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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

Site

Issues

The recent problems with the registration system should now be fixed
 
Identification    
 Letter designation    A5
 Color     Diamond dark green or Diamond brown
 Frame #    Z1F-085701
 Engine #    Z1E-086001
     
Dimensions    

 Overall length

   2,200 mm, EU: 2,245 mm

 Overall width

   865 mm

 Overall height

   1,170 mm
 Wheelbase    1,490 mm
 Road clearance    165 mm
 Dry weight    233 kg, EU: 241
 Fuel tank capacity    17 l
     
Performance     
 Climbing ability    30°
 Braking distance    11 m from 50 kph
 Minimum turning radius    2.5 m
     
Engine     
 Type    4 stroke, DOHC, 4 cylinder, air cooled 
 Bore and stroke    66.0 mm x 66.0 mm
 Displacement    903 cc
 Compression ratio    8.5
 Maximum horsepower    81 hp @ 8,500 rpm
 Maximum torque    7.3 kg-m @ 7,500 rpm
 Valve timing    

 Inlet

 

Open

Closed

Duration 

 30° BTDC 

 70° ABDC

 

 Exhaust

 

Open

Closed

Duration 

 70° BBDC 

 30° ATDC

 

 Carburetors    (4) Mikuni VM26SS
 Lubrication system    Wet sump
 Engine oil Type   SAE 10W40, 10W50, 20W40, 20W50
  Capacity  3.7 l
 Starting system    Electric starter and kick
 Ignition system    Battery and coil (transistorized)
 Cylinder numbering method    Left to right, 1-2-3-4
 Firing order    1-2-4-3
 Ignition timing    From 20° BTDC @ 1,500 rpm to 40° BTDC @ 2,350 rpm
 Spark plugs    NGK B8ES
     
Transmission     
 Type    5 speed, constant mesh, return shift
 Clutch    Multi-disc, wet
 Gear ratio 1st   3.17
  2nd  2.19
  3rd  1.67
  4th   1.38
  5th   1.22
  6th   -
 Primary reduction ratio    1.73
 Final reduction ratio    4.92, EU: 4.64
 Overall drive ratio    
   
Electrical equipment     
 Alternator    Kokusan AR3703
 Regulator/rectifier    Kokusan RS2127
 Ignition coils    Toyodenso ZC001-14, ZC001-23
 Battery    
 Starter motor    Mitsuba SM-226-K
 Headlight Type   Sealed, EU: Semi-sealed
  Bulb   12V 50/60W
 Tail/brake light    12V 8/23W, EU: 12V 5/21W
 City light  

 12V 4W

 Turn signal lights    12V 23W, EU: 12V 21W
 Meter lights    12V 3.4w
 Indicator lights    12v 3.4w
 Horn    12V 2.5A
     
Frame     
 Type    Tubular, double cradle
 Steering angle    41° to either side
 Castor    64°
 Trail    90 mm
 Tire size Front   3.25 - 19
  Rear   4.00 - 18
 Suspension Front   Telescopic fork
  Rear   Swing arm
 Suspension stroke Front   140 mm
  Rear   80 mm
 Front fork oil Type   SAE 10W
  Capacity   175 cc
  Oil level   
     
Brakes     
 Type Front   Single disc, EU: Dual disc
  Rear   Internal expansion, leading-trailing
 Effective disc diameter Front   245 mm
 Brake drum inside diameter Rear   200 X 35 mm

Latest posts

The Super Four

Short clip from the Z1 movie with Micky Hesse. In September 1972, the Z1 was introduced to the U.S. public, and sales started in November of that year.