Question about 2004 Yamaha YZ 250 F

3 Answers

Drain the oil and crank oil

I accidentally drained the crankcase oil thinking it was the actual oil. When I drained the oil itself out of the reservoir on the front of the bike, it looked like the same oil.
I would like to know if the oil is the same; where I can fill the oil reservoir, because the little screw at the top of it is not very big at all; and if the crank case fill area with the only screw off black cap will fill both the crank and the oil reservoir.

Thank you,
-John

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The Only YZF That I Have Seen With Oil Tanks Is The Raptor 660 And The YZF 450. You Change (Drain) And Fill At The Tank. Do Not Drain At Engine It Could Starve The Oil Pump At Start Up. If The YZF Motorcycles Have Oil Tanks The Same Procedure Will Apply.

Posted on Apr 14, 2013

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  • Master
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Hi buddy if your on about the brake reservoir there totally different lubricants to refill the oil in the engine you need to unscrew the filler plug on the left side casing of the engine the blue plug on pic below and replace the oil with {silkolene pro 4 sx 15w-50} fill this up until it reaches 1/2-3/4 full on the oil sight glasslocated on the right casing also the brake reservoir is on the front brake lever pic below will show you unscrew the lid to refill with dot 4 brake fluid also the same with rear fill with dot 4 hope this helped buddy get back to me if any probz Drain the oil and crank oil - b6ce58c.jpg
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Posted on Sep 09, 2009

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  • Master
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Here is a link that details the procedures for oil change: http://www.thumperfaq.com/oil_change.htm#Strain

From what it says, they are the same and you fill both at the tank cap behind the steering head.

Posted on Sep 09, 2009

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Posted on Jan 02, 2017

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