2000 johnson 6hp 2stroke help

[xjma]

Just picked up a used but not for a bunch of years Johnson 6hp. Eager to see how she runs I tossed some relatively fresh 40:1 premix with high quality non-marine(not tc-w3, torco gp-7) 2 stroke oil. I know this should run it a tad lean but it was just for a test run in a cooler in the back yard. J6rssm is the model # g 04841438 sn 02/2000. Person said it hasn't been run since before 2005 or so?

Anyways there was gas in the carb under pressure and also no gas inntank but some in the line-hard bulb so I bled both out. Put it in a cooler and fired her up. She fired and idled high. Ran for a min or two and then no more...tough pulling starter on rickety sawhorse. Lots of black oil left in the cooler of water. It fired a tad the first few pulls before starting and then no sputters just oil. Also noticed leak around bulb with clamps missing on both sides of the bulb.

I know it probably needs serious carb cleaning.....just wanted a baseline. Plugs were brand new ngk. Haven't looked at them but probably a good start. What confuses me is all the black oil in the cooler...running rich, no? Should I not even think about it until I clean the carb out real well??

Thank in advance

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

Also, it is lacking the safety key thing so I just used a wire to keep it out.....may have loosened up after running a few minutes?

 

[Daviet]

Re: 2000 johnson 6hp 2stroke help

First, put the correct champion plugs in it.
Repair the leaks at the primer bulb, and any other fuel leaks.
Get the proper fuel/oil ratio with the proper TC-W3 oil, 50:1.
You are correct, you will probably have to overhaul the carb to get it running properly.
The oil in the cooler is probably from the winterizing of the engine.

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

First, put the correct champion plugs in it.
Repair the leaks at the primer bulb, and any other fuel leaks.
Get the proper fuel/oil ratio with the proper TC-W3 oil, 50:1.
You are correct, you will probably have to overhaul the carb to get it running properly.
The oil in the cooler is probably from the winterizing of the engine.

Is it picky with champions?? I generally run ngk in my dirt bikes and wheeler's, etc and am a big ngk fan but do run champion in all three of my jeeps. I willnget some tc-w3 premix good stuff and mix that up, I only have less than a gallon in there now.

Now that you say it that black stuff definitely looks like it could be seafoam or something similar, thanx!

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

will champions be better than brand new NGKs?

 

[Haffiman]

Re: 2000 johnson 6hp 2stroke help

You may run NGK, but not any ones with 'R' in the spec!! If unlucky, it might kill the power pack.

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

Haffiman I'll have to check the number. If they gave me plugs that hurt the motor ill be pissed!! What could it do to power pack?? Fired and ran a little today but then would not keep running after a few starts. My guess is the fuel pump and carb needing cleaning and new seals. Leaky gas around motor. Thing sat for a long time. Any other reason this would happen?? I meant to see if pumping the bulb would keep it running for longer but by the time I remembered to do that I couldn't start it anymore...!!!

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

Anyone have any insight for running initially but then no go?? Do you think that my diagnosis of new fuel pump and carb cleaning could be the issue?? Trying to get this thing running on a tight budget, as always!!

Also, sorry for my previous crappy post on the kindle fire, it kept putting letters in where they shouldn't be and meshing words together, fixed it!!

Why are the R resistor plugs bad for outboards?? I thought they'd be better for if you were running any electronics, no??

 

[Daviet]

Re: 2000 johnson 6hp 2stroke help

You can check the fuel pump operation by removing the fuel line at the carb, pull the engine over and notice the fuel coming out of the line, should be steady pulses.
If the engine sat that long you are probably going to have to pull the carb off and clean it properly.
Champion plugs are the recomended plugs for your engine, I would use them. (QL86C)

 

[Haffiman]

Re: 2000 johnson 6hp 2stroke help

Why are the R resistor plugs bad for outboards?? I thought they'd be better for if you were running any electronics, no??

There are two main plugs to be used for reducing interference, mainly depending on the design of the ignition system.
You have the resistor plugs and suppressor plugs.
The OMC/BPR systems are designed mainly for the suppressor plugs. Using resistor in these systems may lead to sparks jumping where you do not want them to jump!!

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

Thanx Daviet and Haffiman for the responses!! Not yet that familiar with outboards, luckily so far I would say? I checked and they're NGK R series plugs BR6HS so I guess these are a no-go! Got the motor without plugs, but there was a dust-covered sticky-note on the head with I believe that champion plug # on it, brought it to auto parts store and the NGK was what they had. I'll go get champions! Luckily the motor has not run for more than probably a minute max, total between a few different starts.

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

So I have had this motor running with the incorrect R series NGKs, however, I can't get it running again for some reason on fresh good gas....strange. It ran after I popped off the float bowl and freed up the stuck needle in the seat. I haven't taken anything else on the carb apart, I want to wait until the carb rebuild kit comes in before I really tear into it. The thing ran for a good ten minutes though....but now nothing. I also ordered the correct champion plugs online but i'm impatient and wanted to grab some non resistor plugs locally. Nobody around here carries champion.

I told the guy at Advance that I needed a QL86C equivalent and NOT a resistor style, so he came up with autolite 4093 by getting a cross reference to the non R NGK plug B6HS, which they didn't have in stock. Now I go to autolite's page and they recommend 2665, called back and they don't have that one in stock!! Guess I'll have to wait, suck.

My question is, would the different spark plug be causing the motor to not start?? Compression feels fine, it is getting spark and there is oil floating in the 55 gallon drum I have the motor in so I'd guess it is getting fuel. Even starting fluid (which I know isn't great for a 2 stroke) isn't doing anything.....carb must be really messed, or something else?

 

[Daviet]

Re: 2000 johnson 6hp 2stroke help

It wount start by squirting fuel into the carb? Check spark, it needs to jump a 7/16" air gap and be bright blue. Incorrect plugs can cause an engine not to start.

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

nope, not even by squirting into the carb with the throttle open!! Crazy. It ran for ten minutes right after I popped the carb back on after getting the float needle unstuck.

I guess it must be the plugs?? I can't wait for them to get here, hopefully on saturday. Current plugs have a bright blue spark, just checked by pulling plug and laying it against the other plug to ground it. Holding the plug wire hurts.

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

ordered plugs online last tuesday....won't be here until this thursday, aarrghh!!

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

Been reading through posts here, maybe getting paranoid. The motor is painted black and the bottom half of it, especially on exhaust side, is wet from some oil. It ran for a while then hasn't run since, could I have a leaky crank seal on the bottom?? It's a 2000, is it too new to worry about crank seals?? Seems to have good compression by my thumb compression gauge. I did come back to it after sitting for a day the other day and when I pulled the rope it was hard to pull, like the exhaust was plugged, but a few pulls and it was back to normal. can 2strokes vapor lock?

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

OK, got the plugs, still a no-go, even with starter fluid. I have compression (although not tested with gauge), I have fuel in the cylinders, and I have spark...I guess. Touching the plug wires gives a shock. I've tested the spark just by popping the plug out, resting it so that it touches the head and pulling the cord, I get a nice white/blue spark, looks plenty strong. I squirt starter fluid into the cylinder, not even a sputter!!

So I guess I have a spark problem?? Not enough spark?? Where do I begin?? I did have this motor running, had it idling for 10 minutes or so with NGK 'R' plugs thanks to the fellas at autozone. Went to rev it up to WOT and it died about 3/4 of the way up or so and hasn't sputtered since. I have many multi-meters (father in law is an electrician, so he gives me different ones from time to time). Do I need a peak volt meter? I probably have one I would guess?? Can anyone direct me to a thread explaining how to diagnose the ignition system?? Best place to start and what I may have Fed up by running the R plugs?? Thanx so much!!

 

[AlTn]

Re: 2000 johnson 6hp 2stroke help

try cdielectronics.com/troubleshooting

 

[Sandor27]

Re: 2000 johnson 6hp 2stroke help

I can't help with your diagnosis, but for the kill switch try looking under the tiller arm. My 2000 9.9 has an extra "key" stuck on a boss there from the factory. At least with a proper "key" you can rule out the switch as the problem. The kill switch lanyard is available at almost any boating store, including WalMart.

Good luck.

 

[xjma]

Re: 2000 johnson 6hp 2stroke help

try cdielectronics.com/troubleshooting

Thanx, I appreciate the help!!

I can't help with your diagnosis, but for the kill switch try looking under the tiller arm. My 2000 9.9 has an extra "key" stuck on a boss there from the factory. At least with a proper "key" you can rule out the switch as the problem. The kill switch lanyard is available at almost any boating store, including WalMart.

Good luck.

Good tip, thanx I'll check. I'm not too worried about it at the moment as with my method I've removed the wire and note no spark at all, rig it up with the wire and I get spark....although a real key would never hurt! Thanx.