apex4
Extreme
ok..guys quick question....oil resisdue in air box....what causes this....also..oil is real dirty after changing...and it idles bad..loops. 
Usually oil in the air box is from a faulty pcv system. It can sometimes be caused by the wrong oil viscosity, and occasionally is from excessive blow-by from worn rings.
yamahahaapex
TY 4 Stroke Master
or you tip it on its side, right side for too long, or oil is overfilled
apex4
Extreme
welll ur right........its been on its side......many times .lov to boondook............and yes i can with this heavy pig..lol.... as for the oil in air box..i have had sled for 4 yrs....without cleanin it..so its ok..
as for the real reason i say its the iav..system..ill clean after my run tmr....another 150mls with my ape.........
as for the real reason i say its the iav..system..ill clean after my run tmr....another 150mls with my ape.........
RTX
TY 4 Stroke God
- Joined
- Mar 31, 2005
- Messages
- 1,796
- Location
- massachusetts / maine
- Country
- USA
- Snowmobile
- 2014 viper rtx
2006 apex rtx
Mine always has a small amount of residual oil in the air box.
It has been like this since day 1.
I pull the air box every year to do an oil change and always wipe out a small amount of residual oil.
In my opinion it is normal to find this in small amounts.
I do not know what causes it though
It has been like this since day 1.
I pull the air box every year to do an oil change and always wipe out a small amount of residual oil.
In my opinion it is normal to find this in small amounts.
I do not know what causes it though
theCATman
TY 4 Stroke Master
What causes this you ask.... the crankcase is vented to the airbox just as the crankcase is vented to the intake on you're truck or car. A means of emissions.
Combine this with an engine that spins in the 7-10,000 RPM range on average & you have excess crankcase pressure that has to go somewhere.
Excess oil that winds up running out of the airbox and out the bellypan is usually from what has been said being tipped, overfilled, or plugged/kinked hose.
Combine this with an engine that spins in the 7-10,000 RPM range on average & you have excess crankcase pressure that has to go somewhere.
Excess oil that winds up running out of the airbox and out the bellypan is usually from what has been said being tipped, overfilled, or plugged/kinked hose.
