See full version: Suzuki df 90 water flush thread size
after water goes through relief valve .. it should be going through an area where they maybe a cover plate on port side of engine.
carefully remove cover plate and make sure there is no corrision and hole to upper engine chamber is not blocked
Art here
I have the 175 Th 150/175 are basically the same engine
140 might be configured a little differently
But I would inspect the water pressure relief valve
The have been a number of posts where debris has kept this valve open not allowing full pressure to the head
Even with the air pressure you mentioned you might try a small wire up the pee hose
My hose comes out of the cylinder block on the starboard side
can be a blockage in anyone of 3 places that are easy to check
thermostat.. besides looking for some blockage.. check to be sure it is operating correctly
water pressure relief valve.. make sure somethings small have not been
sucked up and blocked open
I posted a thread on overheating at idle
Do an advanced search and see if any of the info will help
Art
This filter is designed for easy installation in all applications. It has a see through removable bowl for easy viewing of fuel condition and a drain valve for water and other contaminants. Due to the high flow rate capabilities of this filter system, a special large diameter thread is used. Use only Genuine Suzuki replacement filters which have the correct thread size.
Applicable to all models, Recommended 150 hp and up. here
SUZUKI/RACOR OUTBOARD FUEL WATER SEPERATOR ASSEMBLY 99105-20005-ASY
We offer New Suzuki Outboard Parts and Accessories. Water Pumps, Oil Filters, Fuel Filters, Spark Plugs, Zincs,Cables, Controls, Lower Units, Power heads, Starter,Gauges, Props, Gaskets, Gasket Sets. [links]
The T-H Marine Quick Flush Outboard flush Kit provides a quick and easy way to flush any outboard equipped with a flushing port. Use the Quick Flush to flush salt or sand from your boat's outboard. Simply replace the outboard's flushing port plug with the Quick Flush slide valve. The quick connect attaches to your hose, allowing you to easily snap the hose on when you're ready to flush your engine. These kits include everything you need to take the hassle out of flushing your outboard.
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So off we went, the boat seemed to run fine at running rpm, but again rough and stalling at idle. Fortunately we were fishing for Halibut on a day with very little wind or drift so we could just shut the motor down and take 45 minute drifts then get it running and repeat. This worked for most of the day and we were even able to get a fish on the boat (11.5 lbs) which got us 5th place out of 29 boats unfortunately only the top 4 got cash back (top spot won $4k). Towards the end of the day we started stalling more frequently then the alarm came on which for newer motors it gives you a flashing gauge that will have a sequence to it (which tells you what is wrong). Of course we were out on the water and had no clue what a 3-2 sequence meant so we limped in in to the tournament weigh in and figured we would need to search the internet to find out what our issue was.
The internet yielded lots of threads on Suzuki 140s with the 3-2 flasher and it didn't look really good for us. Apparently the exhaust had been breached inside the cowling which in turn flips out your oxogen sensor causing your motor to run like heck. Once you took the cowling off the escaping exhaust would just flow out into the air unrestricted and the motor would run fine again (which is the sure test to tell if this is your problem). more
I figured now that the boat is fixed I will try to explain (with pictures) what exactly happened and how it was fixed. The Saturday after Thanksgiving was the Halibut tournament (in San Diego) which was the first time I had used the boat in a while which is usually when these things happened. That morning as we lined up for the start the motor was running kind of rough and after a while it started stalling on us. I was able to keep the thing running by just keeping it in gear which was really fun when they were trying to line up all the boats for a group shot.
Instead of adding on to the old thread I figured i would begin a new one as it is 2012 and tagging onto 5 year old threads is so 2011. Okay for those of you familiar with the 3-2 warning alarm for the Suzuki 90-115-140 which is brought about by an exhaust leak into the cowling caused by corrosion on the steel plug/aluminum housing on the engine holder on the port side of the motor (right above the flush port), this the story.