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post #1 of (permalink) Old 04-18-2005, 06:03 PM
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2002 Yamaha YZ250 Gear Oil Level

I just purchased a 2002 YZ250 and would like to know how to check the oil level in the gear case. My son's KX 125 has a sight glass but the Yamaha does not. Is my only option to drain and refill?
Thanks for any comments in advance.
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post #2 of (permalink) Old 04-22-2005, 09:15 AM
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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.
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post #3 of (permalink) Old 04-25-2005, 03:20 PM
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Re: 2002 Yamaha YZ250 Gear Oil Level

I have a 2001 yz250. It should be the same. One of the bolts that holds the clutch cover on has a copper washer on it. Thats the one. If bike is level and oil drips out when bolt is removed level is ok. Mine hold about 3/4 of a quart.
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post #4 of (permalink) Old 04-26-2005, 11:05 PM
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Re: 2002 Yamaha YZ250 Gear Oil Level

.79 qt
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post #5 of (permalink) Old 04-27-2005, 10:43 AM
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Re: 2002 Yamaha YZ250 Gear Oil Level

Personally, I hate watching ice melting, and oil dripping.

I generally use Type F ATF in my tranny (I like the durability and clutch feel) which runs out the check hole a little faster than oil, and is more visible.

On oil changes - use a RatioRite (or similar) to measure out the oil first.
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