How to determine year Suzuki DT25

[LukeFishWalker]

My cousin just bought a used Suzuki 25 3-Clinder 2 Stroke.
I read the Sticky and the number stamped on the plate has only numbers - No letters.
Here's the numbers: 02507461141
How do I go about determining what year it is to buy replacement parts?
He needs a cylinder head and the head cover not to mention the 3 bolts that hold the cover.
There is water coming out of the cover to head gasket in the 2 lower spark plug holes.
Upon inspection, the lower cylinder inside the water jacket of the cylinder head
shows significant corrosion and in my opinion needs to be replaced.
It appears that the DT25 & DT30 are relatives and some years parts can be interchanged.
Here's what I see so far:
The years 1988 & 1989 are DT30C only
The years 1990 - 1997 can be DT30C or DT25C
The exception is the years 1990 - 2000 which are DT25C

So, if I have read the information correctly,
The Suzuki Part # 11111-95D30-0ED would be the correct Cylinder Head.
And the Suzuki Part # 11161-95D10-0ED would be the correct Cylinder Head Cover.

Please correct my Cajun Logic if what I have here is incorrect.

And as always,
Thank You For Your Time And Patience,
Lukus

Edit:
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I did a search and come to the conclusion that my answer lies here:
http://www.brownspoint.com/store/pc/suzuki/dt25.asp
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[99yam40]

look here http://www.brownspoint.com/store/pc/suzuki/dt25.asp

It is a 94

 

[LukeFishWalker]

Yes Sir 99yam40, I didn't look through the search results far enough to find the
brownspoint link. Once I did find the link it was pretty dang simple to see that
the numbers did in fact tell me that it is a 1994.
However, I do appreciate your response.

Thank You For Your Time And Patience,
Lukus