Suzuki 2.2 2-Stroke Won't Start

[CaptainBob]

Suzuki 2.2 2-Stroke Won\'t Start

Suzuki 2.2 2-Stroke. Wind picked up earlier and stupidly I thought my new method of tying the tender to my tub would solve the problem of flipping the thing over... but I was wrong.

It got half submerged in slightly salty water.

Started fine straight after, but I thought I'd run it for a while to make sure any ingressed water was expelled.

Then it stopped.

Started again - ran for less long this time - then stopped.

Kept fiddling - and now it very rarely has a quick fire and that's it.

I took the covers off and removed the spark plug and gave it a clean. It looks brand spanking under there. Plug brand new looking, but a little blacking on the hot end so I sanded it a little. Re-assembled. Same thing.

I'm onboard at the moment so can't leave my yacht until this is sorted.

Any ideas?

THANKS!!!

 

[VicS]

Re: Suzuki 2.2 2-Stroke Won\'t Start

Fuel system may have water in it. I guess its an internal tank but if the fuel tap was shut and the tank vent closed hopefully the fuel in the tank is OK. Otherwise empty tank make sure all water is removed and refill with fresh.

Water may be in carb. Remove, drain bowl and ensure all water is removed. remove and blow through all jets and passages. Hope a complete strip down is not necessary.

Rinse salt water from all visible parts of the ignition system. Would be favourite to remove flywheel rinse and dry everything under neath but it should all be sealed so hope that's OK. You'll need a puller anyway I expect.

Spray electrics with WD40 but concentrate on the HT side of coils and leads to plugs.

Spin engine over plenty of times to expel any water from crankcase and cylinder with the plug removed. Since you have had it running that's probably effectively done.

Check/dry the stop switch. Internally if possible.

Check for spark by holding plug against the engine somewhere and spinning it over. Until/ unless you can get a good spark there's no hope.

With a water free carb, good fuel and a decent spark it'll go .(fingers and other appendages crossed)

Don't forget to take the oars with you though!

 

[Dipper]

Re: Suzuki 2.2 2-Stroke Won\'t Start

I had identical symptoms on the same engine for a year (not as a result of a dunking though) and it turned out to be the plug even though it was nearly new. Another forumite also had these symptoms and, if I remember correctly, he cured it by temporarily fitting a replacement seating washer off another plug. If you don't have a new plug or washer, it might be worth cleaning up the seating area of the plug.

I'm at home cleaning out a drain and you are stuck on a boat. Want to swap? /forums/images/graemlins/grin.gif

 

[Dipper]

Re: Suzuki 2.2 2-Stroke Won\'t Start

Here are extracts from the earlier thread. The engine is showing the same signs as yours.

“I have a suzuki 2.2 2-stroke outboard which has started to give me some problems. Basically the thing starts on the first pull and runs fine but will only do so on tickover for around 1 minute and on the throttle about 30 seconds. After this time the engine stalls. After leaving the stalled engine to sit for around 5 seconds, it will then start again on the first pull.”

“I've ordered a couple of new sparkplugs. I have noticed that the washer is crushed on the current one I have and there is slight burning on one side.”

“Well I never would have though it would have been the spark plug in a million years. I took a new crush washer from another plug and put it onto the existing one. The engine started on the first pull and has continued to run without issue under tick over and full throttle in the test tank.”

 

[CaptainBob]

Re: Suzuki 2.2 2-Stroke Won\'t Start

Cheers for the replies!

I carried on twiddling after I posted and all of a sudden a considerable amount of fuel trickled out of the area of the prop - and some black oily fluid sputtered out also. (I have it on the bracked on back of boat, not in water, I know this isn't great but tide and wind are going some and dinghy threatened to flip with me and engine in it).

Couple of pulls after that and it fired up no problem and seemed to be happy with some rev changes. Didn't run it long.

Maybe I flooded it with fuel initially after the dunking?

What's a "puller" that I might need Vic?

As it now seems OK, do I still need to remove the carb etc?

 

[VicS]

Re: Suzuki 2.2 2-Stroke Won\'t Start

I don't know anything about your Suzuki but i would expect the flywheel to be on a taper on the top ed of the crankshaft. If that's the case in order to pull it off you'll need a puller. Probably what is known as a "harmonic balance puller" rather than a three legged puller.


If the carb is easy to remove or if the bowl can be removed without taking the whole thing off I would feel inclined to make sure there is no water in the bowl. If its difficult I think I'd keep my fingers crossed.
Watch out for the float and the needle valve if you do.

BTW don't run the engine out of the water , at least not if its water cooled, or you will wreck the pump impeller. OK no probs for a few seconds while it is wet but not once it is dry.

 

[Dipper]

Re: Suzuki 2.2 2-Stroke Won\'t Start

I’m no expert but I would just run the engine for a while on your dinghy whilst it is tied alongside your boat before you set off for shore. Being a two stroke, I would have thought that the flow of fuel and oil through all the moving parts would be suitable ‘first aid’ in the short term. The black oily fluid was probably just exhaust residue which was washed off the inside of the system by the water.

I have had the carburettor bowl off mine when I was trying to sort out the spark plug problem and it is relatively easy so perhaps worth a go. The trouble is that Sod’s Law will apply and you will drop a screw down your cockpit drains or the gasket will rip!

From memory, the electronics are fairly well sealed but when you are ashore it may be worth removing the engine covers and rinsing any salty areas off with fresh water.

As a result of my earlier spark plug problem, I was advised by the Suzuki agent to always carry a spare plug. I would certainly change the one you currently have as it may have been affected by the immersion.

 

[CaptainBob]

Re: Suzuki 2.2 2-Stroke Won\'t Start

Cheers guys. Sun's out now so going to stay a while : )

 

[pappaecho]

Re: Suzuki 2.2 2-Stroke Won\'t Start

These little Suzuki 2 strokes are very fuel sensitive. If you unscrew the single screw at the base of the carb, this drains the float chamber. If you then open the fuel tap it will then flush the system. I find that "old fuel" results in a gelatinous mass collecting in the float chamber which then blocks the jet. It could just be your problem and that your recent swim has not been the cause. Two seasons ago my outboard stopped mid flow (Pompey Harbour ) for this reason, and so it only takes about 1 minutes to flush it out. It then starts first go. Good luck

 

[VicS]

Re: Suzuki 2.2 2-Stroke Won\'t Start

[ QUOTE ]
I find that "old fuel" results in a gelatinous mass collecting in the float chamber which then blocks the jet

[/ QUOTE ] A good reason for turning the fuel off and allowing the engine run until it it has used all the fuel in the carb. Not every time but when it is going to be more than a day or so before it is next used.

Ok there are valid reasons, perhaps, why you should not do this with large two strokes with multiple carbs but there's no problem with small ones .