Engine Year ID

Doubledown

New Member
Jun 28, 2022
7
1
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New to the forum and have done a bit of searching in hopes of finding my specific answer with no luck.

I would like to know what motor specific difference, if any, there are by model year.
I am also trying to find if there is a way to ID the year of my motor by motor number or some other means outside of what I have read is the stator wires (.

I found one of the differences is the stator wire count ( 5 wires 03+, 4 - 88-02 please confirm), but being new and having bought my motor on its own, unknown year, no donor VIN etc. I am unsure if any POs perhaps swapped a newer/older stator onto this motor (if that is even possible).

I am bringing back a few YSR50 projects, one being swapping in this blaster motor and need to know what I am working with to ensure I get proper parts, shop specs, electrical etc.

Appreciate that help with this or any of my other posts on this YSR swap.
 

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All mechanical parts will interchange.

Differences:
Main jet increased from 220 to 230
(I don’t know what year)
03+ shift star welded to drum
03+ 5 wire stator