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- - oil drain pipe from airbox ( https://www.xt660.com/showthread.php?t=8394)

Kev	27-02-09 01:10

I have been watching this thread for a while now, your oil problem is bugging me, as the XTX & R does not suffer this problem & they are basically all the same motor.

Can someone please take some photo's of the oil breather system for me, from the pipe that exits the motor & winds its way to the air box. Thanks.

JMo	27-02-09 01:46

Quote:

Originally Posted by Stridey (Post 84143)

Having given it alot of thought and due to the amount of oil being so little when you drain it into a container(a full drain tube amount) I have been running the bike for the last 2 days (160 miles) WITHOUT the rubber bung in place!

Yes you get a few drips after the engine is switched off but very little oil spillage during riding on the bike or rear tyre- infact less oil spillage than from the Lubeman chain oiler fitted to the rear sprocket area on the other side of the bike!

Is it Yamaha fitting the bung purely as a "green" solution as its not good to drop any oil into the ecostructure. is the air breather system big enough to cope and thats why you get oil in the drain tube?

Anyone got any comments or advice?

thanks
Stridey

I'm no eco-weenie, but I don't think it's a good idea to let the oil drop out on the floor/road/trail - even a small amount can polute a watercourse for example. Also, I'd not want any oil dribbling out in line with my rear tyre, just in case... x

What is the problem with emptying out the tube once in a while? I'd rather have the bung in so I can keep an eye on the ammount - if it is excessive, then I imagine you will need to top up the oil filler eventually, then ride to the dealer and get it sorted under warrenty!

xxx

tenere doug

27-02-09 08:22

Quote:

Originally Posted by Old Git ray (Post 78722)

I did a 2200 mile trip in 6 days in October and have only done 300miles since.
Today I fitted a DNA filter and took the air box apart to take pictures for Kev.
This is what happened....

Attachment 3086

Attachment 3085

There was about 30mm of oil in the air filter box

A lesson learned...

I haven't been on for a while, and I've just noticed this thread. I had the same thing, oil backed right up to the airbox, after a 600 mile thrash to Scarborough and back. It must be the constant high revs, because in normal day-to-day running, I only see a small amount collecting.
Maybe there's another way to vent the crankcases? Couldn't the breather go straight up from the engine, and maybe run back in again, so there was no oil loss? Or how about directing the pipe into a Scottoiler?! ...Waste not, want not! :idea:

JMo	28-02-09 00:25

Quote:

Originally Posted by tenere doug (Post 84167)

Maybe there's another way to vent the crankcases? Couldn't the breather go straight up from the engine, and maybe run back in again, so there was no oil loss? Or how about directing the pipe into a Scottoiler?! ...Waste not, want not! :idea:

In California they do this, the 'gases' from the crank case are caught in a charcoal filter, and the oil recirculated back into the crankcases... all this plumbing is the first thing most owners remove when they buy a new bike... x

On my XR, the crankcase breather goes upwards (and not into the airbox at all now), so any oil tends to run back down the tube...

Nice idea about diverting to a scottoiler tank... now there's a project for someone!

xxx

Old Git Ray

25-04-09 08:45

Quote:

Originally Posted by Stridey (Post 84143)

Hi Thanks for all the replies.

Having given it alot of thought and due to the amount of oil being so little when you drain it into a container(a full drain tube amount) I have been running the bike for the last 2 days (160 miles) WITHOUT the rubber bung in place!

Yes you get a few drips after the engine is switched off but very little oil spillage during riding on the bike or rear tyre- infact less oil spillage than from the Lubeman chain oiler fitted to the rear sprocket area on the other side of the bike!

Is it Yamaha fitting the bung purely as a "green" solution as its not good to drop any oil into the ecostructure. is the air breather system big enough to cope and thats why you get oil in the drain tube?

Anyone got any comments or advice?

thanks
Stridey

Hey Stridey, Just noticed your post.

Due to the design of the air box, air will be sucked in through that tube and straight into the engine without being filtered. Not a good idea when you consider where the tube terminates.

The air box on a Z is a completely different design to the X and R which is why it cannot realy be modded in any way (bar the snorkel as JMo has done).

So Stridey, put your bung back in and live with it :045:

OGR

JMo	25-04-09 09:01

Quote:

Originally Posted by Old Git ray (Post 91303)

This is a good point from Ray...

(Although just to clarify, I haven't modded my own snorkel, only made the suggestion...)

xxx

neil4022

25-04-09 14:59

Oil in Air Box Pipe

:moon:Hi There ,

I have done 840 miles on my new xt660 and had to drain the pipe but two of the guys i ride with theres are the same . Just make sure your oil is topped up and ride it and enjoy it . Three of us on xt660z are going up to the scotish trails next weekend in fort willaim any one eles up for it . If you see us dont forget to beep your horn and give us wave . DAVE , GAZ & PAUL . OH FORGOT TO SAY TWO OTHER GUYS STEVE AND BOB ONE FAZER AND A SUSUKI BANDIT ( SHANE ) REGARDS NEIL4022:mbounce:

Lairyboy

01-05-09 11:04

Oil Drain

Hi Folks,
just read this thread with interest as having now done about 2k miles I noticed that the oil drain pipe is full!! The mileage included some lengthy blasts along A and B roads and plenty of off-road sections in France.

Now I'm not the most gifted of mechanics and although the bike's running fine I assume I should drain the pipe and then re-check the oil??

Apologies for what is bound to be a daft question!:southpark:

deiaccord

01-05-09 11:10

Worth draining the pipe every now and then, oil will collect in the airbox when the tube is full. Left mine a bit too long and filled a jam jar with oil (about 200ml I guess). That was after several thousand miles however.

Oil level does not drop significantly (even with the amount I collected) but worth checking the oil every now and then anyway.

Gas_Up_Lets_Go

01-05-09 11:13

Quote:

Originally Posted by Lairyboy (Post 92122)

Hi Folks,
Now I'm not the most gifted of mechanics and although the bike's running fine I assume I should drain the pipe and then re-check the oil??

Yip, just open the clip with a pair of pliers (move it up the pipe a inch) pull out the bung and the oil will drain out. When your done, stuff the bung in and replace the clip!

You'll be suprised how little oil is contained in the drain pipe (unless it fills right up to, and into the airbox!).

If your oil level was right then the simplest thing to do is to put the same amount of new oil into the bike as what has just come out!

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