I thought I would share what I was able to accomplish (for my 40 year old GPZ550D1) with my 3D printer.
I have successfully printed a couple of parts that I could not find, for a reasonable price, or, not at all.
The first one I did was the tool tray that fits under the seat.
The process involves drawing an accurate 3D model, but I didn't have a sample
to measure and copy.
I searched the internet and found a couple of photos.
So, by measuring the space where it should fit, and looking at those photos,
I was able to draw up a model.
There are certain limitations as to what can be printed in one go,
so the part was sectioned into two halves (upper and lower) and printed separately,
and glued together afterward.
The material I used is PETG, and is printed at 240 degrees Celsius
I have a fairly small printer (Creality Ender 3, Pro V2) but adequate for my needs.
I am very happy with the result.
Next up was the document box that fits under the seat inside the tail piece.
I had to follow the same procedure... first I found a couple of photo's from the net, then drew up the model.
The result is satisfactory / functional, but not a perfect replica.
The previous owner had removed the air-box and fitted "pod" filters. WHY, WHY, WHY?
The jetting was way off when I got the bike, and I spent many, many hours trying to get the jetting right.
I had the carbs off and on at least 20 times, bought numerous size jets, shimmed needles, even drilled jets in-between sizes... without a satisfactory result.
I managed to find an original (very used) air-box for cheap, but the rubber boots were as hard as plastic,
and it didn't have the "L" shaped mounting brackets either.
Ordered those from my local Kawa dealer, and 4 weeks later they arrived from Japan.
The air-box did not have the "cap" that retains the air-filter element, and is not available to purchase any longer.
So, from a few internet photos, and measurements from the air-box, I drew up a cap...
The model I finally arrived at needed to be printed in 2 halves as well.
These were subsequently super-glued together to form one part.
The resulting part is, to me, quite satisfactory.
I returned the jetting, and needle clip positions, to stock, and installed the carbs.
I can report that carburation is now totally PERFECT. (PURRFECT
)
The machine purrs like a pussycat, at all rpm's and varying engine loads.
Kawasaki engineers knew what they were doing!
Now my bike looks original, finally!
If anyone wants the 3D printer models, just ask, I will share them gladly!
Cheers!