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  1. Jetting and fluids, Sportsman 400

    ATV Repair and Maintenance
    OK, I have searched the threads and not found exactly what I am looking for. I just purchased a 2012 Sportsman 400, and am setting it up for use primarily OVER 10,000 ft., in Colorado. This is what I am in the process of doing. If anyone else has dialed in a 400 for high altitude use, please...
  2. Oil for a 2000 TrailBoss 325?

    ATV Oil, Lubrication & Filter
    Sorry...I'm a rookie. Just picked up my first ATV and put 20-30 hours on it and want to change the oil. Cant find a manual...Two questions: 1. What kind of engine oil should I use in it? How often should I change it? 2. What kind of transmission fluid does it use? How often should I change...
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