Getting oil in both intakes

[Chapin1]

There is a hose from each head, then a hose to the oil pan( this hose is like new) then a hose which tees going to both intakes. I’m sure the oil is coming from this box. Any ideas on how to fix it , I’m told if I remove this box and plug the hoses I would have to re map the computer. What if I disconnect the hose that goes to the intake let it pull in free air and plug the air box so no oil can leak.
Any ideas? This is a type 4 with the 1200 cc 8V engine

[Mark]

Hi, If I understand correctly, the hoses from the cylinder heads and to the oil pan are part of the engine breathing system. Any oil vapours leaving the hoses connected to the cylinder heads should collect in a header tank and then drain back to the oil pan. The two hoses connected to the intakes are a separate system for the engine idle control. On my engine, the pipes from the intakes join at the idle stepper motor and then tee off to a single pipe which was connected to the air box on the donor bike. I no longer use the donor bike air box and have fitted a small breather vent filter to the single pipe from the idle stepper motor. If you disconnect the hoses between the intakes and the idle stepper motor I expect the engine won't idle correctly (or at all). Do you have the breather for the header tank and the breather for the idle stepper motor connected together somewhere? If so, it could be that a partially blocked header tank drain pipe is allowing oil vapours to enter the idle stepper motor breather vent?

[peakrock]

I have my T4 engine setup the way you describe Mark (8v Norge) which has worked fine during testing. It's helpful to have it corroborated by you

Thanks Dave

[Mark]

Hi Dave, please don't make the mistake of thinking I know what I am talking about. The information in my earlier post came from a far more reliable source (Alan at Triking). Regards, Mark.