I just got a used 500 HO and wanted to change the oil, I was following the book but did not read as close as I should have. When it said to remove the drain plug from the case I removed the bolt below the filter on the left side of the machine, a bit of oil did come out but not as much as the book siad would so I was thinking something was wrong. I did re-read and found out the drain is on the right side. I put it all back together and primed the pump I did hear a hiss. My question is on the bolt that I took off below the filter it has a hole in the middle and one on each side, do you have to line this up just right or what? I tighted it down.
Thanks for the help.

 

I think folks would be able to help if you provided more info. Year is inportant. I only have experience with the 700 EFI so I can't help/ Sorry.

 

Sounds like an oil line bolt. Just make sure it's not leaking

 

it is a 2004 500 HO, the bolt is were the hose goes that comes off the oil tank

 

went to the dealers and they said the holes did not need to line up