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MotocrossManiac

2008 YZ450f Oil leak

14 posts in this topic

I don't know if someone already posted a thread about this, but after I do a few motos on the track and let my bike sit I noticed that there was oil dripping out of the black hose by the crankcase cover. It's not a constant drip like a leaky faucet, but like a slow drip lol. Anyways, is this normal?

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check your oil level u may have overfilled it

Yeah I checked it, and it's in between the two lines on the dip stick. After running it for a little bit, I completely drained the oil, and replaced the filter added new oil, and still having this problem.

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to be honest i get this out of my crankcase breather tube as well, especially after running the engine at high rpms, there is alot of pressure in that little crankcase and u get some oil mist caught in the air escaping the engine

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I completely drained the oil, and replaced the filter added new oil, and still having this problem.
Completely drained from both drain plugs, with the dipstick removed? How much oil did you refill with?

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I had the same problem with my 08 too. I filled to spec. from the manual and noticed drops of oil from the breather hose as well. The funny thing is that this only seems to happen with certain brands of oil. I got a great deal on Castrol and it seemed to drip alot more than the Maxima I have always ran. I just poured the rest of the Castrol down the storm drain :worthy: and haven't seen a drop of oil since.

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I had the same problem with my 08 too. I filled to spec. from the manual and noticed drops of oil from the breather hose as well. The funny thing is that this only seems to happen with certain brands of oil. I got a great deal on Castrol and it seemed to drip alot more than the Maxima I have always ran. I just poured the rest of the Castrol down the storm drain :worthy: and haven't seen a drop of oil since.

The perks of living in ID.:banana:

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I had the same problem with my 08 too. I filled to spec. from the manual and noticed drops of oil from the breather hose as well. The funny thing is that this only seems to happen with certain brands of oil. I got a great deal on Castrol and it seemed to drip alot more than the Maxima I have always ran. I just poured the rest of the Castrol down the storm drain :worthy: and haven't seen a drop of oil since.

Hmmm, thanks. I may just have to try different brands of oil and see if that resolves my problem. :banana:

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Hmmm, thanks. I may just have to try different brands of oil and see if that resolves my problem. :worthy:

Amsoil works good.:banana:

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I just poured the rest of the Castrol down the storm drain :worthy: and haven't seen a drop of oil since.

Idaho will look just like East Germany before long.

That's disgusting.

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I just recently bought a used '06 450 the owner complained was "leaking" oil. I coudn't find anything wrong with it except the right side cases were caked with oily crud...Upon undertaking to change the oil it appeared the left side drain plug had never been removed - the bolt looked mint.

Got a sneakin suspicion the oil "leak" was the result of the hapless owner overfilling with oil as he dutifully "maintained" his bike.

I won't comment on the dumping of oil in the storm drain comment as it's already been adequately characterized.

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Idaho will look just like East Germany before long.

That's disgusting.

C'mon, it only affects those who live down river from me!

In all seriousness I dutifully took the drained oil to an oil recycling facility and paid my disposal fee, always do.

Looks like GR513 may be moonlighting as an undercover Sierra Club agent?:worthy:

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Looks like GR513 may be moonlighting as an undercover Sierra Club agent?:worthy:

You don't have to be a greenie to know better than to crap in the water supply. :banana:

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