What year are my two PW50's

[SHIFTmx]

Hey everyone, I was hoping someone would be able to tell me the year my pw50 bikes are that i just bought. Ive check online but getting conflicted info between 1981 or 1987.

Vin# 4x4-017830
Vin# 4x4-017840

Thanks!

 

[250mark1]

Had an 82 when I was kid and it as yellow as Your pics,I think the yellow color went to aprox 1986
And he 4x4 serial # may be in the 81-83 range nice thing is these bikes never really changed other than
minor appearance updates from 1981-2010

 

[J-Roc]

Definitely cool find! Dibs on when you sell them!

Judging by the numbers I would say 83-84. Educated guess. No date of mtg stamp?