z750L engine rebuild parts

Hi,

My engine (1981 z750L engine.) is running fine, but its leaks oil from the top gasket and it using oil.... So my plan is to inspect the cylinders (properly honing them), replace piston rings. The top must we see when I have open up the engine, but will replace the oil seals anyway, but don`t know if I`m going to deliver the top in for overhaul, valves and seat for valves.. we will see...

I have made part list of parts I thing I need, is there something I`m missing or should have done?
temp.dynamitt.net/div/MC/parts.pdf

My next question is I properly need other things accept for tools, sealing for the top gasket ? tips of what I should choice?
other things?

Thank you for using your time reading these.

Be sure to check the rubber carb holders. After 35 years they are candidates for replacement.

You can save a little money by getting aftermarket viton valve stem seals. They are one of the few aftermarket parts that are better than OEM.

While ordering parts don't forget to grab a couple oil filters.

Overall, I think your list looks pretty good.

Thank you for your feedback.

1. Rubber carb holders
They are not leaking, but I can see they are some "stretched" because I`m using the carbs from a 650 engine (not vacuum),
and my engine is 750, the rubber holders is holding the weight of the carbs... I have made a temporary fix on these, need to find a more permanent solution, so if anybody have some ideas I`m glad full for inputs how to make support.

I will check up the price, and properly by new one.
The problem is what is correct for me since I`m using 650 carbs on the 750 engine.
The carbs I have is these one looks like:
www.partzilla.com/catalog/kawasaki/motor...retor-parts-kz650-h1

Is these correct for me HOLDER-CARBURETOR 16065-1132 ???
www.partzilla.com/product/kawasaki/16065...a5fcc89269aa186055fd

Maybe previous owner has installed carb holders for 650 engine, since the carbs is for the 650 engine?
I can try to take some close up photos if that helps?

2. Valve Stem seals
I will check up these, thank you.

3. Sealer
www.amazon.com/CRC-401612-Copper-Gasket-Compound/dp/B000M8NZ8E
Is these the best and easiest sealer to work with?
I`m only need sealer on the head gasket?

4. GASKET,CHAMBER TOP (Carbs)
I order new one from z1enterprises.com not OEM, but the gasket has broken on two of the carbs,
These one: www.z1enterprises.com/gasket-carb-top-vm-roundslide-kz-gs.html
when I have removed the cover for carb sync... will OEM Kawa parts have better quality and work longer before they got broken?
Other options ? what is best todo?
These is the gasket for keeping the carbs airtight (chamber on top of the carbs).


Again thank you so! much for taking your time to help me out.

For a KZ750-L engine with VM24 carburetors. Those 16065-1132 carb holders are incorrect as they are for BS carburetors.
Get the carb holders for a 77-81 KZ650 as all of these models had VM24 carbs. If yours are stretched, you may need to post a good photo so we can see what's going on. It may be that the bolt hole spacing on a 750-4 engine is too wide for 650 carb holders, so the holes don't line up. If so, then you could probably enlarge the holes using a drill & sharp drill bit.

I don't know much about copper gasket spray, but when used appropriately, that product is probably fine & there are probably others that would work just as good, such as Permatex copper spray-a-gasket. It probably wouldn't hurt to spray the carb top gaskets.

Those #200-1056 carburetor top gaskets should work fine. I don't think you have to worry too much about the carb tops.
When working with older gaskets, something I do is to spray them with Liquid wrench silicone spray lubricant & let them sit in a baggie overnight. The stuff kind of rejuvenates them.

Thank you,

The carbs rubber holders is fine now, no leaks, but I can see that the weight of the carbs is making "stress" on the carbs holders.
When you use a the original air filter the weight is taken off but the air filter also? so now when I have pods all weight is on the four carbs holders, I was asking about inputs of what others have done to take off the weight as a permanent solution. As I see it is the carbs holders only meant to keeping the it airtight not holding weight of the carbs?

I can see that the weight of the carbs is making "stress" on the carbs holders.

I don't know what others have done. This seems like it ought to be a common problem, but it doesn't get discussed very often. The only solution I recall is to secure the carbs to the frame using large zip ties.

martin_csr wrote: I can see that the weight of the carbs is making "stress" on the carbs holders.

I don't know what others have done. This seems like it ought to be a common problem, but it doesn't get discussed very often. The only solution I recall is to secure the carbs to the frame using large zip ties.

Thank I have done that now, but looks like more a temp. solution, I will use my brain in the winter maybe I come up with a good solution can help others also

I have one question when I`m finish with overhaul the engine from topside (cylinders and top), it`s no problem in the future take out the engine from the frame and turn it around and open it up from sub page to overhaul it from under page also, don`t need o open up the engine from top side one more time?

You can remove the lower engine case half without taking apart the top end.
But you can only service the transmission, oil pump and the starter clutch.
To remove the crankshaft, you have to remove the camshafts because the cam chain is looped around the crank.
The starter clutch or oil pump can be serviced with the engine in the frame, so no need to remove the engine or disassemble the case.

Thank you for you information these mean no need to take of the top then