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Old April 28th, 2013, 12:45 PM   #1
contact148
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oil pressure light

so My bike is at 750 km now and today i noticed that the oil pressure light seems to today stay on for a few seconds longer then i noticed before

so how long should the light take to go out from a start warm and cold

today it was 17 c out

oil level is correct

oil and filter was changed at 385km

Oil used was castrol 10w40 NOT the motorcycle one

filter was a wix filter

was fine till today
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Old April 28th, 2013, 01:09 PM   #2
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....so how long should the light take to go out from a start warm and cold
No longer than a few seconds. Worry when it stays or comes on.
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Old May 2nd, 2013, 06:29 PM   #3
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well ive noticed that some times when bike is warm and its left for 30 mins or so when i restart it oil light stays ON till i rev it up a bit Idle is set at approx 1500rpm oil level is right at the top line checked today after 30 min ride left bike for 10 mins then checked oil level
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Old May 2nd, 2013, 07:30 PM   #4
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Does the oil look clean (like new)?

Increase idle some (~1800).

That will help the oil pump.
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Old May 2nd, 2013, 07:37 PM   #5
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oil is clean has 350ish km on it bike only has 850 km on it going to change oil on sat again
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Old May 2nd, 2013, 08:05 PM   #6
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What oil filter?
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Old May 2nd, 2013, 10:08 PM   #7
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Quote:
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well ive noticed that some times when bike is warm and its left for 30 mins or so when i restart it oil light stays ON till i rev it up a bit Idle is set at approx 1500rpm oil level is right at the top line checked today after 30 min ride left bike for 10 mins then checked oil level
Quote:
Originally Posted by contact148 View Post
oil is clean has 350ish km on it bike only has 850 km on it going to change oil on sat again
You shouldn't have to raise your idle speed that high to get sufficient oil pressure. You should have good pressure @ normal idle speed. Use a motorcycle specific oil on your next oil change.
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Old May 2nd, 2013, 11:09 PM   #8
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What oil filter?
this is a fantastic post as most people don't realize oil filter has a direct limiting factor on oil pressure... the oil has to go through the oil filter... if the oil filter doesnt let enough pressure through guess what happens!
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Old May 3rd, 2013, 04:19 AM   #9
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What oil filter?
Quote:
Originally Posted by alex.s View Post
this is a fantastic post as most people don't realize oil filter has a direct limiting factor on oil pressure... the oil has to go through the oil filter... if the oil filter doesnt let enough pressure through guess what happens!
Quote:
Originally Posted by contact148 View Post
.....Oil used was castrol 10w40 NOT the motorcycle one

....filter was a wix filter

....was fine till today
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Old May 3rd, 2013, 04:25 AM   #10
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What oil filter?
OP stated he used a Wix oil filter unless you know there's a different model of wix that fits our bike?

edit: Blue beat me to the it.
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Old May 3rd, 2013, 05:30 AM   #11
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this is a fantastic post as most people don't realize oil filter has a direct limiting factor on oil pressure... the oil has to go through the oil filter... if the oil filter doesnt let enough pressure through guess what happens!
If the built-in by-pass works properly, the pump will force the oil through the central tube-spring-ball, supplying the same pressure to the bearings.

However, that supplied oil will be dirty (not going through the paper cartridge), which is the second worse thing that can happen to the bearings and other frictional parts.

This case is very strange, because it is a new engine with proper oil in it.
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Old May 3rd, 2013, 07:21 AM   #12
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If the built-in by-pass works properly, the pump will force the oil through the central tube-spring-ball, supplying the same pressure to the bearings.

However, that supplied oil will be dirty (not going through the paper cartridge), which is the second worse thing that can happen to the bearings and other frictional parts.

This case is very strange, because it is a new engine with proper oil in it.
Are you checking oil with the bike level and off the kickstand?

Another possibility is loose wiring/bad terminal contact.
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Old May 3rd, 2013, 07:22 AM   #13
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.....This case is very strange, because it is a new engine with proper oil in it.

It's not that strange at all. Noticed what the OP said and did not say.

"...today it was 17 c out" (which it was warmer weather in his location than what it had been prior)

"....well ive noticed that some times when bike is warm and its left for 30 mins or so when i restart it oil light stays ON till i rev it up a bit" (A low idle speed at start up can cause the light to stay on until proper rpm speed is reached. A second or two for the light to go out is normal)

OP makes no mention of use of choke at start up or any other incidences when the bike is running (light flickering, overheating) just some times when noticed there appears to be an issue.
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Old May 3rd, 2013, 08:59 AM   #14
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Quote:
Originally Posted by contact148 View Post
Oil used was castrol 10w40 NOT the motorcycle one
Read this before the next oil change:

http://faq.ninja250.org/wiki/Preferr...not_be_used.3F

Also make sure that the bike is perfectly vertical (sideways) and on its tires and on flat surface when you check the level; a few degrees make a huge difference in the level shown through the visor.

As Blue mentioned above, it would be good for a better diagnostic to have duration and RPM data associated to the events that keep the light on.
He is spot on: if the initial rpms' are too low due to lack of choke, then the pump cannot develop enough pressure.

Turn the engine off if the light stays on more than a couple seconds and never twist the throttle up above ~2000 rpm trying to make it turn off.
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Old May 3rd, 2013, 10:24 AM   #15
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well when engine is warm no choke when cold choke the light stay steady ON its not flickering it ONLY happens when starting the bike and it seems to happen randomly

oil light NEVER comes on when driving

id say normal the light goes out after 2-3 secs when its staying on its like 10 secs if i blip the throttle to around 2k light goes out

Im draining the bike now couldent get another wix filter so i have a fram it will be same oil as i have a 5l jug of it

im waiting for my wife to leave the kitchen as im stealing her measureing cup, im going to measure the exact amount of oil the manual says to add with a filter change


when i check the oil bike is level on a leval surface
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Old May 3rd, 2013, 10:41 AM   #16
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.............when its staying on its like 10 secs if i blip the throttle to around 2k light goes out
That is an eternity !!!

That engine is going to get damaged soon if that is allowed to continue.

Are you sure that the oil filter has been properly installed?

If so, you will need to inspect and clean the relief valve beneath the clutch cover.

Just a crazy idea:
Your bike is a 2012 model that sit until you bought it in March 2013.
It is possible that the valve developed some light corrosion due to lack of oil flow for that long.

http://www.ninjette.org/forums/showthread.php?t=127077

Quote:
Originally Posted by contact148 View Post
brand new 2012 ninja 250 picked her up tonight havent rode it yet (cold dark and raining here)............
The attached test will tell you if the pressure is chronically low or if the light switch is the problem (not likely).
Attached Images
File Type: jpg Oil pressure measurement.JPG (90.9 KB, 15 views)
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Old May 3rd, 2013, 11:13 AM   #17
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.... it will be same oil as i have a 5l jug of it

Don't put the same brand /type oil in it. Just switch to a motorcycle oil so you can see if there is a difference between the two types. If you have a random flow problem at start up, chances are it's the oil, not the filter.
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Old May 3rd, 2013, 11:40 AM   #18
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ok oil change done new filter and the oil level is EXACTLY where it should be i put a level across the tank and checked oil level when bike was perfectly level

started it up seems to be ok now just going to go for a ride then i should know

as far as tearing it apart if it continues ill put the orig factory oil and filter back in ( i saved them) and take it to the dealer they can deal with it its under warrenty for 2 years

well it seems to be better i went on the hwy for a few km left bike for 10 mins or so restarted it and oil light went out right away

Last futzed with by contact148; May 3rd, 2013 at 12:43 PM.
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Old May 25th, 2013, 07:26 PM   #19
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well the troubles still continue I had it at the dealer for its 1000km service starting a few days after the oil light stays on from 5 to 10+ secs at idle

today i went for an 80km rnd trip 50% hwy 50% city i stopped for 15 mins restarted bike with NO choke idle set at 1500 rpm (by the dealer)

oil light stayed on for 10 secs till i blipped the it to 2k rpm and light turned off oil level is 100% correct

the oil light ONLY stays on randomly at start up it will do it for a day or more then be good for weeks I cant ever count on it ive tried to film it be every time i have the cam it goes right out!

Im going to call the dealer on monday as i still have 2 years warrenty
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Old June 17th, 2018, 04:52 PM   #20
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I seem to have developed the same issue recently after changing oil (same oil kawi synth 10 40) but used a hi flo filter. Im wondering if that was a wise decision lol.

Ive been reading all related threads.
Will try filter change soon ....
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Old June 20th, 2018, 09:09 AM   #21
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Changed filter to kn-401 last night, now the light is turning off as soon as engine starts. will monitor it.

But... I found a small o-ring in the drained engine oil. I am trying to understand where this could have come from. It looks the same size as the small o-ring that is supplied with the oil filter, but the old one was still in place when i took the old filter out. What o-ring could this possibly be? Could it be the crankcase oil passage o-ring? Not sure where to look ......
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Old June 20th, 2018, 09:59 AM   #22
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rubber or metal O-ring?
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Old June 20th, 2018, 10:03 AM   #23
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rubber.

the only thing i can think of is when i changed the oil filter the previous time i didnt remove the small o ring and put one on top of the old one? I did think at the time that it seemed kind of loose. But honestly i cant really see me doing that.
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Old June 20th, 2018, 10:50 AM   #24
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Rubber flat O-ring about 20mm diameter? or 15m round O-ring?
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Old June 20th, 2018, 11:06 AM   #25
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round o-ring. i guess yes 15mm round one
it looked exactly like the one that goes onto the metal shaft that the oil filter sits on. the black rubber small o ring
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Old June 20th, 2018, 02:19 PM   #26
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Yeah, don't lose that one. Make sure you put it back on centre-bolt.
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Old June 20th, 2018, 04:34 PM   #27
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Sorry, center bolt???
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Old June 20th, 2018, 07:48 PM   #28
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The metal shaft that holds the entire filter + cover assembly together.
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Old June 21st, 2018, 06:54 AM   #29
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Quote:
Originally Posted by Cep View Post
Changed filter to kn-401 last night, now the light is turning off as soon as engine starts. will monitor it.

But... I found a small o-ring in the drained engine oil. I am trying to understand where this could have come from. It looks the same size as the small o-ring that is supplied with the oil filter, but the old one was still in place when i took the old filter out. What o-ring could this possibly be? Could it be the crankcase oil passage o-ring? Not sure where to look ......
I'm thinking it was one that for some reason came off of the filter "bolt" at some point.

Odd, but if the bike was purchased used you never know...

As long as you have one on the filter assembly I wouldn't worry about it.
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