Author Topic: oil light on after oil change  (Read 1128 times)

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Offline tercopete

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oil light on after oil change
« on: March 14, 2019, 12:02:43 am »
Due to the high milage (46,172.5) of my 94 Kawasaki ZG1000 I went from regular oil to syntheic oil however i noticed the oil light would flicker and i went to the show that did the work andd the rocked bike left to right while looking at the oil level window and he states oil level is correct  but it doesnt account for the RED Oil level light coming on from a flicker to constantly on .  WHAT CAN BE THE REASON FOR THE WARNING LIGHT ON  PLEASE HELP

Offline MAN OF BLUES

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Re: oil light on after oil change
« Reply #1 on: March 14, 2019, 12:24:42 am »
did YOU actually look, and verify the level was correct?

if not, well... look.


 :-[

or, it could be a loose wire somewhere...

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Offline JS

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Re: oil light on after oil change
« Reply #2 on: March 14, 2019, 01:06:55 am »
What is the water temp when the flicker begins? What weight synthetic oil was used? Was the oil and filter replaced according to procedure?
46,000 on a properly maintained and not abused zg1000 is low mileage. Drain the oil and inspect the oil for bearing particles. Slowly remove the oil filter and check if it was installed correctly with no missing components. Check the oil filter for bearing particles. Also, see if there is a way to check the oil pressure with a gauge. A flickering oil waning light needs a bit more attention than rocking the bike.
« Last Edit: March 14, 2019, 01:21:13 am by JS »

Offline MAN OF BLUES

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Re: oil light on after oil change
« Reply #3 on: March 14, 2019, 01:42:52 am »
What is the water temp when the flicker begins? What weight synthetic oil was used? Was the oil and filter replaced according to procedure?
46,000 on a properly maintained and not abused zg1000 is low mileage. Drain the oil and inspect the oil for bearing particles. Slowly remove the oil filter and check if it was installed correctly with no missing components. Check the oil filter for bearing particles. Also, see if there is a way to check the oil pressure with a gauge. A flickering oil waning light needs a bit more attention than rocking the bike.

 :-X :-X

well I feel really dumb now, asking him to check the oil level in the window...

 :-[ ::) ::)

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Offline tercopete

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Re: oil light on after oil change
« Reply #4 on: March 14, 2019, 11:06:06 am »
Will physically check oil window while on center stand and with flash light for better seeing, will advise all. Stay tuned.

Offline ron203

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Re: oil light on after oil change
« Reply #5 on: March 14, 2019, 11:13:20 am »
Check it immediately after riding because the oil "hides" after 15 minutes or so.

Also, does your bike have a SPOOFAK (Spin On Oil Filter Adapter Kit)? If so, it takes a little more oil than stock.
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Offline fred-houston

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Re: oil light on after oil change
« Reply #6 on: March 14, 2019, 11:24:22 am »
I agree with MOB, before you start tearing into anything I would check the oil level.  The way I have always checked my oil on my C10 is to run the engine up to operating temperature on center stand, wait 10 to 15 minutes and then check the level.  Ideally you should see the oil level halfway between the low and high mark.

Now saying that, if you have a continuous oil light on, I don't think I would run the engine that long.  I, and notice I said "I", would do another oil change, ensuring that I put the proper amount of oil in.  After that, if I still had an continuous light, I would start looking elsewhere.
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Offline DC Concours

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Re: oil light on after oil change
« Reply #7 on: March 14, 2019, 05:07:13 pm »
check the oil levels, filter etc., etc as recommended. perhaps your passages are blocked from sludge. perhaps go back to the oil you have been using. synthetic shouldn't cause adverse issues but if this was the only variable go back to what worked.

in my ex500 many years ago when i changed from dino to synthetic and on the first ride I had the oil light came on once. i stopped the bike immediately, checked around and everything was fine. started back up and the light never came back again.

take care of this before you keep riding on an oil deprived engine.

Offline ZXtasy

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Re: oil light on after oil change
« Reply #8 on: March 14, 2019, 05:26:31 pm »
Oil pressure sending unit, could be bad or the wire disturbed.
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Offline Sparkie

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Re: oil light on after oil change
« Reply #9 on: March 14, 2019, 10:14:26 pm »
  When I had my 2006 C10 the oil light came on a couple of times due to oil pumps that were apparently a little out of spec.  I had the Spoofak and after oil changes the light would tend to stay on until I figured out a proper oil change routine.  Basically they can become airlocked and not pump oil.  This could also happen under heavy braking.  If you're using the Spoofak let us know and I'll post up what I found to solve that issue.  Mark
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Offline MAN OF BLUES

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Re: oil light on after oil change
« Reply #10 on: March 14, 2019, 10:45:44 pm »
SPOOFAC actually gives faster oil supply to the engine during a filter change, when prefilling like it is/was designed for.. read the instructions...

a for the light, again I suggest looking at the sensor wire..and checking the REAL level in the window.

as for "blocked passages" in the engine...?
you drain oil, and refill it to correct level.... blocked passeges?  tell me more...
it all end up in the sump.... o if anything, you would experience an over fill...

 :rotflmao: :rotflmao: :rotflmao: :rotflmao: :truce: :truce: :truce: :rotflmao: :rotflmao: :rotflmao:

 which by the way, ain't good either..

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Offline ron203

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Re: oil light on after oil change
« Reply #11 on: March 15, 2019, 01:13:25 am »
  When I had my 2006 C10 the oil light came on a couple of times due to oil pumps that were apparently a little out of spec.  I had the Spoofak and after oil changes the light would tend to stay on until I figured out a proper oil change routine.  Basically they can become airlocked and not pump oil.  This could also happen under heavy braking.  If you're using the Spoofak let us know and I'll post up what I found to solve that issue.  Mark

The directions that come with the SPOOFAK when it's new give instruction on how to prime the situation. Dan Bergman apparently found an issue or he wouldn't have included those.
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Offline tercopete

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Re: oil light on after oil change
« Reply #12 on: March 15, 2019, 02:49:12 pm »
standard filter K&N 401 oil is in slightly past middle of oil view finder

Offline DC Concours

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Re: oil light on after oil change
« Reply #13 on: March 15, 2019, 03:05:59 pm »
Other than rock the bike and look at the oil level what else have you done to investigate or remedy the problem?

Online Bob_C_CT

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Re: oil light on after oil change
« Reply #14 on: March 15, 2019, 04:23:39 pm »
By the oil filter you mentioned it is the stock oil filter assembly and not a SPOOFAK.

So from the first post it seems that you brought it back to the place that did the oil change when you had the light flicker?

Did you put it on the centerstand and wait 15 or so minutes to see the 1/2 full sightglass?
I never use the sight glass, too much variation of level. Right after shutdown (sight glass all full) to the next day (when it looks too low, near empty).

Did they write down how much oil they put in the bike. 3 liters is specified when draining both drain plugs and new filter, if they went by the sight glass upon filling and stopped at 1/2-3/4 full sight glass, maybe there's not enough oil in it.

It may be best to drain the oil from both drain plugs into a clean container and see how much oil is in there. Take pictures in case it wasn't near 3 liters to let them know.


Good luck
« Last Edit: March 15, 2019, 04:31:58 pm by Bob_C_CT »
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Offline tercopete

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Re: oil light on after oil change
« Reply #15 on: March 15, 2019, 10:01:04 pm »
will try your sugestion and will advised   thankn you all for input i wilkl keep everyone informed

Offline IBAJIM

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Re: oil light on after oil change
« Reply #16 on: March 15, 2019, 11:28:49 pm »
Is the oil pressure light flickering at idle or at any RPM ?   If only at idle, what weight oil was put in at the oil change ?
If proper weight oil was used,  you could have a funky sending unit.  It could just be a coincidence the light started flickering after the oil change.  Stranger things have happened.

If the proper weight was used, I would first change the filter and see what happens ( do the easy thing first ) .   If a new filter doesn't make a difference, then I would change the oil sending unit.

If the light is on all the time, could be a bad connection/broken wire/etc. at the oil sending unit.
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Offline TimR

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Re: oil light on after oil change
« Reply #17 on: March 17, 2019, 12:13:11 am »
Wasn't there a run of out of spec oil pumps? I thought they were later than 94 but don't know for sure.
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Offline Thud300

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Re: oil light on after oil change
« Reply #18 on: March 17, 2019, 12:57:27 am »
Due to the high mileage (46,172.5) of my 94 Kawasaki ZG1000 I went from regular oil to synthetic oil however i noticed the oil light would flicker and i went to the shop that did the work and they rocked bike left to right while looking at the oil level window and he states oil level is correct  but it doesnt account for the RED Oil light coming on from a flicker to constantly on .  WHAT CAN BE THE REASON FOR THE WARNING LIGHT ON  PLEASE HELP

Kinda fixed it for ya.  ;D

first questions are, exactly what oil and weight did the shop that did the work put in it? What was in it before?

You shouldn't see that light at all unless the bike is KOEO (key on engine off), at least that's how it works on my 98 with similar mileage. Not even flickering. Most guys would agree that the light will turn off during extended cranking, like after a long sit.

Your best call would be to verify the oil level, and ask the shop to substitute a mechanical oil pressure test gauge in place of the oil pressure switch. That way you can easily determine if it's an engine problem, or something else.

The only way I trust the sight glass is after an overnight sit on the centerstand, you should see an oil level in the middle to top half of it. If you can't see the line, it's either too full or not full enough. Use a strong flashlight.

Question for the hive mind, at what pressure does the switch close/open to activate the light?

« Last Edit: March 17, 2019, 02:58:17 am by Thud300 »
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Offline Bud

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Re: oil light on after oil change
« Reply #19 on: March 17, 2019, 10:59:56 am »
Wasn't there a run of out of spec oil pumps? I thought they were later than 94 but don't know for sure.
IIRC it was the 2006 that had oil pump issues.
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Offline tdbru

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Re: oil light on after oil change
« Reply #20 on: March 28, 2019, 04:17:53 am »
yep, it was the 2006 models that had that problem.  my '06 had that problem.  i picked up a used zg1000 oil pump and got the clearances set right, swapped it out, and never have had the oil light on during hard braking again.  some of the stock oil pumps that year had excessive end clearances and would lose prime under hard braking.  once i got the clearances set correctly, the problem went away.  but that was a major PIA to tear the bottom end of the motor out and swap out oil pumps.  if you decide to do that,..... check the new banjo gaskets.  i had a new one that had a crease in it, and didn't know it, and had an oil leak that drove me nuts for awhile.  once i noticed the crease in the compression gasket and swapped it out for a good one, the oil leak went away.  one doesn't expect a new compression gasket to be defective from the factory, but one out of the bunch for me was.  good luck!

p.s. i don't think your problem is your oil pump.  wrong year for that.  change the oil yourself and make sure it's done right and all the parts are there.  there is a washer that often get's missed and get's tossed out.  look at the exploded parts diagram.  if you intend to keep if for awhile, and don't mind a little wrenching, i sure appreciate the SPOOFAK i put on mine.  makes DIY oil changes just that much easier.

-tdbru

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Re: oil light on after oil change
« Reply #21 on: March 28, 2019, 01:55:48 pm »
Quote
at what pressure does the switch close/open to activate the light?

I think that's just a level sensor, not a pressure sensor.
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Offline bajasam

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Re: oil light on after oil change
« Reply #22 on: March 28, 2019, 02:34:43 pm »
it's a pressure switch, a level sensor would never work on a bike as there is no constant level,its always changing due to leaning in turns ,accelerating and braking etc.

Offline Gitbox

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Re: oil light on after oil change
« Reply #23 on: March 28, 2019, 03:37:55 pm »
You are correct. I assumed since the C10 was an old design like my 80's Yamaha XJ's, that they were just level sensors.  :-[

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Offline MAN OF BLUES

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Re: oil light on after oil change
« Reply #24 on: March 28, 2019, 07:20:10 pm »
Due to the high mileage (46,172.5) of my 94 Kawasaki ZG1000 I went from regular oil to synthetic oil however i noticed the oil light would flicker and i went to the shop that did the work and they rocked bike left to right while looking at the oil level window and he states oil level is correct  but it doesnt account for the RED Oil light coming on from a flicker to constantly on .  WHAT CAN BE THE REASON FOR THE WARNING LIGHT ON  PLEASE HELP

Kinda fixed it for ya.  ;D

first questions are, exactly what oil and weight did the shop that did the work put in it? What was in it before?

......

Question for the hive mind, at what pressure does the switch close/open to activate the light?

I would like to know the answer to the first question also... this engine was never really designed to put "pressure reliably" using a 5 weight oil..... and with age and time, any degradation to the pump as it aged, when asking it to keep "pressure at XX psi", simply tells me to never use less than a 10wXX oil.
Does the light go out as the bike is ridden, raised above 3-4k rpm, and held there?

as for the pressure switch "values/inspection", there is nothing written in any of the manuals, explaining a "test" of that switch, other than when pressure is present the circuit is open, and when the engine is off, or "no pressure" is on it, the circuit is closed, and light goes on. If the switch is good, but the wire is loose, it will be an intermittent flashing warning, because of the wire... If the switch is bad, even if the wire is connected, it can make the light stay ON; this is based on "if sufficient oil pressure is present".
Is it the switch?, is it the pump? is it the low viscosity oil? I dunno....

Normal pressure rating for the oil pump output, via the circuit flow, should be;
38 to 47 psi, @ 4000 rpm, w/ oil temp @ 194*F (note; there is no data on "at idle" pressure...)
If it is "substantially less" (as stated in the FSM's, with no regard to what they mean by "substantially"), then they go into the oil pump examination and repair.

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