Oil in my airbox

Cereal · September 17th, 2014, 05:52 PM

I have oil leaking from the air box on my 2009 ninja 250. Could the cause of this be because I over filled the oil?

cuong-nutz · September 17th, 2014, 06:00 PM

Welcome to the forum! Spend some time and create an introduction thread and tell us about yourself and bike!

Cause for oil in the airbox:

1. overfilling the crankcase.
2. you lowsided your bike or tipped it over.
3. you overoiled your stock air filter.

The airbox drain is located on the left side just above the front sprocket. It's there for a reason since the bike is leaned over on the kickstand side and oil settles to that side.

Cereal · September 17th, 2014, 06:03 PM

Thank you, I will do that. But can this be harmful to my bike?

cuong-nutz · September 17th, 2014, 06:08 PM

Quote:

Originally Posted by Cereal

Thank you, I will do that. But can this be harmful to my bike?

Overfilling the crankcase is overtime. Just drain some out and you'll be good. Also, drain the airbox too and wring out the the excess oil on the air filter. Make sure you are checking the oil height with the bike standing upright and not on it's kickstand. Bike has to be perpendicular to the ground to get an accurate reading on the sight glass. If you started the bike and just turned it off, wait a few minutes for the oil to setting back down into the crankcase and measure. Otherwise you will just end up overfilling again.

xorbe · September 17th, 2014, 06:30 PM

There's a tube hooked up to the airbox drain right? The tube is manually plugged at the end, is that normal? (Used bike.)

Asspire · September 17th, 2014, 06:38 PM

yep

subxero · September 18th, 2014, 07:54 AM

you can get some oil there if you are doing wheelies as well

September 17th, 2014, 05:52 PM	#1
Cereal ninjette.org newbie Name: Wyatt Location: St George utah Join Date: Sep 2014 Motorcycle(s): 2009 ninja 250r Posts: 4	Oil in my airbox I have oil leaking from the air box on my 2009 ninja 250. Could the cause of this be because I over filled the oil?

September 17th, 2014, 06:00 PM	#2
cuong-nutz RIP Alex Name: Cuong Location: Houston, TX Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot. Blog Entries: 2	Welcome to the forum! Spend some time and create an introduction thread and tell us about yourself and bike! Cause for oil in the airbox: 1. overfilling the crankcase. 2. you lowsided your bike or tipped it over. 3. you overoiled your stock air filter. The airbox drain is located on the left side just above the front sprocket. It's there for a reason since the bike is leaned over on the kickstand side and oil settles to that side. __________________________________________________ HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days

September 18th, 2014, 07:54 AM	#7
subxero dirty boy Name: Joe Location: Johnstown, PA Join Date: Sep 2012 Motorcycle(s): I don't even know anymore?? Posts: A lot. MOTM - Apr '14	you can get some oil there if you are doing wheelies as well __________________________________________________ I love the smell of burning pre-mix in the morning I don't think I'm a lot dumber than you thought that I think that I thought I was once.

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September 17th, 2014, 06:03 PM	#3
Cereal ninjette.org newbie Name: Wyatt Location: St George utah Join Date: Sep 2014 Motorcycle(s): 2009 ninja 250r Posts: 4	Thank you, I will do that. But can this be harmful to my bike?

September 17th, 2014, 06:30 PM	#5
xorbe ninjette.org guru Name: xorbe Location: Bay Area, CA Join Date: Jun 2013 Motorcycle(s): N650 (and others) Posts: 408	There's a tube hooked up to the airbox drain right? The tube is manually plugged at the end, is that normal? (Used bike.)

September 17th, 2014, 06:38 PM	#6
Asspire Fix It Till Ya Break It Name: Asspyre Location: T.Dot Join Date: Oct 2011 Motorcycle(s): 08 250RRrrrr Posts: 623	yep