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Let's play "Figure out why my bike is leaking oil"

  • Thread starter Thread starter Mike
  • Start date Start date
Alright - got the airbox out, and there's definitely oil sprayed all over behind where the breather tube comes in.

Also found out that the PO decided not to bother with an air filter :\
 
Hmmm here's a thought... did you over fill the oil level? Given the oil separators look good, I'm surprised it's blowing so much through there.

Alternatively, are you sure it's all oil? Is there fuel mixed in with the oil? If your fuel tap is bad it could be leaking fuel into your oil too which may explain an excess of "oil"...

As for the air filter, well... time for a newbie one there :)

Oh, you do know when checking the oil level you don't screw the dipstick in, you just sit it on top of the threads right?
 
pete said:
Hmmm here's a thought... did you over fill the oil level? Given the oil separators look good, I'm surprised it's blowing so much through there.

Alternatively, are you sure it's all oil? Is there fuel mixed in with the oil? If your fuel tap is bad it could be leaking fuel into your oil too which may explain an excess of "oil"...

As for the air filter, well... time for a newbie one there :)

Oh, you do know when checking the oil level you don't screw the dipstick in, you just sit it on top of the threads right?
Click to expand...

I definitely didn't know that about checking the oil. I guess I'll just put it all back together (once I get a filter in), and check the oil and see how it does.

Thanks for all the help so far!
 
hope the video helped.
I'm starting to wonder if my bike is getting gas in the oil too since the oil level has never gone down but I know it's oil leaking somewhere... (100 places maybe)
 
If you even mildly suspect your fuel tap is dodgy, check the oil, you don't want fuel diluted oil lubricating your engine...
 
Essentially you need to make sure it's not leaking fuel when it should be shut off.

They're vacuum operated with no off position, so whilever the engine's not running there should be no fuel flow. Easiest way I can think would be to take the fuel line off your carbs and leave it sitting in a little (fuel safe) container for a while, maybe over night.

What makes them suspect typically is unexpectedly high oil levels, oil smelling of fuel, and seeming to go through more fuel than normal.

As to checking the oil level, have you actually done that? Just to be sure it's not way over fulll?
 
pete said:
Essentially you need to make sure it's not leaking fuel when it should be shut off.

They're vacuum operated with no off position, so whilever the engine's not running there should be no fuel flow. Easiest way I can think would be to take the fuel line off your carbs and leave it sitting in a little (fuel safe) container for a while, maybe over night.

What makes them suspect typically is unexpectedly high oil levels, oil smelling of fuel, and seeming to go through more fuel than normal.

As to checking the oil level, have you actually done that? Just to be sure it's not way over fulll?
Click to expand...

Whew. My tank has been sitting on the garage floor for a couple days now with no leaking, so I assume it's fine.

I called the guy at Cycle Recycle and he also said that it's most likely just got too much oil, so I'm going to change the oil tonight (it needs it anyways) and make sure it's got the right amount.

Chances are pretty good that it's got too much oil. Last I checked it, it seemed a bit low, so I added some. Might have just not got a good reading.
 
Cool, fingers crossed.

Don't forget when you check it, don't screw the dipstick in, just rest it on top of the threads to get the reading.
 
Took it out for a quick run last night, only about 15 minutes, but I didn't see any oil underneath this morning. Woot!!

Now once the air filter gets in on Friday, it should be back to normal
 
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