NHTSA Complaint #10991592 — 2012 YAMAHA XTZ12

VEHICLE INTERMITTANTLY WILL NOT IDLE, STALLS OUT WHEN DECELERATING TO A STOP, WHEN IN BETWEEN GEARS, WHEN RESTARTED, WILL IDLE BELOW 700 RPM AND STALLS REPEATEDLY. AT OTHER TIMES, IT WILL IDLE AT 3000 RPMS, SOMETIMES BACK FIRING, WHEN CLUTCH IS PULLED IN THE RPMS WILL DROP BUT MOST TIMES, IT'S A ROUGH IDLE, BOUNCING BETWEEN 700 AND 1300 RPM'S. WHEN IT IS COLD, IT OFTEN IDLES FINE UNTIL IT GETS WARM... THIS HAS BEEN AN ONGOING PROBLEM SINCE NEW. IT HAS BEEN BROUGHT TO THE DEALER AND THEY COULD NOT RESOLVE THE PROBLEM...