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
UPSWR450

Oil in the air box

10 posts in this topic

I have a 07 WR450 and when i was done riding today i noticed that there was a good amount of oil in the air box? It seems to be coming out of the breather tube. Any help on what the problem may be would be greatly appreciated.

Share this post


Link to post
Share on other sites

I think I would check the oil level first, if it's higher the normal than sometimes it gets in there from the breather tube..

Share this post


Link to post
Share on other sites

When you changed the oil did you loosen the plastic screw on the oil resivoir? it's behind and above the oil filler hole in the front of the engine,if you didn't then not all the oil comes out. there's a vacuum that you have to break by loosening it. and there is two drain bolts you have to remove. you might already now these things but just in case you didn't.

Share this post


Link to post
Share on other sites

I just bought a 08 WR450F and road around the block and had the same issue, hopefully it has to much oil!! the dipstick/cap doesnt have a way to measure the oil?? is there a way i can check this or do i just need to drain the oil by lossening that vent thing and refill the oil? Whats the CC's on this?

thanks

Share this post


Link to post
Share on other sites

There should be a line on the dip stick. After changing the oil you want to warm up the engine (do not rev the motor nor ride the bike yet). Turn off the engine, wait 30-60 seconds and then slowly remove the dip stick. If oil over flows there is too much oil in the engine. If not, clean off the dip stick and stick it back WITHOUT screwing (threading) it on. Pull it back out and check oil level. It should be right up to the line without going over.

Share this post


Link to post
Share on other sites
There should be a line on the dip stick. After changing the oil you want to warm up the engine (do not rev the motor nor ride the bike yet). Turn off the engine, wait 30-60 seconds and then slowly remove the dip stick. If oil over flows there is too much oil in the engine. If not, clean off the dip stick and stick it back WITHOUT screwing (threading) it on. Pull it back out and check oil level. It should be right up to the line without going over.

Thants Wierd the cap on the left cover is just that a cap no dipstick=( Sounds like i need to order the right cap that has a dipstick?

thanks

Share this post


Link to post
Share on other sites
Thants Wierd the cap on the left cover is just that a cap no dipstick=( Sounds like i need to order the right cap that has a dipstick?

Did you get a manuel with the bike...if not you really need to get one. Your looking at the oil fill cap. The dipstick cap is located on the left side just in front of the cylinder underneith the radiator hose. Its black, 5/8" round and about 1 1/2 tall.

another thing is its spewing oil but i cant even see the oil in there nor feel it with my pinky?

This is because this is the oil fill cap and the oil is down in the bottom of the engine and in the transmission case. The motor oil lubercates both the engine and transmission/clutch. This is why it is important to change oil frequently. It gets very dirt from clutch wear.

Share this post


Link to post
Share on other sites

Thank you so much that tonally makes sense. i thought that was the vent someone was talking about but that must be a little higher. My 426 fills in the frame so its a little diff.

Thank you very much!

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