jamiem
Parking Attendant
breaker
Posts: 13
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posted June 26, 2010 12:09 PM
hot ZX12R A1 NINJA help!
my zx 12 r keeps overheatin when stood at lights or in town centres. had looked for oil in water and vice versa, fluid ok. still gets hot. overfilled it once ages ago. any ideas anyone? please help
  
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KZScott
Needs a life
high on speed
Posts: 7235
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posted June 26, 2010 12:42 PM
is the fan working?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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aliveagain
Needs a life
Posts: 5033
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posted June 27, 2010 04:26 AM
After it has all cooled down,check to make sure the level is full.While the cap is off,start and wait and see if the water starts moving after the bike warms up to see if the thermostat is opening.See if you can find some coil cleaner and flush the outside of the radiator, you would be surprised at what can collect in there.As Scott has asked,is the fan coming on? If I remember correctly,the A1 had issues with the fan melting on the motor shaft so when the motor kicked on, the fan didn't turn. Muzzy fan solves that problem.
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I wondered why the baseball kept getting bigger. Then it hit me.
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 27, 2010 07:25 AM
yep. fans workin, can feel it blowin hot air thro the vents either side of the fairing on my legs. has a slight dribble from the top on the header tank after gettin hot. hope it aint head gasket
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 27, 2010 07:27 AM
quote:
After it has all cooled down,check to make sure the level is full.While the cap is off,start and wait and see if the water starts moving after the bike warms up to see if the thermostat is opening.See if you can find some coil cleaner and flush the outside of the radiator, you would be surprised at what can collect in there.As Scott has asked,is the fan coming on? If I remember correctly,the A1 had issues with the fan melting on the motor shaft so when the motor kicked on, the fan didn't turn. Muzzy fan solves that problem.
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 27, 2010 07:28 AM
whats a muzzy fan
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KZScott
Needs a life
high on speed
Posts: 7235
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posted June 27, 2010 08:16 AM
http://www.muzzys.com/catalog/fans.html
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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aliveagain
Needs a life
Posts: 5033
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posted June 27, 2010 09:10 AM
So you would need the HT-H12 fan. Also don't use straight antifreeze.It doesn't transfer heat well.
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I wondered why the baseball kept getting bigger. Then it hit me.
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 27, 2010 09:56 AM
thanks for the advice guys. zx=new world for me
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KZScott
Needs a life
high on speed
Posts: 7235
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posted June 27, 2010 01:25 PM
how high is the idle set?
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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shiggsy
Expert Class
Posts: 128
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posted June 28, 2010 01:14 AM
 Edited By: shiggsy on 28 Jun 2010 09:14
Whats your definition of overheating? Is the gauge going into the red or flashing?
My definition of a working system would be the fan coming on in town or when stopped at lights.
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 28, 2010 02:06 AM
hey thanx for the reply dude. yep i agree with what your sayin, but she konks sometimes when hot (not in the red, just under) and then she wont start coz she is too tight, like flat battery ya know! this is only just started since the weather over here in the uk is hotter than usual, but even so that shouldnt make any difference should it.
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 28, 2010 02:19 AM
the idle is set at 1000rpm same as when i got her. sometimes she wavers up and down so i adjust on the adjuster on the right hand side near the throttle body.
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shiggsy
Expert Class
Posts: 128
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posted June 28, 2010 03:02 AM
Edited By: shiggsy on 28 Jun 2010 11:03
Manual says 1000rpm for idle but many find that too low, I have mine around 1150-1200.
Does it only have a problem restarting when its got really hot or does it do when you do something ordinary like stop for petrol? How old is the battery, it may be on the way out.
My fan comes on with the needle at the 10 oclock position. It will hit 11 oclock sometimes but not stay there for long. When does your fan kick in? I have sat in grid locked jams in London in 35 deegress of heat and the bike has coped fine.
Does the water in the expanson tank bubble up and boil when you stop the bike? If it does that would indicate a knackered rad cap.
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 28, 2010 03:38 AM
Edited By: jamiem on 28 Jun 2010 11:48
HEY. ONCE AGAIN THANX FOR THE INTEREST SHIGGSY. she only has the problem restartin when hot. the battery is the same one as when i bought her. i have no history as i bought her blind. from a company i used to work for, write offs and breakers, mostly cars. the water does bubble up when i stop her so it may be a faulty rad cap-hope so. the fan comes on the same time as yours so i may be just worryin bein the flapper i am. just dont want to lose her to a head gasket or somink daft.
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JOHNJ
Novice Class
Posts: 70
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posted June 28, 2010 04:49 AM
Buy a new battery, install some Engine Ice, Water Wetter.
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shiggsy
Expert Class
Posts: 128
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posted June 28, 2010 07:42 AM
Edited By: shiggsy on 28 Jun 2010 15:42
No problem, these boards have helped me out holes loads of times. Definitely fit a new rad cap and up the idle. If you get a chance, check your battery voltage, should be about 12.6v at rest with everything turned off. Life of these batteries tends to be 4-5 years.
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted June 29, 2010 08:31 AM
Get a new radiator cap, I think you can find a 1.6 bar one, or get the highest pressure one you can find. When filling, bleed very carefully per the manual and make sure you've got all the air out of the system. Load check the battery or just get a new one.
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It's not that I think you're dumb, it's just that so much of what you know isn't true....
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jamiem
Parking Attendant
breaker
Posts: 13
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posted June 30, 2010 12:45 PM
hey you lot. thanks for the advice, am gonna try out all your ideas etc. will be back. cheers. jamiem
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gob
Parking Attendant
Posts: 2
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posted July 01, 2010 02:05 AM
quote:
my zx 12 r keeps overheatin when stood at lights or in town centres. had looked for oil in water and vice versa, fluid ok. still gets hot. overfilled it once ages ago. any ideas anyone? please help
Had same prob with my 12...had radiator flush and add new coolant...no probs now with it....
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Greg
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