HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Markgyver05

Crankcase Oil ?

4 posts in this topic

I recently acquired a 98 YZ400F from a coworker that was moving.

Anyway I took everything down to adjust the valves.

Removed the plugs on they flywheel cover to find TDC what oil do I use to replenish the oil that came out when I removed the plug?

And do I just top it off to the top plug?

 

 

Share this post


Link to post
Share on other sites

Engine oil is carried in the frame.  If you had run the bike for as little as 30 seconds prior to working on it, even if you also let it sit an hour afterward, you would have lost no oil.  Start the engine, let it run for 30-60 seconds and shut it off.  Then fill the oil at the dip stick in front of the gas tank until the level is correct.

 

http://www.thumpertalk.com/topic/784499-oil-change-procedure-98-02-model-400s-426s/

Share this post


Link to post
Share on other sites

I have started it let it idle for a few seconds then shut it off. I then checked and saw no oil so I did not want to run it any longer.

I will let it run a bit longer and see if I have oil. Also The dip stick is showing it topped off.

Share this post


Link to post
Share on other sites

Saw no oil where?  In the crankcase?  You shouldn't.  Once run up, the oil level in the crankcase and transmission should be below the level of the shifter.  If you wipe the stick and dip it without threading it, and it shows the correct oil level, that's it.  It's a Dry Sump oil system.    Read: http://www.thumpertalk.com/topic/469951-oil-change-confusion-and-four-stroke-top-end-noise/#entry4319538

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0