Join Date: Apr 2005
Location: North Wilkesboro, NC
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Re: 2002 Yamaha YZ250 Gear Oil Level
How about a check plug? I don't remember for certain on those. But if it is a check plug, look for phillips head screw in the right-hand side cover. May have a jam nut on it. The check port is used similarly to a sight glass...remove the plug, hold the bike level. At the proper oil level, you should get just a little trickle of oil coming out of the port. If you have too much oil, this is a good place to let it out too. Albeit slow, you can check continously as you go. If too low, just fill slowly until you get the trickle.