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Dec 30th, 2023
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 Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
#5780562
01/30/11 11:02 PM
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Joined: Jan 2011
Posts: 22
Javelin74
OP
Outdoorsman
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OP
Outdoorsman
Joined: Jan 2011
Posts: 22 |
Started the old motor in the drive way today with the ears and it was idling high. First time I have started it this year since probably August. Any suggestions, I am very limited in motor knowledge, so my best bet would be to take it in. Been a while since I have had it serviced, what could something like this run me at a shop?
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: Javelin74]
#5780720
01/30/11 11:40 PM
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Joined: Feb 2006
Posts: 48,345
OldFrog
TFF Guru
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TFF Guru
Joined: Feb 2006
Posts: 48,345 |
Could be several things. The first thing you might do, is tell us what engine, model, year and HP.
Now, Donald...please pick John Bolton for your running mate.
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: OldFrog]
#5780965
01/31/11 12:41 AM
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Joined: Jan 2011
Posts: 22
Javelin74
OP
Outdoorsman
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OP
Outdoorsman
Joined: Jan 2011
Posts: 22 |
1993 Johnson 150 V6 Silver Star Series. I can only assume that it is the original motor. Boat is a 1993 Javelin 379. I bought it used 10 or so years ago. Only other problem I have had is the rings on lower unit went out 6 years ago. Been a solid boat for me.
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: Javelin74]
#5781089
01/31/11 01:11 AM
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Joined: Jul 2010
Posts: 1,382
chuck44l
Extreme Angler
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Extreme Angler
Joined: Jul 2010
Posts: 1,382 |
Was your fast idle lever pulled up or possibly stuck?
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: chuck44l]
#5781459
01/31/11 02:21 AM
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Joined: Jan 2011
Posts: 22
Javelin74
OP
Outdoorsman
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OP
Outdoorsman
Joined: Jan 2011
Posts: 22 |
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: Javelin74]
#5782713
01/31/11 02:19 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Pull the cowling and look for obstruction around throttle linkage, like mud dobber nest.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: gary purdy]
#5783814
01/31/11 06:26 PM
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Joined: Apr 2004
Posts: 14,816
Stump jumper
TFF Guru
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TFF Guru
Joined: Apr 2004
Posts: 14,816 |
Pull the cowling and look for obstruction around throttle linkage, like mud dobber nest. +1 My Merc did this one time while on the lake. It was one of the oil injection hoses.
2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: Stump jumper]
#5784297
01/31/11 08:10 PM
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Joined: Oct 2010
Posts: 1,961
96speed
Extreme Angler
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Extreme Angler
Joined: Oct 2010
Posts: 1,961 |
I'd track down along the throttle cable, first.
Female drivers = No survivors
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: gary purdy]
#5784826
01/31/11 09:56 PM
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Joined: Feb 2006
Posts: 48,345
OldFrog
TFF Guru
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TFF Guru
Joined: Feb 2006
Posts: 48,345 |
Pull the cowling and look for obstruction around throttle linkage, like mud dobber nest. Yep. If none there....then take a pic of the linkage, etc and post it here.
Now, Donald...please pick John Bolton for your running mate.
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: OldFrog]
#5785373
01/31/11 11:48 PM
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Joined: Dec 2003
Posts: 3,180
2-stroke
TFF Team Angler
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TFF Team Angler
Joined: Dec 2003
Posts: 3,180 |
And the timer base -- make sure the spark advance rod is pulling it back to its idle position.
Does your motor have the quick-start feature? If so the port side temp switch will have a black/white wire (in addition to the tan wire). Disconnect the black/white wire at the connector, and ground it to the cylinder head, see if it makes a difference. If your powerpack has a yellow/red wire comming from the start solenoid, disconnect that as well.
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Re: Motor in Neutral but is idling at 3500 - 4000 RPM's - WHY??
[Re: 2-stroke]
#5809579
02/05/11 07:10 PM
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Joined: Jun 2008
Posts: 1,379
Kristopher Douglas.
Extreme Angler
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Extreme Angler
Joined: Jun 2008
Posts: 1,379 |
look for a missing spring by the timing advance
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