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constant oil light

Discussion in 'Yamaha 250cc In-Line 4's' started by dylandbox90, Feb 10, 2013.

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  1. dylandbox90

    dylandbox90 New Member

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    allright so the bike is a 90 fzr hasent been started for about 5 year as far as i now up andtill last week.arfter a good clean out of the carbs and new coils plugs battery and a bit of start ya basted and she ran fine but has the oil light on. it was a bit low not much couple hundred ml so fulled it up and started it up again and same prob let it warn up for a bit not to long still remains on was hoping for a bit of advice or maybe someone with the same prob enything would be greatly greatly appreiciated. thanks dylan
     
    dylandbox90, Feb 10, 2013
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  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    First thing I would do is change the oil filter .......and replace all the oil.....what oil are u using?

    Check the oil level via the sight glass ( low on the right side of the motor )

    If its a 3LN1 (Deltabox frame,twin front discs) you need to remove the headers to get at the filter cover .

    Also check the oil level sensor next to the filter cover (It looks like this http://www.ebay.com.au/itm/Yamaha-F...rcycles_Parts_Accessories&hash=item35c085cade ) and that the wire from it is not disconnected or damaged.

    <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt=":D" title="Very Happy" /><!-- s:D -->
     
    GreyImport, Feb 10, 2013
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  3. dave

    dave Well-Known Member

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    First thing to remember is that the FZR250 oil light is driven by a LEVEL switch, not a pressure switch. LOW level brings on the oil light.
     
    dave, Feb 11, 2013
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  4. dylandbox90

    dylandbox90 New Member

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    cheers man thort it may be some thing along those lines iv only ener had dirtbikes didnt now ware to start looks like its been replaced befor but i now the bikes been sitting around for ages em going to just replace it is the 400 sencer the same or must be for the 250 thanks again for your help much appreciated
     
    dylandbox90, Feb 13, 2013
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  5. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Ill just continue talking to myself then?

    <!-- s:huh: --><img src="{SMILIES_PATH}/th_Huh.gif" alt=":huh:" title="huh" /><!-- s:huh: -->
     
    GreyImport, Feb 13, 2013
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  6. dylandbox90

    dylandbox90 New Member

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    what huh i listened to ya man
     
    dylandbox90, Feb 13, 2013
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  7. dylandbox90

    dylandbox90 New Member

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    had enough oil in it for sure drained just over 2lt out of it thort that at first but made sure by putting in a touch more could it be something along the lines of the oil pump the heads do sound a bit loud not sure if thats a bit of a thing with them but does sound like its lacking oil there would that make the oil light stay on thanks again guys
     
    dylandbox90, Feb 13, 2013
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  8. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    I thought u missed my post <!-- s:shock: --><img src="{SMILIES_PATH}/icon_eek.gif" alt=":shock:" title="Shocked" /><!-- s:shock: -->

    Sure its fine that u put in 2 litres and u can drain 2 litres but is that oil flowing around the motor?

    Again Ill say ..... change the oil filter for starters and while u are at it remove the oil sensor and see if its damaged.

    Again have u checked the wiring for the sensor? Is it plugged in? ...is the wire bent and therefore could be broken internally?

    Again can u see the oil in the sight glass?

    Again what type of oil are u using?

    Start with the simple and easy things first <!-- s:-? --><img src="{SMILIES_PATH}/icon_Eyecrazy.gif" alt=":-?" title="Eye Crazy" /><!-- s:-? -->
     
    GreyImport, Feb 13, 2013
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  9. dylandbox90

    dylandbox90 New Member

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    the sensor was plugged in, the wires are intact and not kinked and i could see the oil in the window and have now drained it. i will replace the oil and filter in a couple days and check the sensor for damage at the same time as i have not yet removed it. i do not know wich wieght oil to use, but will check with the shop to make sure i purchase the correct one. i will post a reply as soon as i have completed these things. cheers dylan
    .
     
    dylandbox90, Feb 14, 2013
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  10. dave

    dave Well-Known Member

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    If the oil sensor is unplugged the the light should not be illuminated. If it is on, you have a short in your wiring somewhere.

    My oils light used to come on at odd times, I think it was when I was going up my driveway (very steep) and hit the brakes to stop.
     
    dave, Feb 15, 2013
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  11. dylandbox90

    dylandbox90 New Member

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    like i said befor had drained the oil. iv checked the sensors by pulling them out when it was drained looked to be in good condition.replaced old oil filter.changed the oil/sae_30 is what i put in it.oil is visible in window. when bikes on its stand it sits at over half the window.and just over the top ov the window when the bikes strait up and still got the oil light on
     
    dylandbox90, Feb 25, 2013
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  12. dave

    dave Well-Known Member

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    OK disconnect the wire off the sensor and see if the light goes out.
     
    dave, Feb 25, 2013
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  13. dylandbox90

    dylandbox90 New Member

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    unplugged sensor and oil light still on
     
    dylandbox90, Feb 25, 2013
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  14. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    What color light is it? <!-- s:shock: --><img src="{SMILIES_PATH}/icon_eek.gif" alt=":shock:" title="Shocked" /><!-- s:shock: -->
     
    GreyImport, Feb 26, 2013
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  15. dylandbox90

    dylandbox90 New Member

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    (when red wire connected)red oil light go's on arfter the ignition is on but only when you hit the start button to start it (when red wire disconnected)red oil light go's on as soon as you turn on the ignition...not sure if this helps but green neutral light stay's on thought out both, connected and not connected.
     
    dylandbox90, Feb 26, 2013
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  16. dontz125

    dontz125 Active Member

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    Good point - perhaps the OP should strip and clean the Start button.
     
    dontz125, Feb 27, 2013
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  17. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Key on = red oil light on and green neutral light on

    Kill/start switch on = red light off ,green light on, fuel pump prime, exup motor sets valve.

    Sounds like your wiring is wrong/damaged ....check the loom from the right hand switchgear and then as Don suggests ,the kill/start switch needs a look at ....as after 20+ years it may be full of corrosion and crud.
    I would remove the whole thing and open it up and clean and put a bit of something like WD40 in there.
    Be careful when u dismantle as there are lots of bits inside and remember how it goes back together!
     
    GreyImport, Feb 27, 2013
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  18. dontz125

    dontz125 Active Member

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    I disagree; the neutral light comes on with the key and stays on whenever - and only if - the transmission is in neutral. There is no test function of the neutral light.

    The low oil level light only comes on while the start button is pressed (key and kill switches on, obviously).

    The fuel pump primes and the EXUP valve goes through its clean cycle when the key and kill switch are on; the start button is not involved in these functions.
     
    dontz125, Feb 27, 2013
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  19. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Yea sorry you are correct !.........Im doing 10 things at once here <!-- s:-? --><img src="{SMILIES_PATH}/icon_Eyecrazy.gif" alt=":-?" title="Eye Crazy" /><!-- s:-? --> ..... the start button shouldnt be included in my summation!

    Key on = red oil light on and green neutral light on

    Kill switch on = red light off ,green light on, fuel pump prime, exup motor sets valve.
     
    GreyImport, Feb 27, 2013
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  20. dontz125

    dontz125 Active Member

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    Without rudeness, you may want to re-read my post ...
     
    dontz125, Feb 27, 2013
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