kleen air on my 636-good idea!
Re: kleen air on my 636-good idea!
hey so i did the mod to my 03 636 is it supose to smoke when u bring it up the bike run really good but it smokes when im doing a wheelie dose it do it beacuse that oil is burning up in the exhaust ????????????
Re: kleen air on my 636-good idea!

i fill mine just below the top of the site glass
Re: kleen air on my 636-good idea!
All i see is a buch of people connecting there case vents together in a constant loop. You got the vents of the top of the valve cover and the vent off the lower crank case/trans case... Explain to me WHERE the crank case pressure is going? cause in stock form the hoses were connected to the air box thus creating a negative pressure and the positive crankcase pressure was going in to the air box thus getting rid of the pressure and gasses. I understand this mod to eliminate the stuff going in to the motor and i understand 636 can suck the oil in to the air box
What i am getting at SHOW me another exit point on the motor for the crankcase pressure to get expelled off to.. cause it sure looks me you all are sealing up your motor ..which only place for the crankcase pressure to go is either, passed the rings when the piston is at Bottom dead center.. since the cylinder walls are tapered at the bottom of the cylinder it would allow the gases to pass by the piston..
This is just my engineering background kicking in.. I just wanna know where the other exit point is for the crank case pressure OTHER then past the piston when its reached its BDC stroke. Is there another outlet some other place? Someone show me. Cause if not i am not going to seal up the vents on my motor. Which can lead to premature wear , smoking and all other kinds of not fun stuff
Can someone answer these questions?
What i am getting at SHOW me another exit point on the motor for the crankcase pressure to get expelled off to.. cause it sure looks me you all are sealing up your motor ..which only place for the crankcase pressure to go is either, passed the rings when the piston is at Bottom dead center.. since the cylinder walls are tapered at the bottom of the cylinder it would allow the gases to pass by the piston..
This is just my engineering background kicking in.. I just wanna know where the other exit point is for the crank case pressure OTHER then past the piston when its reached its BDC stroke. Is there another outlet some other place? Someone show me. Cause if not i am not going to seal up the vents on my motor. Which can lead to premature wear , smoking and all other kinds of not fun stuff
Can someone answer these questions?
Re: kleen air on my 636-good idea!
All i see is a buch of people connecting there case vents together in a constant loop. You got the vents of the top of the valve cover and the vent off the lower crank case/trans case... Explain to me WHERE the crank case pressure is going? cause in stock form the hoses were connected to the air box thus creating a negative pressure and the positive crankcase pressure was going in to the air box thus getting rid of the pressure and gasses. I understand this mod to eliminate the stuff going in to the motor and i understand 636 can suck the oil in to the air box
What i am getting at SHOW me another exit point on the motor for the crankcase pressure to get expelled off to.. cause it sure looks me you all are sealing up your motor ..which only place for the crankcase pressure to go is either, passed the rings when the piston is at Bottom dead center.. since the cylinder walls are tapered at the bottom of the cylinder it would allow the gases to pass by the piston..
This is just my engineering background kicking in.. I just wanna know where the other exit point is for the crank case pressure OTHER then past the piston when its reached its BDC stroke. Is there another outlet some other place? Someone show me. Cause if not i am not going to seal up the vents on my motor. Which can lead to premature wear , smoking and all other kinds of not fun stuff
Can someone answer these questions?
What i am getting at SHOW me another exit point on the motor for the crankcase pressure to get expelled off to.. cause it sure looks me you all are sealing up your motor ..which only place for the crankcase pressure to go is either, passed the rings when the piston is at Bottom dead center.. since the cylinder walls are tapered at the bottom of the cylinder it would allow the gases to pass by the piston..
This is just my engineering background kicking in.. I just wanna know where the other exit point is for the crank case pressure OTHER then past the piston when its reached its BDC stroke. Is there another outlet some other place? Someone show me. Cause if not i am not going to seal up the vents on my motor. Which can lead to premature wear , smoking and all other kinds of not fun stuff
Can someone answer these questions?
Re: kleen air on my 636-good idea!
OMR .. I read the thread.. Show me in this pic where the vent or some other place for the crankcase pressure to go?!
Last edited by hondaruss; Mar 2, 2010 at 06:26 PM. Reason: .
Re: kleen air on my 636-good idea!
the two square boxes on top of the valve cover have reed valves in them and the reed valves act like one way doors that only allow a vacuum , the vacuum is created by the exhaust via a port that goes from the front of the exhaust port to the bottom of the reed valve ...
this mod creates a vacuum in the crankcase not pressure ..if you do the mod correctly and place your hand over your filler hole with the bike running you will feel suction and when you rev it you will feel more suction ..
all this has been discused in this thread over and over again but no one reads the thread
Re: kleen air on my 636-good idea!
you didnt read the thread because there was a two page argument on exactly what you are talking about and wheeliest had a head off the motor and blew air right to the exhaust port but since you are not gonna read it just like 50 other people i will explain it agian so no one reads your post and misunderstands this mod ....
the two square boxes on top of the valve cover have reed valves in them and the reed valves act like one way doors that only allow a vacuum , the vacuum is created by the exhaust via a port that goes from the front of the exhaust port to the bottom of the reed valve ...
this mod creates a vacuum in the crankcase not pressure ..if you do the mod correctly and place your hand over your filler hole with the bike running you will feel suction and when you rev it you will feel more suction ..
all this has been discused in this thread over and over again but no one reads the thread
the two square boxes on top of the valve cover have reed valves in them and the reed valves act like one way doors that only allow a vacuum , the vacuum is created by the exhaust via a port that goes from the front of the exhaust port to the bottom of the reed valve ...
this mod creates a vacuum in the crankcase not pressure ..if you do the mod correctly and place your hand over your filler hole with the bike running you will feel suction and when you rev it you will feel more suction ..
all this has been discused in this thread over and over again but no one reads the thread
Thats all i was asking. Thank you sir. btw i musta missed the reed valves..makes more sense now.. Re: kleen air on my 636-good idea!
yes there are two sensors one reads manifold pressure and the other reads atmospheric pressure , the one needs to be open and the other will have a vacuum line going to it from the factory..
Re: kleen air on my 636-good idea!
ok the problem is that the fi light come on and goes off after a while....when i try to do no handers it bogs out but besides that runs great...any ideas?
the only vacuum line you need to plug is the one that comes off the back of the pair valve , no other lines get plugged , i think the hose you are talking about is the overflow for your tank and you dont block that
yes there are two sensors one reads manifold pressure and the other reads atmospheric pressure , the one needs to be open and the other will have a vacuum line going to it from the factory..
yes there are two sensors one reads manifold pressure and the other reads atmospheric pressure , the one needs to be open and the other will have a vacuum line going to it from the factory..








