Any difference between years of manufacture?

[Guest]

I've got a GS400 (Frame number GS400 - 72977 and engine number GS400 – 77872) in Australia that I'm trying to locate parts for it on various US websites. My registration claims the bike is a 1980 unit but I can't find any parts for 1980 GS400 only 1977-1979. The various shops in the US tell me they don't sell parts for international models but I think that's just because they are also unsure of the exact year of my bike.

Can anyone tell me the year of my engine from the engine number? Was there any engine changes between 1979 and 1980 or can I rest assured that if I get rings, gaskets, etc from either year it will fit?

[Steve]

Here in the USofA, our last 400 was in '78.

Other non-US owners have found success at a place in Europe, at csmnl.com.

.

[brettule]

Oh ok, so they stopped importing them after '78?

[Charlie G]

The states only received the 2 valve per cylinder model. I suspect you have a 4 valve per cylinder model. Canada and Europe received the 4 valve model as well. That's all I have for you.