Question about 1978 Yamaha RD 250

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Oil pressure loss -

A guy with a 03 dumped the oil(for some unknown reason) while entering the freeway, reving and pulling hard through a few gears. At some point he noticed low oil pressure warning but failed killing the engine. He lets it idle a few hundred meters until next exit. He later filled it up with new oil, engine sounds ok at first but after 10 min it starts going bad with noise and metal parts in the oil. The rest we know.

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  • Anonymous Mar 12, 2014

    I will crank and run fine at first. When it has been running for about 15 min or so, I notice the oil pressure light will come on and off. After that it will start missing and blowing out lots of blue smoke and die. After letting it sit for a few minutes it will crank up and run OK. The blue smoke will go way. What's up with this?? I checked the oil level and it is not low.

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He must have had some other failure. A motor can go for longer than 10 minutes at idle with no recirculating oil. Had an old xr200 that made it about 4 hours with no oil, and we weren't being kind to it.

Posted on Nov 10, 2008

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6ya6ya
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Posted on Jan 02, 2017

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