Fuel tank breather hose causing problems
Misaligned set screw and short brake disc fasteners blamed
Frame failure could lead to collapsed suspension
Defect can cause stuck throttle on 70cc and 90cc models
Throttle can fail on KFX 50 and KFX 90
OEM says rear sprocket may fail
Bolts can break if installed incorrectly
Fire hazard affects more models
About 1,393 units included
