehicle would not restart and I had to push it across the intersection to an adjacent parking lot. I was able to re-start the vehicle after letting it sit for approximately 5 minutes. The third time the vehicle stalled (on or around 6/28/2010) I was pulling away from a stop at an intersection of a major highway. The vehicle would not re-start, and I had to push it across two lanes of traffic to reach a sidewalk. After waiting approximately five minutes the scooter would not restart, so I proceeded to push it the 1/4 mile to my home. After pushing it for three blocks I attempted to restart it, it started, idled poorly, and stalled again without my having applied any throttle. I took the vehicle to my local yamaha service center the following day. They rode and performed diagnostics on the vehicle, determining, on 7/22/2010, that the fuel pump was faulty after having the vehicle stall while riding in traffic ( the vehicle has been at that facility since 6/29/2010, and is still in their possession) . I am now awaiting a new fuel pump to arrive from yamaha.