Does any one know where the crank case ventalation hose is? some one told me about a trick where instead of letting air out of the crank case you force air in and presurize it. has anyone heard about this before or not. and if so can you tell me where the hose is. I Have a 01 f4i

 

sounds like a bad idea, ive heard of creating a vaccum in the cases but pressurizing would just cause all the seals and gaskets to blow oil.

 

Yeah, you don't want to do that. The system is designed to allow the crankcase to move air when the pistons go up and down. The best thing you can do is create a breather so that oil never ends up in the airbox, where it is vented from the factory. Do a search for crankcase breather and you'll see what I mean.

 

Leave the emissions alone unless you are racing (and know what the hell you are doing).

If you correctly remove the emissions equipment you will only see a tiny power gain (not even noticeable) and if you screw it up your bike can end up with serious motor issues. We don't have intake flappers or exhaust butterflies on the F4i so there is nothing that will easily increase power.

 

You have Blow by that gos past the piston rings it has to get out of the crankcase. most times it drawn back in the intake to reburn it.