Forum

Login

Register

By registering at the KZrider.com community, you agree to the following terms. KZrider.com reserves the right to remove any posting it finds unsuitable. Members who refuse to play by the following rules will be excluded from the discussion board.

PRODUCT OR SERVICE ADVERTISING IS STRICTLY LIMITED
KZrider is more than a website. Its members comprise a community of KZ enthusiasts dedicated to encouraging and preserving our sport and passion for Kawasaki Z, Z1 and KZ motorcycles. We pursue our passion because we enjoy it, not to make money from it. To that end KZrider.com is not a place for you to solicit sales of any kind. No member is allowed to refer to their own business, or any business to which he/she is associated, through the discussion forum or personal messaging system (U2U). Be aware, the U2U feature has been abused in the past. If any member solicits an unwelcomed solicitation through the U2U system please report that solicitation to the Administrator or Moderators promptly.

There are four exceptions to this policy:
1. As permitted in Classifieds (consumer-to-consumer transactions).
2. An item may be offered for sale as a consumer-to-consumer transaction in any forum where there exists reasonable expectation of being welcomed by another member who has previously posted in the thread ("cold calls" and "door-to-door" solicitations are prohibited).
3. Each member is allowed a simple link (somesite.com) in their signature, which link shall include no description of any kind.
4. Paying advertisers are allowed to post in the Vendor forum.

KEEP IT CLEAN
You may not post libelous or defamatory messages or materials, or include links to such materials in your postings. You may not post messages that are obscene, violent, abusive or designed to harass or intimidate another individual. Pornography, Warez, or any other illegal transactions may not be posted or included in members profiles. No blatant nudity.

BE CIVILIZED
Don't use racial, ethnic, or gender slurs, religiously derogatory comments or any other personal discriminations even in jest. Use of slurs needlessly offends people - whether or not they're a member of the group you've insulted. Respect others' religious beliefs and culture. Recognize that others have religious and personal beliefs which may differ from yours. Stay away from political debates. Keep the language and behaviour appropriate.

USE DESCRIPTIVE THREAD TITLES
When you post a new thread, please give users some idea of what it contains in the title. Thread titles like "Help" or "Check this out!" are cheap ways of getting users to look at a thread they might not care about, and would not have clicked on had the full title "Help, I need credit card numbers!" been used. Furthermore, it helps stop multiple threads on the same subject. When starting a new thread, describe the content of your thread clearly in the 'Subject' line of your post. Don't use vague subjects. Use descriptive and specific subject lines. This helps others decide whether your particular words of wisdom relate to a topic they care about. For example: "HELP!!" is not an appropriate subject and neither is "My bike doesn't run".

PLEASE DON'T SHOUT!
That cap lock key wasn't invented to help you get your message across. Messages written in all caps are annoying, hard to read, and loud.

HAS IT BEEN POSTED ALREADY?
Please look for an existing thread on a subject before you post one about it. Chances are good that your question has already been answered. There is a search feature on these forums, use it. Starting topics that have already been answered in great detail is a waste of everyone's time. Look to see if information you're about to post has just been posted by someone else. Then go ahead and post.

WE HAVE SECTIONS FOR A REASON
The Technical Forums have different sections for a reason. If you're not sure, use your best judgment. 

DON'T CROSS-POST
Cross-posting is when you post the same message multiple times in various threads or forums. We only need to see it once guys. 

STAY ON TOPIC
Keep threads on topic. If you've got something completely unrelated to say then start a new thread. Unresponsive solicitations for consumer-to-consumer sale are prohibited as being unrelated and off topic, but solicitations for consumer-to-consumer sale may be posted in Classifieds.

CONSIDER THE IMPACT OF YOUR WORDS BEFORE POSTING
Adhere to the same high standards (or higher) of behaviour online that you follow in real life. In real life, most people are fairly polite and law abiding. The same rules of behaviour are expected on any list.

MESSAGES SHOULD CONTRIBUTE TO THE TOPIC BEING DISCUSSED
or introduce a relevant idea. If you've read enough threads, you've already learned how annoying it is to go through "Me Too" posts. A "Me Too" is a post that says "I agree with what the other guy said" and otherwise does not add to the content. If you have a comment about someone else's post, tell them via U2U or email. Generally speaking, unless it concerns the entire group and is within the group's stated purpose, you should reply only to the author. Avoid replies or responses to the whole list of yes, no, or "I agree!". This is meaningless and you too would be annoyed to open such a message.

WELCOME TO KZRIDER
If you are a new member, introduce yourself by posting to the New Member Forum. While it's nice to welcome a new member, only do so if they have posted in the New Members forum. There is no need for 50 welcome posts in a technical forum thread.

U2U IS A WONDERFUL FEATURE
Please don't start a topic that is directed at one person that could be put into a U2U to them. If you have a message for one or two posters, use U2U or email.

PICTURE PERFECT
Images & attachments may be posted as long as they are not explicive or offensive. Images are limited in size to 2mb. The Project Forum is for members' rides only and is an ideal place to document your rebuild.

FLAME-WARS
Don't even start them, they will be ended, quickly, and you'll find yourself on the short bus. Flaming: Personal attacks in cyberspace can be particularly vicious. Flaming is the rather nasty art of attacking others on a personal level.

  • Register
Welcome, Guest
Username: Password: Remember me

TOPIC: Piston rings for KZ750 ?

Piston rings for KZ750 ? 7 years 1 month ago #151386

Where can I find piston rings for KZ750 ?
Or maybe somebody from this forum sells a set he don't need ?
Please..tell me if you know...
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151440

  • Biquetoast
  • Biquetoast's Avatar
  • OFFLINE
  • Member
  • King Jeremy The Wicked
  • Posts: 1193
  • Thank you received: 1
scorpio wrote:
Where can I find piston rings for KZ750 ?
It might help to tell if its a 2 or 4 cylinder.
B)
(1.) '75/'76 KZ400D - Commuter
(2.) '78 KZ750B3 Twin - Commuter
(3.) '78 KZ750B3 Twin - Commuter
(4.) '75 KZ400D - Sold
http://kz750twins.com
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151459

  • Mcdroid
  • Mcdroid's Avatar
  • OFFLINE
  • Member
  • Gone Kwackers
  • Posts: 5939
  • Thank you received: 114
Scorpio:

Same question as Biquetoast, but since KZ750(4)'s are more common in Europe than twins, I'll assume you have a 'four'. Unfortunately, it does not appear that ring sets are available as an aftermarket item. They are also rarely offered on eBay as OEM NOS. On the positive side, they are still available from Kawasaki for about US$31.00 a piston.
Michael
Alvin, Texas

1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A

The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151512

Hi, It is four cylinders engine. Biquetoast, it will be really cool if you can help somehow...
Mcdroid, bad to hear that...and yes, it is really rare offered part in ebay, I've checked there few times without success :(
$120 from kawasaki is way too much for me, but if i can't find other way...maybe finally I have to buy rings from them...

Post edited by: scorpio, at: 2007/06/21 15:22
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151521

Howdy scorpio... First, you can't buy from Kawasaki direct over the Internet. You can buy from a Kawasaki dealer or you can buy from an Internet retailer who sells Kawasaki parts. There are several. www.bikebandit.com and www.mrcycles.com come to mind. Also keep in mind that you had best know what year bike you own as the rings for an 81 carry a different part number than an 82/83; that is, the E1 is a different part than the E2 or E3. I am not sure where folks get the prices but if you can find the rings for just over $30 a set you had best jump on them because bikebandit.com was over $50 a set for the earlier rings and mrcycles.com was just over $40 a set. I am not sure what the payment policies are for these places nor I am not sure if they ship overseas. You will have to go check their websites, I guess. You could also try www.z1enterprises.com - I KNOW that they don't have the rings listed on their site but they CAN get any part any of the big online parts sellers can and they ship overseas... not sure about your country but the one thing you will get with them is the RIGHT PART. They will likely actually ask for your frame number and look the correct part up on their parts fiche where the other folks will just sell you the part you order... if the wrong part gets shipped, I suspect that returning the part will cost a bunch in shipping. Also, US postal rates have gotten REAL expensive last few months... Add that to the cost of the rings. You can check the rates somewhat by guessing ship weight and checking the www.usps.com website.
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151555

  • steell
  • steell's Avatar
  • OFFLINE
  • Member
  • Posts: 6908
  • Thank you received: 195
1980 KZ750E1
Standard size P/N 13008-5031 $42.44

.020" oversize P/N 13025-5014 $42.44

.040" oversize P/N 13024-5014 $42.44

1981-82 KZ750E2/E3

Standard P/N 13008-5031

.020" P/N 13025-5014

.040" P/N 13024-5014

83 GPz750 (ZX750A1)

Standard P/N 13008-5046 $30.32

.020" P/N 13025-5022 $30.32

.040 P/N 13024-5022 $30.32

According to kawasaki.com, all the KZ750E models have the same rings, the 83 GPz750 has different part numbers because the rings are thinner. I need some .020" oversized rings for a GPz750, so I ought to order some before the price increases, and see if they are actually available.

Prices are from https://www.ronayers.com/index.cfm

Post edited by: steell, at: 2007/06/21 18:16
Never let facts get in the way of a good story. :evil:
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151647

dude, is this what you need?

for i feel my 750 bros...

cgi.ebay.com/ebaymotors/FOUR-New-Nos-Kaw...dZ1QQsspagenameZWD1V
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151648

crap

he cant use those can he? she? whatev...
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151667

  • steell
  • steell's Avatar
  • OFFLINE
  • Member
  • Posts: 6908
  • Thank you received: 195
cottoncandyninja wrote:
crap

he cant use those can he? she? whatev...

Those are .020" (.5 mm) oversize rings, so unless he has .020" (0.5 mm) oversized pistons it won't work.

Too bad they are not for a GPz750 though :)
Never let facts get in the way of a good story. :evil:
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151699

Thank you all guys for giving me those links and info. Expensive or not, I have to buy the rings...gotta see what source will be best to buy from...
cottoncandyninja, unfortunatly, as steel already said, those rings are for oversized pistons and I need the standart (66 mm) ones...
Thanks again.

Post edited by: scorpio, at: 2007/06/22 05:22
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151711

  • Duck
  • Duck's Avatar
  • OFFLINE
  • Member
  • e vica na i sau na ga
  • Posts: 1269
You might measure...or take specifications form the manual...for your rings.

Take this and search for rings havine the same specification rather than by the kz750-4 application.

Many motorcycles have 66mm pistons...

-Duck
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #151992

Duck, I took a look in the motorcylcle informational websites, checked lots of different motocycles, but I didn't find a brand and model with 66mm...can you tell me some if you know ? I have some technical skills and I have some machines (mills, lathes and so on) by my side and I was looking even for piston rings from a small car or somethnig like that...even I don't care much about how thick the rings are (I can grind them if their thickness is more then needed...or even i can make the notch for the ring in the piston wider...that wouldn't be a problem if we talk for just some tens of millimeter). And of coarse you MUST always use only parts made exactly for your bike! But when you have no other choice (during financial or whatever reasons) and when you are open for experiments ;) - no problem to give that a try. Its not my first time doing these things and I have some experience, but I was not able to find any 66 mm rings around here...neither from car nor from a bike...so if somebody knows other brand with the same rings - tell me. Other way is also to get for example second overbore rings from a motorbike that have standart cylinders of 65.5 mm...
But don't do these things to your bikes unless you don't really know what you're doing ;)
The administrator has disabled public write access.

Re:Piston rings for KZ750 ? 7 years 1 month ago #152031

The piston rings on a Z1 or KZ900 are 65.94mm standard size in a 66.01mm bore. Even a Clymers manual has all the ring specs, if you need them.

903cc spec:

Cylinder ID
standard 66.01mm wear limit 66.10mm

piston/cylinder bore clearance
.06 ~ .08mm

piston ring/groove clearance TOP/2nd
standard .06mm wear limit .18mm

oil ring
standard .03mm wear limit .15mm

ring thickness
*top/2nd
standard 1.45mm wear limit 1.36mm
*oil ring
standard 2.48 wear limit 2.4mm

ring groove width
*top/2nd
standard 1.51mm wear limit 1.6mm
*oil ring
standard 2.51mm wear limit 2.6mm

installed ring gap top/2nd
standard .3mm wear limit .7mm

piston ring free gap
*top/2nd
standard 9mm wear limit 6mm
*oil
standard 8mm wear limit 5mm
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
The administrator has disabled public write access.
Keyword