Question about kawasaki GPZ 500 S - GPX 500 R Motorcycles

1 Answer

Hi i got a kawasaki 1986 gpz 400 ( fx400) fairingless it's normally called a grey import. my problem is that the waterpump at the bottom leak when the bike is warm, but if it's cold there seem to be no leaking, could a person take off the cover and sealed it, my understanding is that you don't get replacement parts, as it is a complete unit that you need to buy

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

Kawasaki's are notorious for the waterpump seals going. There are little rubber doughnut seals (3 if i remember) that run along the impellor shaft. When these break down, you get the leak. I would be pretty certain on a bike of this age, that this is your problem. It isnt a massive job to do, but if your not technically minded it can get messy. The shaft is connected by a circlip on the opposite side to pump prop, and should, i emphisise the word SHOULD slide out, once the clip is released. But beware as ALOT of these become siezed and stuck fast, so some more dissasembly may be required. You can try taking off the cover and using a good instant gasket, providing that your running temp is fine, no water in the oil (if your lucky) but these cover seals are designed to pop if there is too much pressure behind them, hence me telling you about the impellor seals.

Hope this helps mate,

Mista B.

Posted on Apr 07, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How to remove rear tire on an 1986 gpz 1000r

Hi, John sorry you can't find the first and best tool you ever bought for your Kawasaki despair, not for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Rear Tire Install on 2009 Kawasaki Concours14
Kawasaki GPZ1000RX

Mar 03, 2016 | Motorcycles


Gpz 1000rx Engine dies on pull away.

my gpz 1000rx 1986 would start and rev fine but die on pull away, for weeks tried allsorts (carbs cleaned, plugs changed etc) Solution for me was WD40 the sidestand switch and tighten earth lead from battery where it bolts to engine block, now its fine. Hope this helps WAZZA

on Oct 22, 2013 | 1986 kawasaki GPz 1000 RX

1 Answer

I need the specs for setting the floats and jets on a 1986 kawasaki gpz 1000

The float setting is 17mm frombase of carb to farthest edge of float ,holding carb vertical

May 13, 2011 | 1986 kawasaki GPz 1000 RX

2 Answers

Cant find wiring diagram

Hi and welcome to the site,

For the wiring diagram of a Kawasaki GPZ / ZX 400, please click here.

Good luck and thank you for asking.

Jun 06, 2010 | 1988 kawasaki ZX 400

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

176 people viewed this question

Ask a Question

Usually answered in minutes!

Top kawasaki Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4535 Answers


Level 3 Expert

76630 Answers


Level 2 Expert

342 Answers

Are you a kawasaki Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides