2007 DF200 Oil Light - Limp Mode

[Lostsoul58]

New here on the forum.

Have had a situation that scared me pretty good.
Cranked the boat when leaving to another fishing spot and the oil pressure light was flashing. Shut it down and checked oil level. All was good. 4 hours since oil and filter change. Fresh 10w40 West Marine Synthetic and a NAPA-Wix **** filter. Cranked it up again and light was still flashing but no noise etc.
1/4 mile to marina so I idled back in but the engine was in limp mode. After arriving I remembered the oil service reminder would flash the light so I reset the light and it went out. Engine no longer in limp mode. Left the marina and ran at a normal pace up to 5,000 rpm without a problem.
Seems the oil change reminder shouldn't cause the limp mode.
Bad oil pressure switch maybe??

Open to suggestions.
Thanks

[redlowrey]

If it was mine, I would remove the switch, connect up a gauge, check the pressure just for piece of mind, and replace the switch.

[Lostsoul58]

If it was mine, I would remove the switch, connect up a gauge, check the pressure just for piece of mind, and replace the switch.

Yes that is the best way to do this.
Any idea on oil pressure specs?
I assume its like an automotive engine with 25psi at idle minimum?

[ChrigelKarrer]

but no noise etc.

What do you intend with that, beeps or engine noise?
Was it the first time you used synthetic 10W40?
Are you sure that the blinking oil pressure light was not the oil change reminder light?
Chris

[Lostsoul58]

What do you intend with that, beeps or engine noise?
Was it the first time you used synthetic 10W40?
Are you sure that the blinking oil pressure light was not the oil change reminder light?
Chris

It was beeping but no engine knock or clatter. It's actually the first oil change since I've owned this boat. Previous owner had service done by dealer and I'm not sure what oil was used by them. I assume it could be the service reminder. Its odd it was in limp mode though.

[ChrigelKarrer]

No, the oil change reminder should not trigger the limp mode.
Why are you thinking that the engine was in limp mode when you idled back.
Chris

[Lostsoul58]

No, the oil change reminder should not trigger the limp mode.
Why are you thinking that the engine was in limp mode when you idled back.
Chris

Not well written. Because I tried to accelerate to get out of the traffic in the ICW and idle is all it would do. Replaced the oil pressure sensor today. Couldn't hit the water because of storms rolled in until after dark. Hopefully I can hit the water in the morning.
PS. I did crank and run it for about 20 minutes before the storm. No light. It will rev like it should at least in neutral.

[redlowrey]

Did you bother checking the pressure

[Lostsoul58]

Did you bother checking the pressure

No. My boat is in a marina 200 miles from where my tools are (home). Are Suzuki outboards known for oil pressure problems with just over 200 hrs of service? No sludge, no leaks, no blow by, and it runs so quiet that you have to look at the tach to see if it's running. I'm hanging my hat on a faulty oil pressure switch. A chain drive oil pump is either working or busted.

[Lostsoul58]

FWIW - The two issues that I posted originally were separate issues that happened at the same time.
Service reminder light (oil pressure) flashing and loss of power.
Re-set the light and it has stay off but the loss of power remains.
The fact that it always shows up after shutting the engine down (warm) and bogs to gain RPM on restart seems to randomly reoccur. Can back off throttle and it will idle and seems to clear up after 45 seconds or so. May go all day and not show up again. Similar to older info I've found about a vapor lock issue with Suzuki 4 strokes from a decade ago.
Thought I would change the fuel hoses and primer bulb along with the low pressure fuel filter assembly on the engine. I'll dump the VST unit and see what happens. If I have this right....a bad IAC motor causes more of an idle problem than the loss of power??
Are there decent primer bulbs without paying $100 for a branded Suzuki bulb or is that a must have bulb for my DF200?
Long post.
Thanks

[ChrigelKarrer]

a bad IAC motor causes more of an idle problem than the loss of power??

a bad IAC motor affect only ideling, you can't start the negine without putting in trottle mode and acellerate manualy

Are there decent primer bulbs without paying $100 for a branded Suzuki bulb

The original Suzuki primer bulb should be somewhere between 25-50$,
i use 25$ Moeller primer bulbs and they do the job and i belive that most of the non Suzuki Primer Bulbs are decent enough for your engine.

Chris

[Lostsoul58]

a bad IAC motor affect only ideling, you can't start the negine without putting in trottle mode and acellerate manualy


The original Suzuki primer bulb should be somewhere between 25-50$,
i use 25$ Moeller primer bulbs and they do the job and i belive that most of the non Suzuki Primer Bulbs are decent enough for your engine.

Chris

Great! Where can I order a Suzuki bulb for that price range? Thanks!

[artdf175]

Primer bulb? Question why you want to replace it ?
When you are experiencing this lack of power is the primer bulb collapsed?
If that is a symptom, then check the fuel tank breather
Critters often like to make homes in small places and can plug it up thight enough the engine starves for fuel
I didn't see ? If you had changed out your water/fuel separator
Limp mode question-- you say you idled back
It is my understanding the limp mode just restricts Rpm under 3,000
Art

[ChrigelKarrer]

Great! Where can I order a Suzuki bulb for that price range? Thanks!

Try to contact the sponsors here:

Outboard Specialities
International Marine

If the price is still over $, then just get a Yamaha bulb, they are great too.
There are Moeller or Attwood bulbs and they are around $ and they work fine as well.

Chris

[Lostsoul58]

Primer bulb? Question why you want to replace it ?
When you are experiencing this lack of power is the primer bulb collapsed?
If that is a symptom, then check the fuel tank breather
Critters often like to make homes in small places and can plug it up thight enough the engine starves for fuel
I didn't see ? If you had changed out your water/fuel separator
Limp mode question-- you say you idled back
It is my understanding the limp mode just restricts Rpm under 3,000
Art

I used the term idle. I was afraid to push it as normal with the oil reminder warning plus the loss of power happened together. Good tip on the vent. I took the fuel hose off at the low pressure filter after I returned. It had a lot of vapor/pressure built up. It actually made a sound like opening a pressurized soft drink. There either has to be a vent clogged as you suggest or an air leak on the suction side of fuel line (bulb?). I did change the water/fuel filter. No water in that so ok there. Stumped.