1200 - oil pressure issues at idle - Triumph Forum: Triumph Rat Motorcycle Forums
Trophy Trophy 3 & 4 - for all 900 and 1200cc models 1991- 2004

 
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post #1 of 7 (permalink) Old 09-27-2009, 01:37 PM Thread Starter
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1200 - oil pressure issues at idle

Hi All, I have a 98 1200 Trophy with less than 7K on the clock.. so hardly used. Anyhow, I have an issue with the engine oil pressure warning light coming on at idle. It only happens when the engine is hot, i.e. engine fan is controling. When idling, the oil light starts to flicker. The hoter the engine the brighter the warning light. If I blip the throttle, the light goes out imediately, but as so as she returns to idle it lights back up again. I have set the idle speed at 1200, but that doesnt seem to cure things if the bike is idling in London traffic on a hot day. Oil has been changed and levels checked. All good. As there are no issues when the bike is cold or at normal running tempreature, the local dealer suggest changing the pressure switch, but I am sceptical. Any thoughts please..??? Thanks, Andy

Last edited by ADB955i; 09-27-2009 at 01:39 PM. Reason: spelling mistakes
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post #2 of 7 (permalink) Old 09-27-2009, 10:59 PM
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I thought the oil light on the Trophy was a level indicator light. I may be mistaking this for my Yamaha. Hopefully someone will correct or confirm this.

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post #3 of 7 (permalink) Old 09-27-2009, 11:28 PM
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When my bike gets hot I get the pulsing oil light. The couple times it happened this summer it was 90 degrees F and I was trapped in stop and go traffic. When I was able to get going and cool the motor, the pulsing lights disappeared. My oil level has not moved a milimeter so I just wrote it off to funky electrics.

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post #4 of 7 (permalink) Old 09-29-2009, 09:30 AM
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My 99 with 58000 miles does a similar trick. When hot, the oil light comes on at idle. The hotter it gets the higher the revs have to be to go out, up to 1900 RPM sometimes. I have purchased another switch, with the longer shaft to put an Oil Pressure guage on. The book says there sould be 40lbs at 4500(?)RPM at operating temp. I'll get around to it one day.
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post #5 of 7 (permalink) Old 09-29-2009, 04:05 PM Thread Starter
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My 99 with 58000 miles does a similar trick. When hot, the oil light comes on at idle. The hotter it gets the higher the revs have to be to go out, up to 1900 RPM sometimes. I have purchased another switch, with the longer shaft to put an Oil Pressure guage on. The book says there sould be 40lbs at 4500(?)RPM at operating temp. I'll get around to it one day.
Thanks for the advice. I was beginning to wonder if I had the only 1200 that did this little trick.. Now I know better. Thanks again..
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post #6 of 7 (permalink) Old 09-29-2009, 06:07 PM
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The instrument panel icons are known to act up. My temp. lite would appear faintly and pulse with the turn signals. I'd positively check the pressure, though.

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post #7 of 7 (permalink) Old 09-30-2009, 09:27 PM
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The usual cause is a bad/poor ground for the indicator lights. There is a modification to the lighting wires that is less than an hour fix (or two beers). I do not have the repair link anymore due to a dead then resurrected computer. But the repair is for adding a wire to the ground circuit off the connector plug to frame.
The main thing it is not a low oil pressure problem, but wires.
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