Just Will Not Start

[MoneyPit2005]

Hi A am posting about a Johnson 2001 135 Ocean runner which I ran all day on sunday it was not idling at low rpms very well later on in the day and then just died had to be towed in . Brought it home and took plugs out and replaced again second pair of new ones and tried to start again just will not kick over is the carbon build up that bad where it just won't kick over or is there a fuse or wire that I can't get at that is not giving any juice passage between powerpack starter from plugs I just can't figure this one out where is the problem steming from any suggestions would be greatly appreciated

 

[R.Johnson]

Re: Just Will Not Start

Are you saying the engine won't start, or it won't crank over?

 

[MoneyPit2005]

Re: Just Will Not Start

Hi it cranks over but will not start battery is brand new and motor only has 100 hrs on it I am puzzled

 

[umblecumbuz]

Re: Just Will Not Start

Should really do a systematic part by part check, but I had this last week.<br /><br />Turned out that when I ran the fuel low (usually top up tank before it gets to the bottom) I pulled some water into the fuel lines from the base of the tank.<br /><br />I was sat over the stern going through everything for half an hour before I tasted the 'fuel' in the line and realised it was water. Purged the line and away she went.<br /><br />Needless to say, I serviced the whole lot once I got back to shore.<br /><br />Just a thought.

 

[JB]

Re: Just Will Not Start

Try "Outboard wont start" in the Engine FAQs, MoneyPit.<br /><br />Let us know what you find.<br /><br />Good luck.

 

[MoneyPit2005]

Re: Just Will Not Start

Hi I spoke with a marine mechanic and he said if your compression is fine then we have a eletrical issue which was caused while trying to start motor while waiting for a tow he said could be a coil or the powerpack I am going through everything to make sure I am recieving enough spark to crank over the motor if not I think I will have to replace either one he also mention that there is probally carbon built up on the rings which explains why the plugs fouled

 

[Walker]

Re: Just Will Not Start

Your mechanic left out a bunch of stuff. You need to do a spark test before you decide its an electrical problem.

 

[MoneyPit2005]

Re: Just Will Not Start

what else did he leave out ?

 

[Walker]

Re: Just Will Not Start

He left out "all" the fuel issues. How does he know it doesn't have any spark. Did you or he do a spark test. Electrical (ignition) parts can get real expensive, especially if you don't need them.

 

[MoneyPit2005]

Re: Just Will Not Start

I spent last night putting in 4 new spark plugs replacing the brand new ones I put in sunday. The motor ran all day and then at slow speed it did not want to keep running had to apply the throttle roughly to 1500rpms. When I stopped and went to start back is when it would not turn over at all I tried starting the motor 45 minutes last night in my driveway so I guess what I am asking is if its Fuel related am I just clogging plugs and Not turning over. And if its electrical its either the Coil or the Power Pack went on sunday . I checked fuel filter that was fine and went through tthe motor from top to bottom completly the wires where all connected the only other thing I can think of is there is a kill swicth somewhere that has tuned the motor off????

 

[Silvertip]

Re: Just Will Not Start

You still haven't answered the question "do you have spark". You keep confusing the terms "turning over and cranking" with "not starting or firing". If the starter is not spinning the engine that's "not cranking". If the engine cranks but won't start, thats "not firing". Unless you use a spark tester you can't tell if the plugs are firing. Were the plugs wet when you removed them? If they were, you probably have an electrical problem. If not, its probably a fuel problem. Yes --There is a kill switch (the lanyard on the control box).

 

[MoneyPit2005]

Re: Just Will Not Start

Ok first things First what do you consider a wet plug the plugs had some moisture on them so yes they where wet I suppose So where talking electircal we have to be becuase there is know way that motor with 100 hrs on it thats run perfect for the last 3 yrs all the sudden is not starting becuse of the fuel . I had a 115 johnson before this similar had to replace the powerpack I think they go on the Johnsons ......

 

[Chinewalker]

Re: Just Will Not Start

MoneyPit,<br /> Regardless of whether the plugs are "wet" or not, you may still have spark. You really need to check for spark. And no, powerpacks are not necessarily prone to "going bad" on Johnsons.<br /> And yes, it is perfectly possible that you've got a fuel issue "all of a sudden". Bad gas, water, a glob of varnish, etc. can all cause issues.<br /> Do some tests before you start replacing parts. Localize the issue and you may find it's a simple fix...<br /><br />- Scott

 

[MoneyPit2005]

Re: Just Will Not Start

Hey Scott what Kind of test would you preform how do I get it started ,I guess is my question at this point hypothetically if I have spark but will not turn over ????

 

[MoneyPit2005]

Re: Just Will Not Start

Originally posted by JB:<br /> Try "Outboard wont start" in the Engine FAQs, MoneyPit.<br /><br />Let us know what you find.<br /><br />Good luck.

 

[Walker]

Re: Just Will Not Start

I guess is my question at this point hypothetically if I have spark but will not turn over ????

Okay, if you have spark, and its sparking at the right time, then you need 2 other things for it to run. Compression and fuel/air mixture.

 

[dajohnson53]

Re: Just Will Not Start

Originally posted by MoneyPit2005:<br /> Hey Scott what Kind of test would you preform how do I get it started ,I guess is my question at this point hypothetically if I have spark but will not turn over ????

It sounds like engine is turning over- the starter spins the engine? It sounds to me like it's not firing or firing poorly. Let us know because we need to know if it's a starter/battery/switch type problem or a problem in the engine itself.<br /><br />Check the spark with a spark tester. It's very simple, and essential before you go to trouble shooting the more complicated things in the ignition system and fuel system. Do a search (spark tester, spark test, etc.) on this and the other outboard repair forums and you'll get plenty of info on what that is and how to do it. I recently did it with no prior experience. <br />Let us know what you come up with.

 

[Silvertip]

Re: Just Will Not Start

We are 16 posts into this problem and still don't know whether or not the engine has spark on each cylinder. You will not get this engine started until you start actual troubleshooting. Do you, or do you not have spark? Until you see spark at each cylinder, you are only guessing. If you don't have spark there are specific things to check. If you do have spark there are other things to check. Help us help you.

 

[BoatBuoy]

Re: Just Will Not Start

Cheap,homemade spark tester (works good). Plug wires are connected to threaded studs, large clip is connected to shiny bolt on engine block, when cranked, spark should be observed jumping from end of threaded rod to aluminum strap.<br />

 

[noelm]

Re: Just Will Not Start

yep have to agree with "upinsmoke" if you do not know what it is that is preventing starting, you MUST isolate what it isn't, so check the spark like the experts are asking you to do! no use pulling stuff apart and guessing unless some basic troubleshooting is carried out first.