Quantcast
Jump to content

  • Join Today, It's Simple and FREE!

    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.

b1jackson

New Yamaha owner saying hello!

Recommended Posts

Well I am all about restoring and fixing up old neglected beaters. This will be my first ATV (usually do scooters). Bought an 87 Yamaha Moto4 225 with some transmission issues. Hope to learn from the forum here on how to dissect this little beast and get it performing in tip top shape. Also plan on doing a cosmetic overhaul to it along the way.

Share this post


Link to post
Share on other sites


there are alot of parts for thoes on ebay .. and you might be able to find an atv salvage yard that would have alot of parts also...

Share this post


Link to post
Share on other sites


they also made a 3-wheeler with that same motor and trans on it that will interchange ..just to give you another option for parts..

Share this post


Link to post
Share on other sites




Gee wiz thay really havent changed very much over the years. Great to see the Pictures, hope you supply lots more of them though the restoration. I like it!

Share this post


Link to post
Share on other sites

Hey folks. Been having forum issues of late and can't access any pages or I can just get one page into the site and it locks up.

Anyway, an update of sorts. I was able to start the bike on the weekend. Hadn't heard it running before I bought it. The noise that the PO said was an issue was noticeable as soon as I started up the bike. With in running (in neutral) I could hear a clattery sounding gear like noise. I shut the bike off right away so as not to cause any more possible damage.

I took apart the middle gear (no issues) and also the transmission on the left side of the motor. All was clean, not a metal filing or nothing. No noticeable gear chunks or bits.

I am now thinking that it must be in the clutch (maybe a spring in the primary) so I'll dig into that side of the engine later this weekend. Am I correct in stating that the secondary clutch wouldn't be spinning or engaged at idle?

Fun to see inside these beasts. Much different than my vintage scooters!

Edited by b1jackson

Share this post


Link to post
Share on other sites
Hey folks. Been having forum issues of late and can't access any pages or I can just get one page into the site and it locks up.

Are you still having issues? There is a topic posted in the announcements section of the forum if you are.

Share this post


Link to post
Share on other sites


Hey folks. Been having forum issues of late and can't access any pages or I can just get one page into the site and it locks up.

Anyway, an update of sorts. I was able to start the bike on the weekend. Hadn't heard it running before I bought it. The noise that the PO said was an issue was noticeable as soon as I started up the bike. With in running (in neutral) I could hear a clattery sounding gear like noise. I shut the bike off right away so as not to cause any more possible damage.

I took apart the middle gear (no issues) and also the transmission on the left side of the motor. All was clean, not a metal filing or nothing. No noticeable gear chunks or bits.

I am now thinking that it must be in the clutch (maybe a spring in the primary) so I'll dig into that side of the engine later this weekend. Am I correct in stating that the secondary clutch wouldn't be spinning or engaged at idle?

Fun to see inside these beasts. Much different than my vintage scooters!

OK....another update. Torn apart all the clutch components. No dice there either. Now have the tranny apart, the clutch apart and the engine out on the floor. Looks like I have to go in deep:aargh:

From what I can tell on parts fiches, its the balancer drive gear. When I turn the drive axle, it catches here and there, skips, jamps, etc. So with the tranny all out, the clutch all out, only makes sense that it would be in the worst possible spot to get at. I guess this means splitting the case. Perhaps I'll move this thread.

Share this post


Link to post
Share on other sites

Hello folks. Long overdue update. I didn't want to bother splitting the case so the bike sat torn apart in my shop all summer. Found somebody looking for a parts bike so I sold it.

Feeling like I never got to scratch that quad itch, I found a 1999 kodiak 400 and I'll be bringing it home in a few days. It's ready to ride. Just a few minor things need fixing in the future.

Share this post


Link to post
Share on other sites

yeh. Its my first quad. Wanted something budget friendly and unmolested. Plastics all in good shape. I'll post some pics in the Yamaha thread when I bring it home.

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 Topics

    • By Dimelol
      I have a 2003 Kodiak 450 that i purchased a while back with around 300 hours on it. It has never ran right from the beginning. Initially i thought it was just a carburetor issue because it was all clogged up from sitting for months. It has been cleaned, rebuilt, and taken off probably about 10 times troubleshooting this problem. I have quadruple checked everything including float height ect and it is set correctly, the jets are also brand new, needle and seat have been pressure tested as well. So after all of that I am convinced that the carburetor is not the culprit. I have an issue where the idle is very choppy, almost as if it is misfiring with a rich condition on top of that. I can use a brand new plug and run the machine for just a few minutes and it will be a dry and and coated in black carbon build up. The exhaust also has a strong smell at idle. I had trouble restarting it when hot for a while, but i adjusted the valves and it seemed to solve that issue. They were both way out of tolerance (tight). The weird thing is, outside of idle it seems to run pretty well. 
      So with all that being said I have ruled out the carb/valves/compression and moved on to the ignition and this is where i have a few questions about factory specifications. I guess the main question I have is, how strict are these tolerances? And could them being off by this amount cause the issue I am having? Do all three of these parts really need to be replaced? I would like to know before I spend the money on these new parts, and it not fix my problem. Below I will list what the specs were in the service manual along with the reading i got.  This is my first experience testing ignition components. I just found it odd that all 3 are out of spec according to the service manual.
      Spark plug cap resistance: 10 kΩ at 20 °C (68 °F)
      My Reading: 8.90 kΩ
      Primary coil resistance: 0.18 ~ 0.28 Ω at 20 °C (68 °F)
      My Reading: Fluctuated between 0.4 - 0.5 Ω
      Secondary coil resistance: 6.32 ~ 9.48 kΩ at 20 °C (68 °F)
      Reading was within the specified range.
      Pickup coil resistance: 459 ~ 561 Ω at 20 °C (68 °F)
      Reading was within specified range.
      Rotor rotation direction sensing coil resistance: 0.085 ~ 0.105 Ω at 20 °C (68 °F) 
      My reading was 0.3 Ω
    • 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 Stacy Hanks
      I have  2000 Yamaha bear tracker 250 - igniton relay and starter relay both were replaced also the neutral switch indicator was replaced-- bike will not show light on for neutral or start when button is pushed
       
    • By orvilleortiz538
      So My 07 Kymco Mongoose 300 was having a bit of choke issue and I have an Ultrasonic and decided to dip it in for a good clean up,and now the atv don’t want to start,it tried but it backfired a little bit but still won’t start,any suggestions?
       
       
      Sent from my iPhone using Tapatalk
    • By Ryan Geiler
      New to the ATV world, picked up a solid used Kodiak 400.  It appears the former owner did some sort of modification for a saddle bag or something along those lines--and I'd like to match it up and replace it.  Not a big deal by any means but something I thought I would give a shot at finding.
      does anyone recognize what kind of luggage/bag/cargo would go where those white tabs are he drilled through that fuel fender?
       
      Thanks again

  • 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 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 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 Srx_Man
      Hey I own stock why Yfz 450 and I'm just looking to slap a turbocharger on it.. I was just wondering if they're pretty compatible with these machines it is the carburetored version Yfz 450. I have all the piping hook ups / kit that's threw HURON SPEED an i also have turbo lined up for it gt 12.. I was just wondering what else I need to make this work? I know i would need to up the Jets and stuff for starter but Is it just that simple or do I need blow off valves and like some time on regulator on it or so forth? Trying get ideal what i would need
    • By M0BJT
      Hi Everyone
      This is my first post and I was wondering if there is anyone who can help me solve a problem I have with my Yamaha Kodiak 400 4x4 Fitted with a Mikuni Carburetor . The year of the quad is around 1998, the reason I am not sure of the date is, there wasn't any paperwork and no details on the frame either.
      The quad had a bad leak from the carb overflow which indicated that the float needle valve was blocked or passing so I replaced this and put everything back together. The quad ran really well until I took it onto some rough ground to have a ride around, a few hours later the engine started to run really rough as if the engine was flooding. I have removed the carb again and cleaned the needle valve out and the whole of the carb just in case there where any dirt behind it. Engine now runs fine again but fuel has started to run out the carb overflow again.
      I have tried everything to try and stop the fuel leaking out the overflow but its still happening. My last thoughts where to adjust the float level and its still happening.
      Has anyone got any thoughts on the problem or could suggest whats causing the fuel leaking out the overflow.
      Thanks for reading
      Kevin
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...