Quantcast
Jump to content

Recommended Posts

Posted

My wife rides a 86 Yam moto 4 YFM225

We picked up for cheap and it runs great.

Im a big dude and it actually really rips for being what is nowadays a smaller quad. I noticed the clutch is slipping. It takes a couple seconds to really engage. I think the previous owner used car motor oil which may cause it but it may be worn out.

My question is that in owners manuals and other forums, there are mentioned adjustments that can be made to them but is this just for manual clutches as mine is an auto clutch. I ordered new clutch parts and will be using 4 stroke oil for sure.

Has anyone reclaimed a clutch by just changing to proper oil?

Posted

Yes I agree with Oxy. My 86 Moto4 200 has an adjustment for the autoclutch . Its by the foot brake. Like Oxy said its a slotted screw with a jamnut on it. Dont adjust more than a few degrees at a time. You can burn up the clutches if you adjust it too much.

I ran 10-30 in my moto4 for years. I was misinformed. I switched to 4 stroke oil and it made quite a difference in the shifting and engagment.

Sent from my SGH-T989 using Xparent Blue Tapatalk 2

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 Forum Topics

    • By Coyote251
      I'm trying to help a buddy out with his bike (he's not really on the internet or familiar with these forums) and I'll admit that I am not super familiar with the transmission and clutches in these bikes. I owned a Brute a few years ago, but never had an issue like this that I had to troubleshoot.
      So basically my buddy bought a group lot of 650's to build one good bike out of. He got it all put together and has it running but when he pushes on the throttle the clutch doesn't engage till the RPM's are quite high and even when its moving it doesn't really speed up, almost seems like its in "limp mode". He's tried 2 different transmissions so I don't think that's the problem. 
      Is there any adjustment on the clutch engagement? Anything else I can tell him to look at? Let me know if you need anymore information if you think you can help.  
    • By Rich1028
      I Crashed My Quad
      Well the Way I Ride, some of you knew it was Inevitable.
      Below are Three Videos.
      First one is Slow Motion of How it Happens.
      Second one is Normal Speed, and what happens after the Accident.
      Third one Follows more of what happens after .

      I Was Riding By Myself. I was going through a Mud HOLE Either there was a log or a rock, or A Dip but just as I was almost through it, Machine, Rolled over on my right side, as soon as I contacted the ground, I Heard A SNAP! I got up, flipped the Quad back over. I had the wind knocked out of me.

      5 broken Ribs
      1 Punctured Lung
      1 Broken Collar Bone
      2023 Quad Riding Season is Over for ME!
       
       
       
    • By Kaz
      Troubleshooting a no spark issue, was running OK, maybe a little rich, turned it off, now no spark. I've checked/ohmed out the main key switch, the start/stop switch, neutral switch, brake switch - all good. It will crank the starter, but no spark with the starter or when I try the pull start. I've checked all fuses and diodes. Swapped battery. New plug. New coil. Swapped in a used CDI - no help. Traced, removed, cleaned, reattached all grounds. Removed things like my winch from the circuits to be sure a bad relay or something was dragging it down. When testing voltages, the orange wire going from the CDI to the ignition coil shows no/very low voltage-shouldn't it have 12V on it? Sometimes I get a very weak, intermittent glow on my spark tester, but not enough to fire the plug. I've checked continuity on just about all wires in the harness. Checked/cleaned/lubed w dielectric grease- all connections, redid a few that looked old/dirty. I've checked the stator resistances, all good, but have a stator and rectifier ordered anyway, will arrive Sunday. I verified that the rectifier has a voltage output back to charge the battery while cranking - 10.5-11V, low, but expected while starter is engaged. What else can I check as part of troubleshooting? I have a Haines service manual, but the 1999 350 4x4 seems to be an odd model, there isn't an exact electrical diagram for it, but found one for another year that has all the same number of wires and same color wires, so I've referenced that. Any hints, tips or advice would be appreciated! Thanks!
    • By KSIM
      View File 2018 CF-MOTO Z-Force CF1000US-2 service manual
      CF-MOTO Z-Force (CF1000US-2) (2018) service manual
      Submitter KSIM Submitted 03/19/2025 Category Other Brands UTV  
    • By P_syko
      I’m brand new to 4 wheelers and just bought a 1987 Yamaha Moto 4 350. It has good compression and fuel, but no spark. I’ve looked high and low trying to find how to test all the components of the ignition system, but can’t find anything. This has a new CDI box on it, but I suspect it might be the stator. How do I test the stator on this? Any help would be greatly appreciated! 
×
×
  • Create New...