6

I bought an '87 Ninja 600R (ZX600b) and can't figure out whats missing that goes in or over this hole.

Is it missing a plug, a hose, or something else?

Is it important?

enter image description here

  • ty i couldn;t seem to find it ..... it did not have an air box when i bought the bike as the previous owner put a vance&hines exhaust and the k&n pod filters on it and removed the air box completely....... is it safe to run just open like that? or should I put somesort of hose on it? – Ike Ayers May 10 '16 at 22:56
  • It's odd that there is not more oil everywhere. When I've removed air boxes in the past I've built a mini PCV system to catch the oil. One time, I even used a hose and beer can zip tied into the bike because I was broke. Years and years ago. Back to the point, yes, you should have something to catch the oil. Again, what is odd to me, there isn't oil everywhere. Is your oil level really low on your bike? – DucatiKiller May 10 '16 at 23:47
  • not really low..... a little low but i bought the bike as a non running project for 200 bucks..... couple hours later i got it up and running but found i had a leaking float bowl on 1 of my carbs that i just ordered new gaskets for... i discovered this when i took the tank and carbs off to work on the carbs and it bugged me lol. the bike has been running maybe 20 minutes tops by this point as like i said the carb bowl was leaking and i didn't run it any longer. i did a little investigating after you informed me what it was and looked into oil catch cans and systems – Ike Ayers May 11 '16 at 3:46
  • and not sure if i NEED to run the exhaust port of the catch can back into the intake manifold somehow or if i can just do a filter on the exhaust side as long as i have a catch can on there for the oil. – Ike Ayers May 11 '16 at 3:48
  • 1
    Yup, you should be good. – DucatiKiller May 11 '16 at 4:53
7

There is a hose that connects your air box to this

As stated in comments, this is connection point for a PCV hose. The hose connects to the bottom of your air box that attaches to your carburetors.

This hole allows for crankcase ventilation. Any gasses that should not be released into the atmosphere can be vented here. It should get pulled back into your motor and burnt, which is why it's connected to you air box.

There are additional emissions related components that are related to this ventilation system including a vacuum diaphragm.

Link to parts diagram.

See part number 90259D (Breather)

EDIT

I think the hose is attached to the bottom of the air box you removed to get that photo. The connection point is very clean and the cases aren't covered in fresh oil. Just old stuff. Look on your air box and I think you may discover the hose that attaches to crank vent is attached to the air box and that you aren't missing any parts after all.

  • it did not have an air box when i bought the bike as the previous owner put a vance&hines exhaust and the k&n pod filters on it and removed the air box completely....... is it safe to run just open like that? or should I put somesort of hose on it? – Ike Ayers May 10 '16 at 22:58
1

The Breather fitting is missing according to the diagram, you can buy one on Bike bandit.

Original OEM Part number was 92005-1129

Also it looks like 92005-1017 may be a tube that attaches to it, but not sure, schematics are not that good. You could call BikeBandit on the phone to figure out what is missing.

enter image description here

  • That part number is the actual fitting that we see in the photograph above. It's not the correct part. The correct part is the tube that connects the fitting to the air box. This is just the fitting you tab into the case for the hose to connect to. – DucatiKiller May 9 '16 at 19:37

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.