August 19th, 2012, 09:08 PM | #1 |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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possible oil leak?
hey guys, finally got my bike up and running and I'm running into problem... again.
every once in a while I'll see a bunch of smoke start coming out from between the engine and the left fairing. It comes out in a considerable amount for about 10 seconds then stops. Any ideas for what to look for tomorrow? I'm not seeing any loss in power and my oil light is not coming out. I wiped the inside fairing with my fairing after I got off and all I got was normal road grime, nothing oily. |
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August 19th, 2012, 09:21 PM | #2 |
ninjette.org certified postwhore
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.
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does it smell like burnt oil?
are you riding in the rain?
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August 19th, 2012, 09:40 PM | #3 |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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Smells like burned oil. It rained yesterday, but my bike was dry today.
I'm not sure if it's something I used to clean my fairings or the heat tape burning on the bottom, or oil. There are so many oil based things down there. |
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August 19th, 2012, 11:38 PM | #4 |
ninjette.org sage
Name: Byron
Location: Reno, NV
Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761
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smell coming from the air box? could just be the crankcase venting off alot. mine does that too and sometimes smokes white a bit and can spit some oil out.
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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August 19th, 2012, 11:44 PM | #5 | |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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Quote:
I'm just shooting random ideas out but it could possibly be a loose valve cover? I tightened them to spec last time I checked. |
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August 19th, 2012, 11:48 PM | #6 |
ninjette.org sage
Name: Byron
Location: Reno, NV
Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761
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you know what it might be. I have had a liquid spray on my engine and leak on my headers and fairings and even got to around my leg area via gas tank. Turns out was my fork seals were bad and was spraying oil everywhere. Thought it was coming from valve cover too but was my fork seals. could look there. I used to get oil on the inside of my fairings and bottom side of my tank and would leak down on my boots. try looking there.
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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August 20th, 2012, 12:28 AM | #7 | |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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Quote:
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August 20th, 2012, 12:35 AM | #8 |
ninjette.org sage
Name: Byron
Location: Reno, NV
Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761
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probably not. mine would only get really oily on hot days and when i road around town so like bumpy roads but it all depends on the fork seals, thats if it is the seals. You could try to pump on the handle bars and see if alot of the fluid stays on the tops of the forks. look under the gas tank my forks were spraying that with oil
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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August 20th, 2012, 11:03 AM | #9 |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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I looked around my bike and no dice. Seems the oily stuff was just paint peeling off my headers so I don't it's the fork seals.
my inner fairings looked foil free and the ground under my bike had no spots. No idea what could be burning down there but I'll try riding it around today and seeing what comes up. I think it could possibly be the old heat tape burning up as it peels away from old age, so I'll replace that soon/ take it off and see what happens. |
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August 20th, 2012, 11:43 AM | #10 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
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MOTM - Oct '12, Feb '14
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do you have a stock crank case breather that goes into the intake? or a separate breather element.
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August 20th, 2012, 12:16 PM | #11 |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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August 20th, 2012, 12:19 PM | #12 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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do you have pod filters or a normal airbox. check under the airbox if you have it, theres a tube that runs from the engine crank case to the airbox. this is called the crank case breather and its there cause you know you have the pistons going up and down and gases expanding and stuff and it needs somewhere to go, so at the top of the case theres a hole that leads up through a snaking tube to the airbox for it to breathe. sometimes smoke from the oil comes through there but it gets sucked back into the intake and gets spit out the exhaust. if that tube isnt connected a little bit of smoke can come out. if it is open and oil gets splashed up through the hole, it can sit ontop the crank and make some smoke
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August 20th, 2012, 12:54 PM | #13 | |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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Quote:
The breather tube is located near the center right? About to go ride and see if the issue comes up again and if I can tell where in the day light. |
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August 20th, 2012, 01:47 PM | #14 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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where is your water reservior drain line located? look at your exhaust where the smoke comes from, is it all white? look at your water reservior, is there coolant on the outside? does it do it when its nice and hot on a hot day?
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August 20th, 2012, 01:52 PM | #15 |
ninjette.org sage
Name: Byron
Location: Reno, NV
Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761
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yeah its right in the center. right under the carbs
__________________________________________________
1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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August 20th, 2012, 11:44 PM | #16 | |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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Quote:
My exhaust is not white, it doesn't look like anything has dripped on to it at all. Yes, the smoke is white. Is that a sign of burning oil? I'm forgetting if burning oil was blue or white smoke. |
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August 21st, 2012, 11:44 AM | #17 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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burning oil is typically blueish but it depends on where and how hot it burns. if it was on the outside of the case it would probably look light bluish grey. the radiator is a closed system unless the water boils, the pressure becomes too much and the system has to purge the excess into the surge tank (the water "resevior"), once it cools down, a vacuum develops in the water system and pulls the extra back into the system. if it purges too much there is a drain line on the surge tank that leads down to the bottom of the bike. water and coolant typically burn white smoke. there are lots of water hoses going around there and if some spilled onto the engine it would evaporate/burn/disperse very quickly.
what im trying to get at is the surge tank might look normal and your radiator is actually low if the surge line isnt leading to the surge tank. or maybe you just really had to piss and didnt know it.
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August 21st, 2012, 01:35 PM | #18 | |
I told you bro
Name: Noor
Location: Austin, Texas
Join Date: Jun 2012 Motorcycle(s): 1996 Ninja 250r Posts: 680
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Quote:
Thanks for the help guys, I'll check it out and see what I can find out |
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