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Old 06-03-2020, 02:38 AM
Doc Brown Doc Brown is offline
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Join Date: Dec 2017
Location: Austria, Europe
Posts: 586
Default Crank Case Breather Hose Question

On my 2019 300 EC I found two hoses near the cylinder. One on each side coming from the PV housings. They both were connected two the air box.

According to the race prep recommendations I removed them and plugged the hole in the intake rubber.

I always find a drop of oil coming from the left hose. Sometimes it is a bit thinner and obviously mixed with water sometimes it is pure oil.

I also had this on both other 300's I had but not as much as on my actual bike.

Bike is new (9 hrs) and runs very well otherwise. Compression is fine too.

Reason to worry?

PS I cross posted my question on TT Forums as well...
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