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Long shot, but you never know

 
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bschell



Joined: 05 Jan 2008
Posts: 56
City/Region: tustin
State or Province: CA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Photos: bschell 2003 22 Cuiser
PostPosted: Fri Oct 22, 2021 5:09 pm    Post subject: Long shot, but you never know Reply with quote

I know this is a long shot... but some of you whippersnappers are pretty sharp.
I have a 2018 Suzuki DF9.9BTX2 it is used as my kicker and it is a remote installed model, I would be surprised if the engine had 15 hours on it.

The problem:
The engine will idle sweet, but once you put a load on the engine (pushing the boat at 2.5 - 3 mph) the alarm sounds and the RPM's slow down like it is supposed to do at alarm. I have flushed the engine real good, all oil changes are up to date, changed out the thermostat, changed out the impeller. I have taken it to a certified Suzuki shop and there are no error codes or faults, but that darn alarm still comes on. Has anybody run across this frustrating problem? I have not taken it back to the Suzuki shop because they didn't listen to me the first time about the problem... they just call and say your boats ready.
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steveblarson@yahoo.com



Joined: 20 Oct 2021
Posts: 1
City/Region: Broomfield
State or Province: CO
PostPosted: Fri Oct 22, 2021 6:46 pm    Post subject: Long Shot Reply with quote

bschell, I don't have that engine, but have had similar problems. I would suspect three things.
1- The water pump is not operating properly and its overheating. You say you have replaced the impeller so maybe not this? check for a good stream of water coming out of the engine to be sure.
2- Engine is not getting enough fuel. Its getting enough to Idle but not enough under load. Check filters or look for any obstruction that may be preventing proper flow.
3- Air filter, for the same reasons as # 2

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Steve Larson
Currently Hurricane Deck Boat
Seeking C-dory
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hardee



Joined: 30 Oct 2006
Posts: 12176
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
PostPosted: Fri Oct 22, 2021 11:10 pm    Post subject: Reply with quote

2018 with 15 hours on it in 3 years. I might also suspect the fuel. If it is a carbed engine, what has been done during off season with the fuel/tank. Emptied and dried -- tank, and carb, or left full with fuel stabilizer mixed in, or just left with a fuel sitting in it from year to year?

Harvey
SleepyC Moon


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Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep.
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bschell



Joined: 05 Jan 2008
Posts: 56
City/Region: tustin
State or Province: CA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Photos: bschell 2003 22 Cuiser
PostPosted: Sat Oct 23, 2021 10:49 am    Post subject: Reply with quote

It's a fuel injected 2 cylinder engine, I think I will pull the fuel injectors out and clean them. Never done this before... but thanks to you tube I should be able to accomplish the task. If this works? I guess there is no code or fault for dirty injectors. I remember the old days when you could fix anything on your outboard with a flat head screwdriver... Now, you need a team of mechanics a Cat scan machine, AQMD standing by with Hazard suits on!
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DayBreak



Joined: 16 Jul 2017
Posts: 561
City/Region: Monmouth, Or.
State or Province: OR
C-Dory Year: 2018
C-Dory Model: 23 Venture
Vessel Name: DayBreak
Photos: DayBreak
PostPosted: Sat Oct 23, 2021 4:33 pm    Post subject: Reply with quote

Sounds like a low oil pressure or temperature warning to protect the motor. How long is the shaft? Is it a 20 inch shaft motor and is it submerged in the water enough to cover the cavitation plate while underway?
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Gary F
DayBreak, 23 Venture, 2018 - present
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NORO LIM



Joined: 24 Apr 2008
Posts: 809
City/Region: Olympia
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: NORO LIM (sold 12/12/14)
Photos: NORO LIM
PostPosted: Sat Oct 23, 2021 5:52 pm    Post subject: Reply with quote

DayBreak wrote:
Sounds like a low oil pressure or temperature warning to protect the motor. How long is the shaft? Is it a 20 inch shaft motor and is it submerged in the water enough to cover the cavitation plate while underway?


The OP indicates the motor is a DF9.9BTX2, which I believe is the extra long 25 inch shaft. Otherwise, you might suspect the intake is not sufficiently submerged when the kicker is pushing the boat. That would not seem to be the case here. (Unless the motor is mounted unusually high for some reason, like wanting to make sure it tilts enough to prevent it from dragging when the boat is under way with the main engine.)

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Bill, Formerly on NORO LIM
2001 CD 16, 2001-2006
2006 CC 23, 2006-2014
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bschell



Joined: 05 Jan 2008
Posts: 56
City/Region: tustin
State or Province: CA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Photos: bschell 2003 22 Cuiser
PostPosted: Sat Oct 23, 2021 10:12 pm    Post subject: Reply with quote

Bill you are correct, it is a 25" shaft. There is plenty of lower pick-up in the water... something is getting by the computer scan and not showing a code?
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