1985 Kawasaki Ninja GPZ600R - Kawasaki Motorcycle Forums
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post #1 of 16 (permalink) Old 04-19-2019, 04:39 AM Thread Starter
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Location: Sydney ,Australia
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1985 Kawasaki Ninja GPZ600R

hi, everyone, I'm new at restoring bikes normally I do cars.
I'm from Sydney Australia.
decided to work on bikes cause they take less space.
I'm very excited and determine to finish this project.

so here my story.
bought the bike on facebook market, it was advertised for 900.00aud.
managed to get for a lot less, upon the inspection, I found oil in the radiator and engine had water mixed with oil.
the ad stated mechanically sound anyway managed to get it for a lot less.
I'm assuming its a head gasket, I did a compression test and it was around 150,155, psi, I'm no mechanic but that's
not bad compression for 30 years old bike with 92,000km or 57,166miles.
Just wondering, if its a blown head gasket would I get a lot less compression or any compression at all?

removed all the oil and fill it up with new oil, now the next step is to start her up without radiator
need to know if she's ok no internal noises etc.
will try tomorrow as my battery is flat.

anyone fill free to reply as I need as much help as I can thank you
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post #2 of 16 (permalink) Old 04-20-2019, 12:37 AM Thread Starter
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ok took a bit to start her up but got her running.
there a bit of smoke I think rings possibly.
some noise coming from the inside engine but I watched a video on youtube
she sounds just like it which makes me believe is normal.
I will post a video up soon.
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post #3 of 16 (permalink) Old 04-20-2019, 07:07 AM Thread Starter
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here is a video I made.
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post #4 of 16 (permalink) Old 04-20-2019, 03:34 PM
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Excellent video, looks like rings, too much difference between dry and wet readings, oil looks terrible, I suggest purchasing a cheap oil and add about 2 tablespoons of diesel to clean engine out of sludge and water, let engine run for several short periods, over a few days then drain again and sit over 24 hours with oil plug removed. If your doing rings , should check valve clearance, however wet test is encouraging. When head is removed you should see head gasket condition. I had a Honda that was found in a barn after 6 years, finally started it and oil came out of every where. The crank case vent was blocked and engine pressure in the bottom end escaped where possible with oil, I don't know how a water cooled engine would behave and if that might have caused a mixing of water and oil. Crank case vent usually goes to the air box, a wasp had made a mud nest in the air box at the junction with the vent hose. That caused problem maybe yours is just as easy.
Hope this helps.
Grey Hawk

81 Honda cb400t
82 Honda Goldwing GL100
83 Honda cm 450e
all restored
1975 Kawasaki KS 125 Enduro ( restoration on going )
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post #5 of 16 (permalink) Old 04-20-2019, 07:12 PM Thread Starter
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thank you Grey Hawk.
I'm going to buy new rings.
just wondering if you can recommend an online shop that's not too expensive.
I know eBay is very cheap but you know eBay, the ad says one thing I get another
especially buying from an Asian country.

removed carbs and strip them down, got them marinating in carb cleaner.
there pretty nasty 30years of dirt stuck to them.
trying to post pics but won't let me
JPEG Image 66.3 KB
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post #6 of 16 (permalink) Old 04-24-2019, 03:13 PM
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Fernando
Have you taken top end apart yet, if not , take apart before ordering rings, cylinder walls should be inspected in the event of damage and you may have to rebore and have oversize rings. But if you can try carbs since you cleaned them before jumping into a money pit,.
Try starting with ether or quick start to see if it is better. You can purchase rings and valves from dealer , although more cost, usually better quality and no question of being right . Stay in touch, very interesting bike, I would like to know how you make out.
I Live in Sherkston , Ontario, Canada
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post #7 of 16 (permalink) Old 04-27-2019, 12:10 PM Thread Starter
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I haven't had a chance to open engine .
managed to post pictures up on photobucket not sure if it will show here.
https://oi1378.photobucket.com/album...ps8iw8hmik.jpg
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post #8 of 16 (permalink) Old 04-27-2019, 12:32 PM Thread Starter
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post #9 of 16 (permalink) Old 04-29-2019, 10:58 AM
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Looks like you are going to be busy with the rebuild but looks like it will be a nice bike when you are finished.
I am in Northern NSW Australia and have two GPZ900Rs and a GPZ1000RX
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post #10 of 16 (permalink) Old 04-30-2019, 06:34 AM Thread Starter
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it sure will.
my idea in restoration is to try my best to bring the bike back to its original form.
had to buy few parts like new ignition & fuel lid lock, oil 4L & filter, fuel filter, rear/front wheel bearings, base/head gaskets.new chain
front/rear sprockets etc.
paint i bought red,dark blue,white,silver,black this are the original colour of the bike
my next bike will be GPZ1000RX if i can find a cheap one

Last edited by FERNANDO; 04-30-2019 at 06:36 AM. Reason: need to add more
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