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  1. Will boring my raptor 350 give me much more power

    Yamaha YFM350 Raptor/Warrior ('87-Present)
    I want more speed but don't want to buy a new ATV, so i just want to bore it to like a 378 or around there. But i'm not sure if i will get more top end. :???:
  2. Boring a warrior 350

    Yamaha YFM350 Raptor/Warrior ('87-Present)
    i have a 1998 yamaha warrior and am looking to do some motor work on it i was wondering if anyone had any advice on how big to bore and a good bore kit itself
  3. Jetting Suggestions

    Yamaha YFZ350 Banshee (1987-Present)
    I am about to get my banshee bored either .25 over or .5 over depending on how big the scar in my cylinder is. I need to know what kind of jets i need to buy for each degree of bore. It is a 100% stock banshee at the moment until the bore. average 300 feet elevation. Any suggstions will be...
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