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post #1 of 6 (permalink) Old 05-05-2014, 10:59 AM Thread Starter
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Oil pressure up and down

I'm experiencing a huge variance in oil pressure.
When the bike is cold it is around 32 steady. Then once I've been out cruising for a while, the oil pressure drops with rpm at an idle.
Once I take off from the light or whatever, pressure comes back up?

What could be causing the variance? I'd hate to hurt her....
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post #2 of 6 (permalink) Old 05-05-2014, 11:02 AM
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At idle, oil pressure will drop to a very low level, like 5 to 8...... Don't worry.... it's normal. Running down the road your pressure should be around 32 or so. It varies from bike to bike. The gauge is not a precision instrument.








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Last edited by PGR; 05-05-2014 at 11:04 AM.
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post #3 of 6 (permalink) Old 05-05-2014, 07:35 PM
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What PGR is telling you is exactly right these engines are roller bearing rods,they dont need high oil pressure at an idle.

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post #4 of 6 (permalink) Old 05-05-2014, 08:58 PM
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The previous posts pretty much hit the nail on the head. The important thing is that it's full and it does come up off of idle

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post #5 of 6 (permalink) Old 05-06-2014, 06:33 AM
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Quote:
Originally Posted by LuckyOnes View Post
I'm experiencing a huge variance in oil pressure.
When the bike is cold it is around 32 steady. Then once I've been out cruising for a while, the oil pressure drops with rpm at an idle.
Once I take off from the light or whatever, pressure comes back up?

What could be causing the variance? I'd hate to hurt her....
To answer the question, as to what is causing the pressure to drop once it comes to full operating temp, is that the oil viscosity thins up under heat.
If it is moving around after fully warmed, then the oil pressure relief plunger is sticking in it's bore, and can be polished to stop it from occuring.
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post #6 of 6 (permalink) Old 05-08-2014, 04:04 PM Thread Starter
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Thanks guys.
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