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.


my bro's 96 yamaha kodiak problems

Recommended Posts

Hello all, I sure hope ya'll can help me out. I'm going to the UP of Michigan in the middle of next month and my bro up there is trying to get his 96 Yamaha kodiak 400 running right. my bro is a pretty good mechanic but he is kind of new to 4-stroke motorcycle engines.

He is going to contact original owner to find out what has been done to it if anything

Here's the low-down as I understand it.

The ATV was originally purchased by bro's dads friend, older guy (60's) for hunting, two years ago bro's dad bought it cheap, it was running rough so it was stored untill recently when bro got it from his dad.

ATV has 1500 adult miles on it, in good shape

After it sits all night with the fuel petcock off it will start right up but then it starts running poorly and if shut off is hard to start again.

He has noticed some gas accumulation in the airbox.

Bogs down or will not run when reved or attempting to move.

Sparkplug is very black, good plug, good gap.

Some backfiring

I ordered and sent him (poor guy doesnt have internet:laugh:) a rebuild kit and a manual. I am thinking the choke o-rings are messed up or the float is bad and its flooding badly, thus the gas in the airbox. DANGER!

Does anyone know what the correct weight for one of these floats is?

All Ideas/comments welcome!


Share this post

Link to post
Share on other sites

haha, ok, dude just called and said the float is ok. and the o-ring in the choke looks good.

SO I guess we will install carb kit and see what happens...then go from there.

Share this post

Link to post
Share on other sites

Black plug =too rich......as far as gas in the airbox, check float needle and seat should look like this > not indented at tip, and also vacuum line and fuel filter for blockages, tank screen too...hopefully your rebuild kit has the needle and seat as I have seen some that do not....make a note of the slot the original jet needle clip is on so you know where to put the new one...Good Luck!!:wink:

Share this post

Link to post
Share on other sites


The vac tube check valve was clogged up.....thats what he said....I pass along to you his appreciation..and mine. I

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.

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 Topics

    • By Hellraiser69
      Just got a new to me, 99 Kodiak w/ plow and an extra set of tires for dirt cheap. I'm curious where you guys purchase your parts for your older ATV's? Google is great to find parts, but I'm hoping you guys have some stores, online, that you prefer on a recommendation basis. I've already purchased my tune-up items, but the brakes need some work and I'll likely end up having to replace the steering stem bearing, front CV axles and a few other things down the road.
    • By Mike Hooper
      Hi everyone! I'm from New Zealand, and doing up a Suzuki Lt50 for the kids. This is the first bike I've ever worked on, and it's currently not running. Hoping that both Google and this forum will get me through! Haha

    • By Asen_77
      Hi All,
      My name is Asen and I am from Eastern Europe, Bulgaria. Riding a Yamaha Raptor 700R and this is my first Quad wanted for a vey long time :)

    • By dgk_mike
      It will go into neutral, 1st, 2nd, and reverse but nothing after 2nd gear. The shifter moves freely going up completely nothing but when you shift down it works. I’m not sure if it’s tranny issue worth messing with or if I should just buy a new one.  Overall besides that the thing runs like new.

    • By StolenATV
      Taken from my car port around 0330 and was taken by at least 2 people found footprints pushing the quad all the way to the road (80 yards)
      The post 2012 Yamaha Grizzly 700 EFI 4×4 Stolen appeared first on STOLEN 911.
      View the full article
  • Similar Tagged Content

    • Guest Fox300exchic
      By Guest Fox300exchic
      The Hop-Up: You may be saying to yourself, “that’s a chick bike,” and you’re right. But honestly, it’s so much more than that. It’s one badass bike. http://www.quadmagazine.com/quad/features/article/0,24942,1587044,00.html
    • By dyyjrr9
      I just got a 1991 Yamaha Moto 4 for my son and I am looking for a service repair manual. I know that the timing chain needs replaced.
    • By alexcross324
      Hi all, I try to find this manual in the threads but you have a lot of stock here
      Cannot find this particular manual.
      I found it for YFM200 but not sure if they are the same.
      Thanks if you could help me with that.
      Im new here so if I did something wrong, please tell me.
    • By ej200421
      i was wondering if i could get some help. i been trying to locate where the fuel and air adjustment screws are located on my 95 kodiak 400. i think i found the fuel screw.. i know where the throttle adjuster is but i cant find the air screw. or is there an air adjustment on these carbs?
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...