Hi i am fixing 2 buy a z400 and i MX race i am wondering are there any major problems with these bikes?? its going 2 have rolldesign A-arms with Works or Elka shocks stuff like that +4 Axle.... What im wondering is engine problems?? How reliable are they?? frame problems??? thanks

 

Come on people are there or arnt there??

 

hi i have a kfx 400 which its the same bike.i did have a problem with having bad gas in it when i bought it .outside of that i have not had any trouble out of mine what so ever as far as the engine gos. i have heard people talk about some frame problems. my cousin has a z 400 and hasnt had any problems with it either. i think they are awesome quads. hope this helps

 

the 03 had problems with the frame cracking at the shock mounts.and the fuel petcock. I think it was the 05 model had a problem with the clutch cover leaking water. I haven't had any problems with mine yet, so I quess i'm lucky so far