what type of oil should i be using for my crankcase? I have a 2001 400ex. There is no indicator or anything. Should i fill it half way 3/4 of the way? Can anyone help me on this? thanks

 

Honda HP4 is a real good bet for the 400ex. When filling the oil tank I fill mine to the upper mark without the stick threaded in. I also look to see oil on the stick, run the engine , shut it off, then check it.

 

well i dont mean the oil in the oil tank. I use vasnine 10w-30 ATV oil in mine, so do i use that in the crankcase? Thats what i use in my engine.

 

need some help on this.. just use regular atv engine oil? same oil i use in the engine use in the crankcase?

 

It is a dry sump engine! The oil from the external tank, flows into the "crankcase".........it is all the same oil (engine and transmission). You check your oil level on the dipstick on the tank.

By all means get yourself an owners manual, it has pictures of where everything is! When draining, you drain both the tank and the cranckase (bolt on the bottom of the tank, and another bolt on the side of the engine), and replace the oil filter. You fill the tank, start the engine, then check it again and top it up. Check the level often!

 

k np [img]i/expressions/face-icon-small-smile.gif[/img] thanks. I need to get a owners manual for it your right. Thanks for the help.

 

See my comments here, on oils. http://forums.atvconnection.com/mess...y&keyword1=oil

I think 10W30 might be light for very hot summer weather.

 

hmm ok. Im pretty sure its 10w-30.. i will check tomorrow on the bottle and see what it is. Its 2:00 AM here and i cant really think back[img]i/expressions/face-icon-small-tongue.gif[/img]