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87 trx 350 question

1265 Views 12 Replies 3 Participants Last post by  retro
Hey everyone! I went for a pretty long ride today but had to cut it short because I thought my oil cooler, or the left hand oil hose was leaking. There was enough drops of oil to make me concerned. Upon getting home I removed the left hand mud shield and much to my surprise the oil was coming out of one of the breather hoses right there up high next to the frame. Crank case breather hose? Anyone have any idea why that would happen? I was cruising right along when it happened. Going about 30-32mph. Not sure what that translates to In rpm's but I'm guessing near 4000? And thoughts wold be much appreciated as I had a long ride with my girlfriend planned for this saturday. Thanks!
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I think I was mistaken thinking it was oil. I believe it is instead rear differential fluid. It's hard to tell by smell, I don't smell very good and I checked the diff fluid in the rear and it is full. I smelled it and to me it smells similar to oil. That is the only thing it can be after tracing it back. I guess that rear diff doesn't like going that fast! Lol. I'm not going to close the book on it yet but that's where I am so far and just wanted to post back. Thank you for your replies!
rear differential can have water mixed in, be too full, this would cause your issue.
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