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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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 Posted: Fri May 23, 2014 4:58 am Post subject: 90hp Suzuki shuts down at idle |
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My 90hp Suzuki is shutting down when idling after we run it to the marina from Bear Island. Makes docking a challenge. Marina mechanic can't seem to fix the problem. Also, he reports gas in oil. This is a 2005 model with many hours.
Anyone have a clue?
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katkt
Joined: 27 May 2004
Posts: 243
City/Region: Pensacola
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Vessel Name: Katie Kat
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| Posted: Fri May 23, 2014 8:30 am Post subject: |
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| Carbed or fuel injected? |
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starcrafttom
Joined: 07 Nov 2003
Posts: 7932
City/Region: marysville
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C-Dory Year: 1984
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Vessel Name: to be decided later
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| Posted: Fri May 23, 2014 11:05 am Post subject: |
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If its not the low idle adjustment then may be a leak in the auto choke vacuum line? Just guessing but that is where I would start.
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Thomas J Elliott
http://tomsfishinggear.blogspot.com/ |
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Jazzmanic
Joined: 07 Feb 2005
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City/Region: Seattle
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| Posted: Fri May 23, 2014 12:33 pm Post subject: |
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mdoug,
I hope you're not experiencing the infamous Suzuki corrosion problems experienced by many Suzuki motor owners of that vintage. That's one of the symptoms.
Has your boat been moored in the water or dry stored? Check out this thread:
Suzuki Corrosion
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Peter & Caryn
C-Dancer - 2005 22' Cruiser 2005-2017
Island Time - 2018 Ranger Tug 23 2017-2022
Email: pjamero@gmail.com |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Fri May 23, 2014 3:28 pm Post subject: 90hp suzuki |
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| katkt wrote: | | Carbed or fuel injected? |
fuel injected |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Fri May 23, 2014 3:29 pm Post subject: 90hp Suzuki |
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| starcrafttom wrote: | | If its not the low idle adjustment then may be a leak in the auto choke vacuum line? Just guessing but that is where I would start. |
Thanks! |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Fri May 23, 2014 3:29 pm Post subject: 90hp Suzuki |
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| Jazzmanic wrote: | mdoug,
I hope you're not experiencing the infamous Suzuki corrosion problems experienced by many Suzuki motor owners of that vintage. That's one of the symptoms.
Has your boat been moored in the water or dry stored? Check out this thread:
Suzuki Corrosion |
Nope |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Fri May 23, 2014 3:32 pm Post subject: 90hp Suzuki, 2005 vintage |
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| Lots of bad reports online about this vintage suzy. My mechanic is baffled. I plan to buy a new engine. |
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digger
Joined: 02 Nov 2003
Posts: 496
City/Region: Spokane
State or Province: WA
C-Dory Year: 1993
C-Dory Model: 22 Angler
Vessel Name: C-Sik
Photos: Snoopy-C
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| Posted: Fri May 23, 2014 4:32 pm Post subject: |
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| If 1 of the fuel pumps is driven by the camshaft, a ruptured diaphragm can leak fuel into the crankcase via the valve train area. That could explain the gas in the oil. |
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BrentB
Joined: 15 Jul 2006
Posts: 4420
City/Region: Greenwood
State or Province: IN
Photos: BrentB
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| Posted: Fri May 23, 2014 5:21 pm Post subject: |
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Has it been scanned with diagnostic software?
Maybe just a bad sensor
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rogerar
Joined: 10 May 2008
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City/Region: SW FL
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C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: Duck
Photos: Duck
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| Posted: Sat May 24, 2014 6:02 am Post subject: |
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Idle speed is controlled by the IAC (Idle Air Control). It is electronic and must be diagnosed by plugging the motor into a computer w/ SDS(Suzuki Diagnostic Software). Are you getting any trouble codes?
If its leaking exhaust from corrosion, you should get 1 or more trouble codes from the engine.
Roger |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Sat May 24, 2014 6:05 pm Post subject: |
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| digger wrote: | | If 1 of the fuel pumps is driven by the camshaft, a ruptured diaphragm can leak fuel into the crankcase via the valve train area. That could explain the gas in the oil. |
Thanks |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Sat May 24, 2014 6:07 pm Post subject: |
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| BrentB wrote: | Has it been scanned with diagnostic software?
Maybe just a bad sensor |
Yep. Marina ran all diagnostics, found only a timing issue that may be a false alarm, |
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mdoug
Joined: 09 May 2006
Posts: 53
City/Region: Meredith
State or Province: NH
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mikey
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| Posted: Sat May 24, 2014 6:09 pm Post subject: |
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| rogerar wrote: | Idle speed is controlled by the IAC (Idle Air Control). It is electronic and must be diagnosed by plugging the motor into a computer w/ SDS(Suzuki Diagnostic Software). Are you getting any trouble codes?
If its leaking exhaust from corrosion, you should get 1 or more trouble codes from the engine.
Roger |
Nothing other than a possible timing issue. Marina returned Mikey to me running ok yesterday, So far, so good.
Thanks to all for the help! |
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BrentB
Joined: 15 Jul 2006
Posts: 4420
City/Region: Greenwood
State or Province: IN
Photos: BrentB
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| Posted: Sat May 24, 2014 9:33 pm Post subject: |
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thanks
Any explanation on gas in the oil?
How old are the thermostats?
The IAC can be removed and cleaned with throttle body cleaner and a few Q tips |
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