Tips to un-flood outboard?

[Steve_Bentley]

Just bought a recon. Mariner 30 which ran for 2 hours on Sunday as sweet as a packet of Smarties. Wanted to flush-out the sea-water on Sunday evening and it wouldn't even cough. Same again Monday eve. so checked for a spark and also the plugs were wet. Figure it must be 'flooded' then, but what's the quickest way of 'un-flooding' it? Would have thought a days rest and many pulls with the choke out (and in) would have cleared it? Also thought any tips would be useful to know if I'm re-starting it on the water and it's flooded again. Is it the carb or the engine that's flooded?

Any tips gratefully received! Thanks. Steve.

 

[tcm]

disconnect the fuel pipe, and pul and pul. Shouldn't need a whole day of rest. When it coughs and "goes" you can reconnect the fuel. Shouldn't need a whole day of rest. To fire up be4 it floods but after having tried with closed throttle a few times, try opening the choke (for normal running) and pull starter with a heap of throttle. For greater expertise on engine starting, it helps if you have spent several man-years trying to start 2-stroke jap motorbikes and/or 4-stroke british bikes and have been lashed on the leg by a too-advanced kick start at least once. Also, you'll never start it if you are female, it seems.

 

[Col]

Firstly, why did it flood? Did you leave fuel tap on? have you got correct fuel / oil mix (if not pre-mix)?
Too much oil will foul the plugs !
To clear, remove plugs, crank engine, or pull starter to expel excess fuel. Clean and dry plugs with cloth.Replace plugs, try to start with max throttle & no choke.If it starts, then dies, you can then try with a little choke as per a normal start.

I find that when I have finished with engine it is best to run engine till it stops, with fuel tap off, this will prevent fuel leaking from carbs into engine when engine layed on its side for storage.

http://www.arweb.co.uk/argallery/boaters?&page=2

 

[Steve_Bentley]

I think your last point may have been the cause- it was laying on it's (correct) side for a while before it went on a stand so fuel may have gone from the carb to the engine. I had stopped the engine on the kill switch rather than the fuel as I'd heard it's best to leave a coating of fuel/oil on the cylinder walls. If it's going to cause hard work each time I'll leave that for the winter!

I'll try all the suggestions and hopefully won't have shoulders like a baboon's by the weekend!

 

[slipway ste]

Hi,just had a simmilar situation when setting off with my tender with a mariner5 two stroke,having stored the outboard on its side in the back of the car,it started,i pushed off,clunk into forward it died and and would not start for 1 hr pulling,plug out etc as above,in the end I called it a day pulled the tender up the slipway,and in doing this pulled the outbard up to its top position,almost horizontall and noticed at this angle fuel dripping from air intake,mmm I thought that may have dried it out,put it back in the water and hey presto started 2nd pull,and ran for the rest of the day,so it may be a usefull trick when flooded to extreme to literally tip it right back to drain the fuel out of the crankcase,when out at sea it may save the day for others? From now on im going to run the engine with the tap off untill it stops as mentioned in earlier posts,unless I am storing it for the winter.