Question about Garden
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Posted on Jan 02, 2017
SOURCE: oil leaks from breather box
From your brief description It sounds like you are experiencing Crank Case pressure build up.
I presume your ZZR is of High mileage or possibly previous owners havn't serviced it regularly.
The problem being the compression Piston Rings wear and allow Blow Back gasses into the crank case there by building up pressure, this in turn sends an oil film up the breather tube to your air box resulting in your problem.
You could try an oil & filter change (Synthetic) Top jolly with maybe an additive plus similar for the fuel i.e. Red-Ex or similar, it may help but I doubt a cure.
If you want you could extend the breather pipe away from the box into a drip can or similar, be sure to filter it as you don't want to get contamination down in the cases.
Hope this sorts it for you?
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Posted on Mar 05, 2009
mine does the same thing ive been told its normal just keep an eye on oil level but make sure engine is warm before checking it other wise it wont read properly on dip stick
Posted on Apr 19, 2009
Just a possibility, i found this worked on some cars with similar problem (at least reduced the amount of oil going up the pipe)
Add a (bit at a time) bottle of STP oil treatment, the thick gooey stuff, it should increase the surface tension of the oil, keeping it in one piece, not splitting up and splattering around --> thus being less readily exhaled up the blow-off pipe.
just a thought. this will also increase the compression a little since it thickens the oil, will take up a little wear too coz it likes to cling on to bearings.
Posted on Apr 30, 2009
Most likely your air filter is plugged or dirty, or the crank case vent valve needs to be cleaned.if it still does it check that the oil level is at the full mark, if overfilled it would cause the same problem.
Posted on Jun 22, 2009
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