My freind has a 2000 or 2002 400ex an says it has a 6 speed gearbox but Im not sure be cause all the new ones only have a 5 speed but have reverse too. Back to my question did the 400 ex ever have a six speed transmission

 

no no and no

 

Either your friend doesn't know what he has, or it's the extremely super secret limited edition that Honda never made.

If I were him, I'd never sell it.

If it's not, then I'll have to agree with sportszillasheex on this.

 

is the wireing harness different on the 2006 400ex than the 2004 400ex wireing harness.