peter1958 wrote: I have one for the 650 i can live without
Darn, i don't think that'll work. I have a 1000, so I need the 72mm one.
The problem is as soon as you go bigger 1075, 1105 etc or 700cc or 810 on mine they don't work either..... I was seriously thinking about one too till I read and figured out that.
OK... my factory Z1 900 ring compression tool did not work well on my 1015cc pistons and it didn't work AT ALL on my 1075cc pistons.
So I sold it, the piston stabilizing rods and the big orange bag/case.
I have shown pictures of this problem before even trying it on the engine....here on the KZR site and those photos can be found if looking around.
However, my factory KZ1000 ring compressor worked flawlessly, and even with my 1075cc over size pistons!!
The damn cylinder block just slid down over the four, 2mm over sized pistons and rings so fast, it actually caught me off guard.
So fast, I couldn't slow it down in time to watch what was happening...the sleeves just slipped right down and banged into the compression tool in one smooth motion.
No damage or anything,
I just wasn't really ready for it to go together that fast.
With the tool removed, (EASY) the block pushed right down with little effort and bottomed out into the locating dowel pins.....
Plus, taking the tool apart after this is just a joy, so satisfying.... compared to trying to do it with all the nutty contraptions, hose clamps, beer cans, plastic wire ties (you name it) I've seen them all.
The entire procedure took 4 minutes after squeezing the rings and that included removing the tool from the case and studs.
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
missionkz wrote: so satisfying.... compared to trying to do it with all the nutty contraptions, hose clamps, beer cans, plastic wire ties (you name it) I've seen them all.
First attempt, and was a joy too. A cheap one...
The black plastic strip is slick. It gets pressed down the piston by the bottom of the cylinder sleeve as it presses on the edge of the strip. The rings pop free inside the sleeve where they should, with the gaps locked in their proper positions. You don't get that using fingers to compress the rings.
1982 KZ1100A-2 (sort-of)
January 2016 BOTM
The following user(s) said Thank You: GPz550D1, Patton
No doubt the tool is better, but I haven't had trouble with generous assembly lube and fingers to fit rings back in the cylinders. My hands are not to big or fat to reach though. I would not use a home made contraption. R
Sorry for the late response to the question about my home-made plastic strip-backed hose clamp contraption.
1" wide x 1/16" thick LDPE soft plastic strips were used behind the hose clamps primarily to lock the rings in the FSM specified orientation to the pistons. With the clamps adjusted properly, the soft/slick plastic allows the cylinder sleeve edge to gently push the strip (and clamp) down the piston, releasing each ring within the cylinder as it passes in the exact-same position it was clamped...with assurance that no scratches were left behind on the piston.
Once the four clamped strips were properly placed on the pistons, the cylinder installation process was slickity-split fast...and precise.
I have never seen one of these special ring compressor tools for the 900 or 1000 cc Kawasaki's. I assume the original "sandwiched" around all four pistons at once and was made of steel yes? If so, couldn't one of these tools be made of one piece of Delrin with the cylinder bores in the proper orientation and then split the Delrin into two pieces to clamp around the piston rings. I am just thinking outside the box here and may be someone has already tried this approach, but Delrin is pretty tough material and should last for quite a while. If anyone has one of these OEM tools and can post a couple of pictures of it I can pass it by a friend I have that's a machinist in a mold making facility. Delrin is really easy to fabricate things with.
OldRebel wrote: Do you have any idea what engine this part number 57001-531 fits?I bought it from an Ebay seller in Louisiana.Was supposed to fit KZ1000.It doesnt.Have no idea what it fits but it wont work on a Z1.
Rick H. wrote: ................. If anyone has one of these OEM tools and can post a couple of pictures of it I can pass it by a friend I have that's a machinist in a mold making facility. ...........
Even If they are made for a 650 then a 781cc or a 810cc or a 831cc piston is not going to fit them either. Or a 1075cc piston with the 1,000cc model right ?
Glad Jay at Ape told me just to use my stubby little fingers.
1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket....