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190 XT fuel question
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farmboycitygirl View Drop Down
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Joined: 16 Feb 2010
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Points: 128 		Post Options Post Options   Thanks (0) Thanks(0)   Quote farmboycitygirl Quote  Post ReplyReply Direct Link To This Post Topic: 190 XT fuel question
    Posted: 18 Feb 2010 at 8:16am
I noticed a few weeks ago when running my 190 the engine would speed up and slow down.  I am thinking it is 'lack of fuel'.  I was going to replace the fuel filter and put a electric fuel pump on it.
 
What do you all think?
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Lonn View Drop Down
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Points: 29805 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 8:42am
You in cold weather? Could be gelling or plugged filters. try that first. My guess would be the inj pump seal is coming apart.
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Gary (sw Wis.) View Drop Down
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Points: 216 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary (sw Wis.) Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 8:49am
Valve leaving the fuel tank could be partially plugged.
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kinghunter View Drop Down
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Points: 408 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kinghunter Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 9:26am
i had that same problem and had to clean settling bulbs and get flow going again as everything was clogged up once clean it run like new again.
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Joe(TX) View Drop Down
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Points: 1682 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe(TX) Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 10:51am
It is a sign of restricted fuel flow or a weak supply pump inside the injector pump.
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Mike NEIN View Drop Down
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Points: 405 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike NEIN Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 11:42am
The rubber seals in the hand primer pump will do it too.
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Brian Jasper co. Ia View Drop Down
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Points: 10508 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian Jasper co. Ia Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 12:11pm

Or the inertial ring in the governor section in the pump is coming apart and the little bits are restricting the return outlet on the pump. You might take the return fitting off the pump and start the engine and watch for little black bits coming out with the fuel.
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Pete from IL View Drop Down
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Points: 311 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Pete from IL Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2010 at 10:01pm
You really don't need an electric fuel  pump on a 190. The first thing you do is shut off both fuel shutoff valves under the tank, (on top of sediment bowls). Take off sediment bowls, then open the shutoff valves one at a time and see if the fuel flows out freely.If the fuel comes out very slowly or not at all  you have a blockage where the fuel comes out of the tank and into the sediment bowl. Open the shutoff valve on the bowl that is restricted and take an air nozzle and blow air in the hole where the fuel  should be coming out. You then should have fuel flowing out freely. Look in the tank and check for debris . If the tank has a lot of crud in it you may have to have the tank cleaned out . The next place to look is the fuel filter, lines , return line, then inj. pump.
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SteveM C/IL View Drop Down
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Points: 8613 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2010 at 10:00pm
I vote for the governor ring.If its' been YEARS since pump was down,that's probably it.Do what Brian says and "inspect" return fuel.
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