Going ashore at South Percy in the RIB (dingy). Capsised by the ubiquitous, rougue wave!!
Anyhow, the downside is that the o/b , Yamaha 8C , was well dunked.
Back aboard, with oars ( like the "Energiser Bunny!!" according to my mate.) Have been able to remove all sand, thoro' wash with fresh water, passed a lot of oily fuel thro' the system and all seems to turn over correctly.
However, it won't fire. The plugs are only showing a weak spark, more like a shock when touched.
Anybody suggest what to look for next? The book says " see Yamaha Dealer " but that is a couple of weeks away.
Have you tried a squirt of Aerostart down the intake? It could be there is still a bit moisture lurking somewhere which is diverting some of your elecktrickery to ground. If you can get it running (even roughly) on Aerostart it may warm up enough to dry it out or shake it loose. Another suggestion is to use a hair dryer if available and play that around any areas where ignition voltage may be present.
Another trick is to rub lead pencil over the plugs electrode and anode, this will magnify the size of the spark.
None of any of this is worth a squirt if none of those things are on board.
Spark and fuel, that's all it needs.
Spark: a thorough wash with fresh water, then disassemble all the ignition bits you can get at (especially the high-tension side), dry as best you can, then spray with WD40 etc and reassemble.
Fuel: drain the carburettor and check that it's refilling with 100% fuel.
If the outboard was running when it went under, you might have more serious problems due to water being fairly incompressible 
. But if this is the case it probably wouldn't even turn over now.
Thank you for the info. Guys ! I do have WD40, hairdryer and lead in my pencil. I'll try the ideas tomorrow and keep you'se advised.
Hi Bob, you could start here:
www.marineengine.com/boat-forum/showthread.php?382275-I-ve-done-the-unthinkable-motor-submerged!&highlight=submerged+yamaha
At the end of that thread, there are links to other "submerged" problems.
Its a great site for any mechanical questions / answers.
Select to expand quotebadinfluence said..
Start You B....d - I'm referring to the product.
Same as Aerostart, a somewhat volatile ether mixture.
G'day those sailors who offerer good advice. The blxxdy thing would not start for me and I was obliged to visit a Yamaha dealer. The problems were many-mainly sand in the carbie and in the reed valves,besides the power generator under the flywheel.
With my relative inexperience, it was probably a good thing that it didn't start as sand could then have entered the crankcase and bearings.Cheers, Bob
