On a 400ex the engine and transmission share the same oil. So when you change the oil in the engine you are changing the transmission oil as well. That is why you need an ATV or motorcycle oil designed for wet clutches.
You should use only Honda genuine transmission fluid. You can get a gallon of it at your local Honda dealer and change it yourself.
Use only genuine Honda ATF DW1 automatic transmission fluid and nothing else.
Auto Transmission Fluid
Yrs
Any kind of DOT 3 brake fluid.
15000 miles
you pull the drain plug on the side of the transmission
Change all the transmission fluid and replace the filter.
Honda transmission fluid is specifically formulated by Honda for the transmission they designed and built. Using any other fluid will cause rough shifts. That is why you should only use genuine Honda fluid.
On a 1998 Honda Civic there is a transmission drain bolt located on the bottom of the housing. Loosen the bolt and drain all of the old fluid. Using Honda ATF fluid top off the transmission.
The Honda Rincon uses engine oil as transmission fluid so when you change your engine oil or check your engine oil level you are also changing or checking the transmission fluid at the same time.
where do you add the transmission fluid in a 1996 Honda accord 4 cylinderAnswerwhere do you add the transmission fluid in a 1996 Honda accord 4 cylinder