Author Topic: Crank case breather  (Read 358 times)


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Crank case breather
« on: December 13, 2023, 09:27:38 AM »
If you use a pod filter on a single cylinder, where do you route the crank case breather pipe?


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Re: Crank case breather
« Reply #1 on: December 13, 2023, 10:34:07 AM »
Aye tevie,

High up under the seat, with a "U" bend so that water can't flow down it, or trail it out beyond the back wheel and zip tie to frame. Final alternative is to form a "U" bend and insert into a vented container (quirky comments/containers de rigour on race bikes!).

Have a look at old race bikes, if my description is a bit off.

I would suggest that you don't put a K&N filter in the end as they tend to increase crankcase pressure, inspite of what K&N say and you are liable to produce leaks from joints and mating faces that never weeped before.

Good health, Bill


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Re: Crank case breather
« Reply #2 on: December 13, 2023, 11:22:49 PM »
onto the final drive chain.