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Mercury fuel delivery issue??
#11835453
09/18/16 05:48 PM
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Joined: Nov 2010
Posts: 256
Pantera III
OP
Angler
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OP
Angler
Joined: Nov 2010
Posts: 256 |
I have 99 optimax 200 hp. Thinking I could have a fuel delivery issue. Motor is bogging down at low rpm (1800- 2200). Runs great top end. Recently serviced and plugs and fuel filter replaced. Some time it seems to bog or hesitate worse than other times. I'm thinking possibly fuel pump? But bulb is staying firm. Any ideas greatly appreciated.
Last edited by Pantera III; 09/19/16 02:55 AM.
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Re: Mercury fuel delivery issue??
[Re: Pantera III]
#11835564
09/18/16 07:08 PM
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Joined: Nov 2010
Posts: 256
Pantera III
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Angler
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OP
Angler
Joined: Nov 2010
Posts: 256 |
Forgot to mention that full diagnostics was ran and everything checked out
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Re: Mercury fuel delivery issue??
[Re: Pantera III]
#11836343
09/19/16 02:57 AM
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Joined: Nov 2010
Posts: 256
Pantera III
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Angler
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OP
Angler
Joined: Nov 2010
Posts: 256 |
Ok, so after digging in the engine a little bit both high and low pressure fuel pumps seem to be operating correctly and no debris in housing.
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Re: Mercury fuel delivery issue??
[Re: Pantera III]
#11836808
09/19/16 02:33 PM
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Joined: Nov 2010
Posts: 256
Pantera III
OP
Angler
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OP
Angler
Joined: Nov 2010
Posts: 256 |
Any body?? Maybe coil pack?
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Re: Mercury fuel delivery issue??
[Re: Pantera III]
#11836919
09/19/16 03:31 PM
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Joined: Mar 2003
Posts: 1,384
lcbl75771
Extreme Angler
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Extreme Angler
Joined: Mar 2003
Posts: 1,384 |
I had issues for a long time with my motor bogging down. I never would have suspected it, but when the fuel pump was replaced the oblong gasket behind it got off and blocked the pulse hole a little. Needless to say I replaced a lot of stuff before I figured it out.
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Re: Mercury fuel delivery issue??
[Re: Pantera III]
#11845285
09/23/16 07:17 PM
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Joined: Nov 2010
Posts: 256
Pantera III
OP
Angler
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OP
Angler
Joined: Nov 2010
Posts: 256 |
Appears to have been a coil. Swapped out and running like a top now
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