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    Welcome to QUADCRAZY, an online ATV Forum & Community. Connect with fellow ATV and UTV enthusiasts on our active forum dedicated to all things off-roading. Share tips, tricks, and stories, and get advice from experienced riders. Find ATV and UTV owners and enthusiasts ranging across all makes including Suzuki, Yamaha, Polaris, Arctic Cat, Kawasaki, and Honda. Join today!

Yamaha ATV Forum

Yamaha ATVs conquer mud, snow, hills and trails with ease. Get the inside scoop on Yamaha's latest ATVs, join discussions on upgrades, maintenance and repairs, and share your off-road adventures on this comprehensive Yamaha ATV forum.

1,946 topics in this forum

  1. 2001 Yamaha Wolverine Cam Install

    By Creedswolverine,   
    • 2 replies
    • 3.5k views
  2. Emanualonline.com

  3. yamaha moto 4 200 air filter case

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  4. 1998 Timberwolf oil leak

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  6. Need HELP Moto 4 Clutch Carry Assembly Issue

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  7. 91 Yamaha Big Bear 350 rear axle problems

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    • 4.5k views

  8. Any way to make Grizzly 550 exhaust sound better for cheap?

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  9. 1996-1998 Wolverine CDI for sale!

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  10. 98 Timberwolf brakes

    By Larryr,   
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  11. 95 Wolverine rear axle splines stripped

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    • 3.9k views

  12. yamaha big bear 1987 350 4x4 electrical problem

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    • 3.8k views

  13. 1995 yamaha big bear 350 4x4 cv axle issue

    By Douglas2008,   
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  14. Request Rear Hub Interchange Chart

    By sobitthen,   
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  15. needing some info and opinions please!! 97 yamaha big bear 350 smoking!

    By Jeremyv,   
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  16. 2000 Yamaha Grizzly 600 Shop Manual Needed

    By bassy,   
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    • 18.7k views

  17. 2004 Yamaha Raptor 350 service manual

    By danijelP7b,   
    • 0 replies
    • 2.2k views

  18. 99 wolverine,starts one day but not the next

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  19. 2000 wolverine 350 crank woodruff key slot fix?

    By bgooch73,   
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  20. 2007 Grizzly 125 manual

    By Breakaway2670,   
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  21. Yamaha Online ATV Parts Catalog

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  22. wolverine clunking, knocking sound

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  23. 1988 Yamaha Terra Pro (YFP350)

    By wHarmon,   
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  24. Wolverine

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  25. 1988 Big Bear 350 4 x 4 Will not run

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    • 5k views

  26. Yamaha Kodiak 450 tail light

    By creece,   
    • 0 replies
    • 2.4k views

  27. 1990 Yamaha 250 noisy driveline

    By Yami,   
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  28. Moto 4 350 ?

    By Pausha,   
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  29. Big Bear 400 starts, then stalls suddenly.

    By Timbro,   
    • 0 replies
    • 6.4k views

  30. 1987 Yamaha Big Bear - Pivot Shaft Stuck

    By extinctgopher,   
    • 2 replies
    • 3.3k views

  31. 1998 bigbear 4x4 rear brake help

    By jtmm1960,   
    • 1 reply
    • 2.7k views


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  • Recent Forum Topics

    1. 2

      Has anyone had a suzuki 230 quad lock the engine up?

      Interesting valves should have stopped the piston before it hit the plug did it do anything weird before it stopped running. I would probably pull the cover and inspect the timing chain first, maybe see if it will budge with a wrench on the cranknut, dont go crazy with it just move it back and fourth gently.
      Gwbarm in Suzuki ATV Forum
    2. 2

      Has anyone had a suzuki 230 quad lock the engine up?

      You need to keep posting till you can download the service manual; That tells you what work can be done with the engine in place. If you tell us the year and exactly what model it is, I or someone can check for you.. They come in chain or shaft drive, and with or without electric start, and I wouldn't be surprised if there were kick or pull start versions as well.. We need the suffix of the model number..
      Mech in Suzuki ATV Forum
    3. 2

      Has anyone had a suzuki 230 quad lock the engine up?

      Has anyone had a suzuki 230 quad lock the engine up? Its a well maintained bike, it locked up when my son was riding it. Pulled the plug, it has connected with the piston. I'm thinking the con rod let go. I don't have a service manual. Does the engine need to come out to check further?
      docdoug72 in Suzuki ATV Forum
    4. 25

      1989 Moto 4 YFM350ERW intermittent spark.

      Ha.. That is a bummer.. That it's started to work ! I hate that too, all the more since I'm a mechanic. Perhaps now leave it idling and wriggle all the wires everywhere bit by bit hoping to find a short or broken wire that makes the motor die.. Wires mostly only break right where they go into the metal crimped terminal, and they break inside their insulation so you need to use long nosed pliers to gently tug on those ones, and the other place that used to be more common in the past when they used thick wires, was up near the steering head where they flex. Shorts to the frame of course.. anywhere. I'd also check the switches.. The kill in particular is prone to dirty or mud filled contacts. The mud not actually being a dirty contact problem, but when it gets wet it can short enough to cause problems. And thanks for the thanks. It's my pleasure.
      Mech in Yamaha ATV Forum
    5. 25

      1989 Moto 4 YFM350ERW intermittent spark.

      Sorry for lack of response but have had little internet the last few days. I do want to thank you for all your help with this as I had a big learning curve. Not having good schematics didn't help either. It has started to work. I hate problems that just go away on their own. The fact that the pit bike CDI worked from the start leads me to believe that it is most likely one of the interlock inputs. I suspect that one of the interlock switches was flaky and when I checked it without any movement it would show good and when the motor was rotating it would come and go. If not that then a bad connection that when disconnected and reconnected. The fact that the pit bike CDI worked from the start leads me to believe that it is most likely one of the interlocks. I have not tested it by riding it as I want to go through the brakes and make sure they work good before I do as it has set so long. Stopping is always a good thing. Luckly this ATV will mostly be used on my property in Idaho and not on trails so when (not if) this problem appears again I won't be in some remote location. I also plan to take the older CDI that I purchased and that didn't work and cut the connectors off and wire up the pit bike one to have as an emergency spare. This will disable all the interlocks but should allow me to get it back to the garage easily.
      RGS in Yamaha ATV Forum
    6. 193

      2024 Presidential Election Discussion Thread

      Believe half of what you read and nothing of what you hear.
      88Tecate4pal in General Talk - Anything Goes!
    7. 9

      New member / quad lover

      Wow! Thank you. So I must have a QuadRunner, has auto trans w/reverse and electric start. After the VIN is LT230E and then a stamped letter "H". Any idea what "H" is for? Mfr. Date is 06/86
      RadRob in New Members Area!
    8. 20

      Oxidized or faded plastic body parts

      Thanks. Guess I need to get sanding.
      RadRob in General Talk - Anything Goes!
    9. 0

      2019-2024 Yamaha YFZ 50 Service Manual

      View File 2019-2024 Yamaha YFZ 50 Service Manual 2019-2024 Yamaha YFZ 50 Service Manual Submitter wanrep Submitted 05/04/2025 Category Yamaha ATV  
      wanrep in Yamaha ATV Forum
    10. 0

      2017-2018 Yamaha YFZ 50 Service Manual

      View File 2017-2018 Yamaha YFZ 50 Service Manual 2017-2018 Yamaha YFZ 50 Service Manual YFZ05YYXH YF05RH Submitter wanrep Submitted 05/04/2025 Category Yamaha ATV  
      wanrep in Yamaha ATV Forum

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