DT400 reed valve fitment

tdhorne · Posted: Sun Dec 28, 2008 9:35 am Post subject: DT400 reed valve fitment

I have a '77 DT400 that needs a new reed valve. I found and bought one for a '78 model (Have not received it yet) According to a Yamaha web site the '77 & '78 have different part #'s.I'm replacing the cage and reed assembly. Both are four reed set-ups though. My question is should this one for the '78 work in the '77. Thanks for any help.

jayel · Posted: Mon Dec 29, 2008 6:47 am Post subject:

think you answered your own question, if yamaha says it won't fit it won't fit .... if you needed a new piston would you ask for any piston as long it's for a yamaha and expect it to fit?

tdhorne · Posted: Mon Dec 29, 2008 8:28 am Post subject:

Thanks for the reply,but I was hoping to hear from someone who had done this Very Happy

. It's been my experience that P#'s can change from model years and the part remain the same. Looking athe the fiche all the related parts are the same (cylinder, reeds,stoppers and intake). The only part # that is different is the assembly. I guess I'll have to wait and see when it gets here. I may have a nice reed assembly to pass on Smile

Thanks again.