who designed the Z400 engine arctic cat or yoshi?
 

someone told me (and it is written in an issue of 4 wheel action that arctic cat designed the engine) i say yoshi did who really knows

who designed the Z400 engine arctic cat or yoshi?
 

it came from the drz dirtbike. suzuki and yoshi built it.

who designed the Z400 engine arctic cat or yoshi?
 

Dunerunner is right, Suzuki and yosh worked on it together and it came out in 2000 in the DRZ400 line-up