Quantcast
Jump to content

  • Do you own an ATV? Join our Forum!

    As a member, you can post in our forums, upload your photos and videos, use and contribute to our downloads, create your own member page, add your ATV events, and even start your own ATV club to host your own club forum and gallery.  Registration is fast and you can even login with social network accounts to sync your profiles and content.

VFWVET

1986 Yamaha Moto 4 Air Filter Box

Recommended Posts

Just purchased one of these and I have a few questions:  Went to change the air filter and it fell apart, but there were two pieces of the foam wrapping the wire cage - Normal?  In addition there was about an inch of oil in the bottom of the air filter box - again - Normal?  The backing piece of plastic for the wire cage was laying in the bottom of the filter box and the bolt was also in the oil.   I am also looking for a recommendation on what to do with the machine as far as maintenance, it runs well, shifts fine, needs a new battery, but what else should I be checking?  The previous owner had it for over 25 years and does not have any records or memory of the last oil change or any other maintenance other than needing to replace the battery a couple of years ago and placing a car battery on the front rack and running wires to the starter.   Learning curve is sharp, but looking forward to the experience.   Thanks for your input.  

Share this post


Link to post
Share on other sites


Congrats on the purchase. sometimes you can get away with washing the foam wrap bue I would probably just get one off of amazon.

1985-1989 YAMAHA Moto 4-200 UNI AIR FILTER YAMAHA ATV, Manufacturer: UNI FILTER

Here's a manual for a 200.

Change the air filter and clean the air box and you should be good. Change the oil and filter also.

Share this post


Link to post
Share on other sites

Thanks for the information, but it appears I am not allowed to download files.   I tried changing the oil today, and what appears to be the drain plug in the dark pictures of the manual does not have a nut pattern, it is completely round.   The plug appears to be located down and forward of the oil filter cap - am I trying to loosen something I am not supposed to remove?  I will attempt to upload a photo showing the area I am talking about.  

Moto4oilredarrow.jpg

Edited by VFWVET

Share this post


Link to post
Share on other sites

Think I found the answer.  Wrong side of the ATV for the oil drain.  Such is life.  Keep on learning.

 

Share this post


Link to post
Share on other sites

NOT the wrong side, youtube video was not of any help AT ALL,  Back to learning.

 

Share this post


Link to post
Share on other sites


Learning accomplished.  Oil change completed.  Sorry for the comment YouTube.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Tagged Content

    • By erk mann
      What is the trick to remove the carburetor  on a 1987 moto4 350? 

    • By Steve Bethany Poston
      I just got an old YFM200DX Moto 4 and upon checking the oil in the rear differential I took out I assume the fill plug and it fished out old nasty oil. I plan on flushing the oil and replacing but was wanting to make sure if you drain bottom plug and just fill up to the check plug. Only thing I can think of someone filled it up by the breather on top? Plan on unhooking the hose and blowing it out tomorrow. I also do not have a service manual yet. Also right now the diff vent hose just goes up under the tank to nothing. Does it plug into back hole in the air box? Thanks 
    • By amharrison24
      i have a 91 moto 4 100. has electric start only. for as long as i could remember we have always pushed start it. after riding for while you shut it off. you are able to hit the start button and it will start right up. anyone know where i should start with fixing this issue? im fixing it up for my niece. thank you in advance.
  • Similar Topics

    • By erkme73
      I recently purchased the subject UTV for my kids.  It's my first Polaris (other wheeler is a Teryx4) - and my first-ever single-cylinder vehicle (even my mower has more)...
      Valve lash adjustment values... The operating manual recommends verifying at specific intervals, but does not provide the clearances or procedure.  Any idea where I can obtain those? Tach on the display shows about 1500RPM when at idle, and about 6000 when WOT at max speed (30MPH).   Does that seem correct? The engine does not SOUND like it's going that fast, but that may just be my unfamiliarity with single-cylinder engines.  The idle feels mildly rough - and the tach shows a fluctuation of about 50 rpm.  It's not wild, but it is noticeable.  Again, without any point of reference, I do not know if that's just the nature of the beast, or if I should be concerned. The front wheels spin freely in the forward direction (mild brake noise can be heard), but when rotating tires backwards, the brake pads grab the rotor with significant force - making it nearly impossible to turn the rotor by hand.   Considering the cost of new rotors and calipers, I'm hoping there is a know 'fix' for this issue. Any help would be appreciated!  My kids can't wait for me to give it the "all clear".   Still waiting on helmets to arrive from Amazon, so I have a couple of days to get all the maintenance and repairs completed.
    • By Glen Hoerschgen
      Hey guys i have a 2002 yamaha wolverine that needs a new wire harness.  Does anyone have a clue where i can get one new or used. ive looked all over and cant find much on a 2002 model.  Any help will be greatly appreciated . thanks so much
       
    • By M C
      Hello all!
      A friend of mine has this particular 4 wheeler. It sat in the garage for about a year, so I redid the carb, cleaned the tank and installed a new petcock. So far, it cranks right away whether its button started or pull started. So I have a couple of questions concerning the carb and air filter.
      1. Is this a cvk32 250 or 350 carb? As the air fuel ratio adjustment is different according to a cvk document I read. What's your adjustment setting? 2 whole turns and a 1/8 or 2 whole turns and a 1/2? Comparing the old setting on the carb to the new setting (and where the needle sits now), makes me think it was way off before. 
      2. The Air filter cover, gasket, air filter and plate element are all missing. So I was thinking of removing the hose that goes to the air box and put one of those K&N style looking filters and be done with it. So my question is.. will I have to readjust Air Fuel screw or just adjust Idle?
      It's just going to be driven around the neighborhood.
      Thanks in advance for any info or help. Y'all stay safe out there!
    • By George Henry
      Th New Normal?
      New Normal Pandemic Police State.mp4
    • By Ssg
      Hello! This is my first bike with a cvt it's a 19 Outlander 850 xmr. I use the 30" cryptid tires that come with the bike during hunting season since I hunt in a louisiana swamp and I have some 27" interco reptiles during the summer trail rides. So this past hunting season I got stuck and squealed the belt do i looking at cluch kits /adjustments to help with the low end but I dont want to mess with my summer riding so I'm looking for advice 
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...