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#11618239 - 05/22/16 01:27 PM Mercury xri 150 problems
BassMan922 Offline
Angler

Registered: 04/22/10
Posts: 304
Loc: Midland, Tx
It's a 96 Mercury xri 150 efi. Runs great on low end and high end but starting and starting it after running is next to impossible. I puffs serious white smoke every time but once started it runs like a dream. Any help would be much appreciated.
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#11618267 - 05/22/16 01:48 PM Re: Mercury xri 150 problems [Re: BassMan922]
GIG'EM AGGIES Offline
Extreme Angler

Registered: 05/14/14
Posts: 1142
Loc: texas
Bassman, what I found with mine was the motor had to be level to start good. If it was trimmed up even just a little it was hard to start. I was told it had something to do with the float system but don't know that for sure. I know that once I found this out my Merc would fire right up every time usually without even choking it. Hope this helps.
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Long ago when men cursed and beat the ground with sticks it was called witchcraft, nowadays it's called golf.
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#11618521 - 05/22/16 04:11 PM Re: Mercury xri 150 problems [Re: BassMan922]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10775
Loc: Littlefield Tx & Lake A. H. US...
Mecury`s oil system works off of pressure from the crankcase via a pulse valve and if the bleed in the pulse valve stops up it will do just that. Causes the tank to maintain too much pressure when motor is turned off.
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#11618581 - 05/22/16 05:05 PM Re: Mercury xri 150 problems [Re: BassMan922]
BassMan922 Offline
Angler

Registered: 04/22/10
Posts: 304
Loc: Midland, Tx
So is it the bleed of or do I need to change the pulse valve?
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#11618650 - 05/22/16 05:55 PM Re: Mercury xri 150 problems [Re: BassMan922]
TLW Offline
Extreme Angler

Registered: 11/16/06
Posts: 2040
Loc: ft worth
sounds like MIGHT have something ta do with tha enrichner circuit... trim it ALL tha way in when ya start... see if that helps at all.

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#11618835 - 05/22/16 07:12 PM Re: Mercury xri 150 problems [Re: TLW]
BassMan922 Offline
Angler

Registered: 04/22/10
Posts: 304
Loc: Midland, Tx
Originally Posted By: TLW
sounds like MIGHT have something ta do with tha enrichner circuit... trim it ALL tha way in when ya start... see if that helps at all.



I have done that and the problem persists
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