Hi from Poland

Hi. My name is Sebastian. Im a new owner Kawasaki Kz 650 C2 (1978). (My English is not good, sorry about it) I add some pictures, what do you think about this KZ?

I don't now much about Kawasaki Kz models, could anybody look the picture and told something about this kz?

Greetings from Arizona. What are your plans for your KZ? It looks to be road ready. I'd ride it.

Thx for answer. Arizona, nice place I was there couple days. Everything looks ok but I need clean carburator and do cauple things. I think the seat is not oryginal but I'm not shure beside I'm looking for front master pomp breake and air box. Number on frame is KZ650C (year 1978) and I don't know what is oryginal and what is not. For now is air box and seat. (Sory about my english )

Howdy. dobry dzień. You say it is a 78 KZ650-C2. That is probably correct. But the date of mfg isn't necessarily the model year. So it could be a 79 650-C3. You can check the frame & engine numbers at CycleChaos.com. A 650C is a standard model, which is a good thing. The seat is not stock. The stock seat is flat.

Airbox. I think you can use the airbox from any 77-80 KZ650 (KZ650-B/C/D/E/F). If the airbox ducts are hard, removing the carburetors can be difficult. If hard, I would get new ducts.

Carburetors. I would replace the float bowl gaskets & o-rings. A metric nitrile o-ring kit should have some sizes that will fit. Or get a metric viton o-ring kit. Viton rubber is better than nitrile rubber. Sometimes you can rejuvenate paper-type gaskets w silicone spray. saturate them, place in sealed container & let them sit overnight. If you get new gaskets, look at yours first & compare. There are 2 or 3 different KZ650 float bowl gaskets, so get the correct gaskets.

Front brake master cylinder. You can use the Fr brake mc from just about any model with dual disk Fr brake. Even from a modern motorcycle.
Criteria: 7/8" handlebar mount. mount angle (most have a level mount & others have an angled mount). dual disk (5/8" or 16mm piston bore). mirror orifice (some don't have a mirror hole). With a modern mc, you may have to splice the brake switch wires. easy.
....

Welcome to KZRider.
We as a group will be happy to assist you with your KZ 650.
Please dont worry about your english.
Always a good thing to add new members to our international brotherhood
Dave

Greetings from Germany and welcome Sebastian.

First at all you need a Service Manual for your bike.
Read it and do step by step the maintance Jobs.

www.kzrider.com/modules/ServiceManuals/K...Service%20Manual.pdf

www.kzrider.com/modules/ServiceManuals/K...l%20KZ650%201981.pdf

Welcome!
Nice that we are gaining I the European presence and that Z650 can be turned in to a gem with a little work.
/Anders

Thank you felows for any help. Im very appreciate. This is my frame and engine number.

Welcome.
Nice find there with the C2.
You have a good idea about some of things that have been changed: seat, air box, paint etc.
Have seen the airbox before, as an aftermarket replacement for kz900/1000s, and I guess also fitting the 650.
This site has a lot of good info on the various 650 models:
www.jarlef.no/Kawasaki/Series/Z/650/z650.htm

From the frame and engine numbers you posted it is a 1978 C2

Im looking something about a color code stardust silver metalic. Any one know what the code is?