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Discussion Starter · #1 ·
Hi All,

My 1993 900 Superlight engine ate itself last weekend. I have an opportunity to purchase a 2003 900 supersport engine in good condition. It is interstate so I can't see it and measure it.

Will a 2003 900 supersport engine fit into a 1993 frame? Are they the same size?

Also, even though the 2003 was fuel injected and my 93 isn't, will I be able to use the keihin flat slides that I have on the '93 at the moment on the 2003 engine?

Answers fast please! If the shoe fits I want to wear it!

Greg.
 

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one thing that would probably be different is the engine mount bolts. i'm not sure what the sizes would be on a SS though
 

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It'll bolt up just fine but I don't know about the FCR question. You could always use the FI and sell the FRCs to me.
You might need the FI wire harness and a few other things so check with a FI expert 1st.
 

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Discussion Starter · #4 ·
Thanks guys, appreciated.

(I am sure i posted a reply to you guys - but it is nowwhere to be seen, so if this looks like a duplicate then I blame technology!)

I'm off to see a ducati engine rebuild specialist tomorrow, so I'll check then and post back here with what I find.

Greg.
 

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Discussion Starter · #6 ·
Thanks Yorkie, onya.
 

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Discussion Starter · #7 ·
An update here.

It appears as though it is not just a bolt on. There are issues.

* the engine mounting bolts are a different gauge (thicker) on the later models. It is likely that either the frame mount holes will need to be widened to take the later model bolts, or if using the earlier mounting bolts then some sleeves will need to be made up.

* But perhaps, most importantly, the ignition timing mechanisms are different between an EFI and non-EFI models. I have been told that there is an aftermarket kit to convert the EFI timing for use in a non-EFI bike, but I have no further info on that.

So, not just a straight bolt on ...

Greg.
 

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You can solve the bolt problem by drilling the frame holes to accept the newer 12mm bolts. it's a better system anyway. Or, Nichols can set you up with some super bolts.
I can't help you on the FI, carbs to injection or viceversa will always be a problem.
 

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Discussion Starter · #9 ·
Thanks Norm,

Well, engine out and apart and it looks like it wasn't as bad as I thought. No internal damage done apart form a bearing going crunchy crunchy. Still, a bloody expensive excercise though.

Will be sticking to the orig '93 engine and taking an opportunity to spruce it up a bit while it is all apart.

Thanks all,

Greg.
 
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