15hp evinrude 2 stroke

damagegt

Hello all

I picked up a 3.4m inflatable today with a 15hp evinrude.Now im a total notice to boats and outboards.I got it do some off-shore fishing.i bought it out today to try it out and the engine seemed to stop and start a lot.I put in 200ml of 2 stroke in with the fuel and fuel tank ball was pumped the choke was in and it was in gear and the kill switch was in.There was a small turnable knod on the trottle but i had no idea what it was.Would it help if Iknew what year and model it was?How would I find that out ?

Any help would be great guys/gals.

fergal.b

Hi, damagegt I think your engine should run on 50 - 1 fuel mix so for your 200ml of oil you should have 10 liters of fuel in your tank, also check your fuel tank for a small breather screw and make sure it's open.
See if you can find the engine number you can work out the year it is from that.
Some of the tillers had a idle speed knob for trolling, if you want to go at a certain speed you can dial it in with the knob and it would stay ticking over at that speed.

damagegt

Good morning fergal.i had the mix right so.I didn't have the small screw open on the fule tank at the start but i did after about 10 mins,would that make a difference ?I had the idel speed dialled in on half speed so that should have been ok ?

alexlyons

The vent should have been open from the start but if it was running the same before and after you opened it, then that's not the issue. The small knob on the throttle is almost certainly the throttle friction. So if its loose the throttle should go back to the lowest speed when its let go. If its tight, the throttle will stay the same when you let go.

Check the spark plug if you know how. If you're unsure when it last had a service, either do it yourself or get someone else to it.

damagegt

thanks for the help guys.I filled a wheelie bin with water and set it up.Increased the 2 stroke mix to 75.1 as the previous owner and suggested and it worked perfect first pull every time.All speeds,idle and reverse all ticked over perfect and didn't cut out once.Thanks again for the help.

fergal.b

It might be worth your while doing the impeller if you don't know when it was last done, they only cost a few € but your engine depends on it to pump water around it and when they fail your engine will overheat, also have a look at your gear oil to make sure it has no water in it.
Best of luck and happy fishing

damagegt

Thanks fergal.I was thinking of getting it serviced anyway.I could get who ever does it to walk through it with me just to be sure Im doing everything right.Well the short spin we had on it yesterday was great.Hope the summer lasts a bit longer

tin79

If its designed to run off 50:1 then running in on 75:1 is risking potential issues in the long term I would have thought.

Try to get the engine number and get some info. if you get the year and model nailed down try

www.readmanuals.com

Any chance you can get someone who knows a bit to show you the ropes? the last thing you want to do is have her go out at sea.

Oh also, in your first post did you mean "inshore" rather than "offshore"? I personally would be wary of going too far in an 11 foot inflatable.

damagegt

tin79 wrote: »

If its designed to run off 50:1 then running in on 75:1 is risking potential issues in the long term I would have thought.

Try to get the engine number and get some info. if you get the year and model nailed down try

www.readmanuals.com

Any chance you can get someone who knows a bit to show you the ropes? the last thing you want to do is have her go out at sea.

Oh also, in your first post did you mean "inshore" rather than "offshore"? I personally would be wary of going too far in an 11 foot inflatable.

Sorry inshore.I wont be going further then a km or 2 off shore if even.Well the side of the motor says 100:1 mix.I was told in other forms that they changed this to 50:1.I was trying to find a model number but I couldnt find anything apart from numbers on the internal parts and none of them match anything on the evinrude/johnson websites or other parts/manual sites.

tin79

If its says 100:1 then 75:1 would be ok. 50:1 might have been a bit rich and too much 2 stroke and could have been part of the problem. It might have oiled up your sparks etc.

Can you post a pic of the engine cover and i might be able to get a year for you.

damagegt

Would these help ?

tin79

Yes I showed them to a friend at work who has had a few evinrudes (sorry never had one myself). He reckons its an early to mid 80s model based on the decals and the shape of the cover. It looks in good shape.

If you are running 75:1 and still having cut out problems do a service but if thats still not solving it its potentially a carb issue. Take the engine out on the water and give it a good hard run and see how it goes.

As Fergal B said when I get a used engine i always replace the impeller as a first job no matter what (I was even planning to do it on a 2.3 honda I got last year until I remembered they are air cooled ). Its worth doing to have peace of mind.

The problem with running a richer mix of 2 stroke than the engine is made for is that it can lead to oily residues on your spark plugs. And if the engine is not run dry of fuel before going into storage the petrol that sits in the carbs will evaporate and the 2 stroke is left behind. Over time this builds up and can casue carbs problem and block the jets.

So if you are running 75:1 at the end of the day (or at the end of flushing) cut off the fuel supply and leave the engine stop itself due to fuel starvation so you wont have any fuel left in the carbs.

If you are using at sea get a set of flushing muffs and clean out with fresh water when you get home.

damagegt

When I increase the mix to 75.1 its starting first pull and i don't seem to be having any issues.Ill try get it out over the weekend to see can i give it a good run.I noticed some blue smoke when its revved ,would this be normal ?

fergal.b

"I love the smell of blue smoke in the morning"
Yep that's fine, if you can't find the tag with the engine number have a look on top of the engine there might be a disc like a frost bung with a number on it.

damagegt

fergal.b wrote: »

"I love the smell of blue smoke in the morning"
Yep that's fine, if you can't find the tag with the engine number have a look on top of the engine there might be a disc like a frost bung with a number on it.

Ill have another look there but I cant seem to find it !

tin79

Blue smoke is fine, the more 2 stroke you add the more smoke you will see but its not a problem in itself.

The two stroke oil only acts as a lubricant so I am not sure why you are seeing better running with a richer mixture. I would guess the engine just needed a run in and if you go back to 100:1 it might run well now.

damagegt

I got a chance to give this a run about and its working perfectly now but I'm finding a bit heavy for what Im looking for.I need some thing a handyer size like 6 or 7 hp.Would anyone have any idea how much this would be worth if I was going to try shift it on?

fergal.b

IF it's a short shaft have a look a few post down stylie is looking for one.

damagegt

Thats what I was thinking but I know nothing about them so i dont know what's a fair price to ask or be offered for it.

fergal.b

It's very hard to put a price on it without knowing the year, condition, service history and on newer engine's the hours on the engine also there is not a big market for short shafts but the people that are looking for them might pay that bit more.

damagegt

fergal.b wrote: »

It's very hard to put a price on it without knowing the year, condition, service history and on newer engine's the hours on the engine also there is not a big market for short shafts but the people that are looking for them might pay that bit more.

I just went out and found the tag with all the info so ill look that up and see what iv got.

damagegt

Sorry lads can anyone help me out with working out what I have

BE15BALC(or G)DE
1304879
http://www.maxrules.com/models/OMC_models.html
I cant for the life of me workout what I have.

nope I was wrong I have its an evinrude 15hp AC Lighting (Rope Start) 20" shaft 1986 model run

E 15 BA L CD E

fergal.b

20" is a long shaft, I am running a short shaft and it's only 15"

damagegt

Well your learn some thing new every day.Thanks for all the help again

breghall

use this if you need any info for parts like part number or to check for obsolete parts ... http://epc.brp.com/Index.aspx?lang=E&s1=e4b8b414-4188-4613-8617-625ac92c6c6a