Oil in the air box. - Wrist Twisters
 
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post #1 of 15 Old 03-22-2009, 01:39 AM Thread Starter
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Oil in the air box.

While I was doing the valve inspection, I noticed a black substance on the outside of the air box right where it starts to connect to the fuel injectors. Just on the left side though. I traced it all the way down to the air cleaner. Opened her up and what do you know. Oil and dirt (pretty sure about that one) inside the air box. Anyone else ever come across this? I am thinking lots of reasons, but not sure where to start. Since it is just one side, bad injector? Bad gasket or seal? Piston ring? Or is it just simply from downshifting? I cleaned it all up, but forgot to take pics before hand. I am going to ride it for a couple of days and see if it comes back. Have to get a new air filter though. Thanks.

Brian

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post #2 of 15 Old 03-22-2009, 05:27 AM
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Brian,

I saw the same thing on the left side of my bike after getting it out after winter. I also noticed just the smallest sign of oil seepage around the left side valve cover gasket. I didn't have any oil on the filter, but did have a few drops worth inside the intake/cover. I know this doesn't help you but it is nice to know I'm not the only one who had a little oil in the airbox.

-Chris

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post #3 of 15 Old 03-22-2009, 05:30 AM
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its most likly comming from the crankcase breather. this happens when there is too much oil in the crankcase.

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post #4 of 15 Old 03-22-2009, 03:28 PM Thread Starter
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Quote:
Originally Posted by 3dcycle View Post
its most likly comming from the crankcase breather. this happens when there is too much oil in the crankcase.
I thought about that when I looked. The breather had a tiny bit of oil at the bottom (which I cleaned out), but it wasn't anywhere near full. Heck, half-full for that matter. My air filter reeks like oil though.

I am definitely not passing up the fact that I might have put a little too much oil in on the last oil change. I just changed it Thursday so I'll see what happens this week. Thank you. I am really hoping it still came from the breather.

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post #5 of 15 Old 03-22-2009, 09:43 PM
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From doing wheelies or dropping your bike.

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post #6 of 15 Old 03-23-2009, 06:02 PM
 
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Quote:
Originally Posted by 3dcycle View Post
its most likly comming from the crankcase breather. this happens when there is too much oil in the crankcase.
+1

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post #7 of 15 Old 03-24-2009, 01:36 AM Thread Starter
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Quote:
Originally Posted by ragdoll View Post
From doing wheelies or dropping your bike.
I can't remember the last time I popped a wheelie, haven't dropped the bike lately either. To be honest.

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post #8 of 15 Old 03-24-2009, 12:55 PM
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Check the loose nut behind the handle bars.

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post #9 of 15 Old 03-24-2009, 02:03 PM
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you can't remember the last time YOU have, but for one example, i used to know where my friend Dan's older brother kept the key to his CX500 Custom.

yeah, i don't think Ron ever figured out how that turn signal got scraped the way it did. "the way it did" being me running it off the road and into the snow, scraping it on some gravel along the way.

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post #10 of 15 Old 03-24-2009, 02:19 PM
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You mean sombody could be riding my 9er right now?

Dan


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post #11 of 15 Old 03-24-2009, 02:26 PM
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one word for you: webcam.

also, you think YOU got it bad? i recently noticed air in my bike's oil box !

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post #12 of 15 Old 03-24-2009, 03:55 PM Thread Starter
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Quote:
Originally Posted by hasbeenracer View Post
Check the loose nut behind the handle bars.
Checked that one. He is torqued.

Quote:
Originally Posted by bucky View Post
one word for you: webcam.

also, you think YOU got it bad? i recently noticed air in my bike's oil box !
Yikes that sucks. But a shop vac and some real quick moves to put the oil cap back on should do the trick.

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post #13 of 15 Old 05-01-2009, 09:18 AM
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Quote:
Originally Posted by hasbeenracer View Post
Check the loose nut behind the handle bars.
can you please be a little more specific thank you, Ive been trying to see a cause of chugging feeling my bike has developed recently, and noticed a small amount of oil in the air box. By the way if anyone can help me the chugging issue, I would really appreciate it

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post #14 of 15 Old 05-01-2009, 11:56 AM
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Quote:
Originally Posted by mantelhonda View Post
can you please be a little more specific thank you, Ive been trying to see a cause of chugging feeling my bike has developed recently, and noticed a small amount of oil in the air box. By the way if anyone can help me the chugging issue, I would really appreciate it
Don't chug and ride! The loose nut is usually on the seat.

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post #15 of 15 Old 05-01-2009, 06:58 PM
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I had no choice but to buy some E10 gas about 2 weeks ago, bike chigged a few times as I hit the freeway, maybe dirty fuel or something MantelHonda?

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