Help Please! - Model numbers and parts numbers

[logan]

Having a nightmare ordering wrong parts.

I thought our gixxer was a GK76a - the frame number starts GK76a104 - but when I order parts for 76a's they are the wrong ones.

The first one was the float bowl seal - I ordered part no. 13258-33c00 from Suzuki and it doesn't fit. I wondered if I may be a GK76a frame with an earlier engine in it. But I ordered the bracket which holds the tank (the end nearest your nuts) and its wider than my frame holes are - so that doesn't fit either.

Also my mate who's got the carbs says he doesn't think they're originally from a gixxer400 - but they do fit perfectly with no visible adaptations.

Here's what I've spotted different on our bike to what others appear to be:

Twin headlights like a 73a.

No remote reservoir on the rear shock (and its not missing or from a GSXR-600 so far as I can tell) and the shock is very stiff and looks to have been there a long time - could be after market suppose though.

Carbs have one petrol feed to them in the middle of the bank, not two like on Chalky's, also they look to be the originals but they have orange coulored (may once have been white or cream) floats - pictures I have seen of 76a's have black floats.

The petrol tap is different to the one on Chalky's blog.

Stainless downpipes and link pipe in very high quality seamless stainless tube 1mm thick with aluminium end can - never seen an ali end can before. Strong possibility its aftermarket I suppose.

Clip-ons have two bolts holding in place - not one like 76a's.

Do they normally use the common cannister type oil filters or are they housed elsewhere and just the elements replaced? Granted it was dark when I looked but there doesn't appear to be any cannister filter or space for one.

[logan]

Took a torch and found oil filter housing - that appears to be the same as others

[Chalky]

Have you got any pics available?

I haven't seen a 73 up close, but I couldn't certainly tell you any similarities to mine.

You're right about the float colour, mine are black....and slightly discoloured through the years :D

Did you get the bike as whole? If so is there in visible evidence that the enginge has been removed....such as scratches on the frame around any of the fixings? Or anything else that may suggest it being removed.

[logan]

The headers look rusty in the last pic but they are stainless and the colour is from overspay. I think the bike spent a lot of time in a body shop at some point (filler dust and five different colours of overspray).

I brought the bike whole and the engine seems to be the original item - at least it hasn't been changed any time recently, but then nothing has been done to it recently .

It will fly again when I'm done though!

[logan]

Oh - and those are normal calipers that have been badly painted gold. They look a load better in those photo's than in the flesh.

[Chalky]

Looking at the frame I'd say there are quite a few differences to my 76....in fact there are probly quite a few differences.

But I'd like to wait and see what the other guys have to say.

[Variablevalves suck]

Thats a gk73, take a look at the site below.
http://www.suzukicycles.org/GSX-R-series/GSX-R400.shtml" onclick="window.open(this.href);return false;
The gk76 is very different looking.

[logan]

Cheers very much - that website is a real help!

Any ideas about the GK76a frame number?

Cheers

[timoth123]

possibly been nicked then restamped?

[logan]

No its never been re-stamped. Used to work as a consultant in the industry. Mind it could just be the best job I've ever seen! Seriously though it hasn't - I'm sure of that.

So I'm S##t out of ideas!