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NMills
05-23-2011, 07:00 PM
Ok... lately... i check my oil... and it's quite bubbly... little air bubbles... tons of em... should i be worried? i added Seafoam... but i think it was doin this before.. why whould the oil be doing this???
01boneless
05-24-2011, 07:57 AM
lol nothin to worry about just where it gets hot and boils like:)
NMills
05-24-2011, 08:33 AM
It never did this before... and i don't see it boiling after only lettting it run for a few minutes.... just long enough to check the oil level...
smelly$cat
05-24-2011, 11:04 AM
my 440 does this. oil is not hot or boiling.
drew416ex
05-24-2011, 11:58 AM
What oil are you running?
smelly$cat
05-24-2011, 12:08 PM
motul 10-40 I think. Semi synthetic
drew416ex
05-24-2011, 05:54 PM
Is that a atv oil? I ask because motorcycle/atv oil has antifoaming additives to help keep this from happening. The oil running through the transmission is what causes it to foam. The more bubbles there are the less protection for your engine because when those bubbles collaps between two parts there is metal to metal contact.
smelly$cat
05-24-2011, 06:23 PM
Indeed, it is.

Rocky Mountain ATV sells it.

Guy I bought my quad from ran it since the 440 build. I've been running it for 5+ years. Motor's still tight with no smoking.

http://www.rockymountainatvmc.com/productDetail.do?navType=type&webTypeId=100&navTitle=Chemicals&webCatId=23&keyword=motul&prodFamilyId=3371
78ta
05-26-2011, 08:25 PM
couple common things that make oil foam in 400ex is oil over full and oil filter installed backwards!