1987 Xl600r Engine Problem (oil Pump?)

I Have Been Patiently Restoring This Bike For The Past Year Or So. After $800 And Blood, Sweat And Tears, I Finally Had It Running But Only For About A 100 Meters Or So. The Engine Sounds Like It Is Going To Seize! It Revs Up, Rings Vibrate, Then Dies. I Was Able To Restart Twice But Ended Up With The Same Problem. Could It Be The Oil Pump Malfunctioning? Oil Not Getting Into The Cylinder? Or Something Else! I Hope I Haven't Done Anymore Damage. How Do I Check If The Oil Pump Is Working? Thanks!

What are the other symptoms of the bike? Does it idle no prob? What does it sound like at idle? If you rebuilt it right, I wouldn't think there would be a problem w/ it seizing. I'm not quite sure how the oil pump works on those things, but is it a dry sump or a wet sump motor? And usually you wouldn't be able to hear rings vibrate. If you hear something vibrate, its usually something else on the bike; like a loose belly pan, or something along those lines. If you provide more info, I MIGHT be able to help.

Crack open the bolt going through the banjo fitting on the oil line going to the top of the head while the engine is running. Oil should start seeping out pretty quick. This will tell you if your oil pump is working. (Unless the filter is in backwards)

IT WAS THE OIL PUMP! I LOOKED INTO THE OIL FILTER AND IT WAS BONE DRY! SOMEHOW OIL IS NOT GETTING INTO THE OIL LINES AND INTO THE CYLINDER HEAD :banghead: I WILL DISASSEMBLE THE PUMP AND BLOW COMPRESS AIR INTO ALL THE PASSAGES AND OIL LINES AND SEE IF IT WILL WORK! OTHERWISE, OFF TO THE CLEANERS... AGAIN! THANKS!

You might want to put some transgel or vaseline in the pump gears to prime it. I do this in auto engines all the time. And make sure your two screens aren't clogged. Go here for more info: XR oil pumps

You absolutely have to prime these pumps! I learned this the hard way myself and it sounds like you may have also. Two top ends and I was out of the Honda game for a while, too bad because I loved that bike.

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