1999 Johnson 200HP

BDA_Guy

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Jun 10, 2002
Messages
3
I had engine troubles on a trip out yesterday and would like to get everybody's thoughts given that it may be days/weeks before a mechanic gets out to my boat. At less than 1 year, I'm a newbie to boating and, admittedly, probably made a couple of rookie mistakes that may have lead to the engine troubles. The events of the last 36 hours are as follows:<br /><br />1. Took out boat and filled up with gas.<br /><br />2. After departing the gas station and travelling along for about 10 minutes, I noticed that I forgot to put the gas cap back on. I slowed down and put the gas cap back.<br /><br />3. 10 minutes later, I put down anchor near some reefs. Given that there are some shallow areas near by, I decide to bring the engine out of the water.<br /><br />4. About 30 minutes later, I decide to move. Not thinking, I start the engine without putting it back in the water. It's on for only a couple of seconds before I turn the engine off and lower it back into the water. I restart the engine but it only runs for about 5 seconds before cutting out. I can't get it to restart and subsequently require a tow back to my mooring ||Ay carumbah!||. <br /><br />5. The next day ||today||, I prepped the engine for a test. The engine started but emitted some fairly thick smoke. Having let the engine run for no more than 10 seconds, I turned it off. Some wispy smoke continued to flow from the exhaust. I become convinced that I need to call in a mechanic before running the engine again.<br /><br />6. Finally, in checking the oil, I notice that the tank is fairly low. This is odd to me since I filled it up quite a bit a month ago and I don't believe that I have used the engine enough over the last month ||approx 12 hours|| to warrant that much oil usage.<br /><br />I am interested in hearing what people's thoughts are as to the cause of the engine troubles and how much damage may have potentially been done. Any comments will be much appreciated.<br /><br />Thanks.
 

Down South

Petty Officer 1st Class
Joined
Aug 7, 2001
Messages
333
Re: 1999 Johnson 200HP

Heck, I guess I'll give this a shot. So far I don't really see any problem with your motor other than it not starting out on the lake. Did you make sure the primer bulb was firm? Did you try the choke? <br />Now for the smoke. It's normal for a 2 stroke to smoke. There is oil mixed in the gas that causes this. If you are cranking it without the muffs on it you can cause damage to the water pump.<br />Now tell us what brand and year model motor you have. Did the motor run OK before you had the problem? I see you filled with gas. Did you add the proper amount of 2 cycle oil? <br />The gas cap thing is neither here nor there. Starting the motor for a few seconds out of the water isn't either.<br />Reply to this post and give us some more information.<br />The oil tank needs to be checked & filled every time you top off with fuel. Yup, it will use some.<br /><br />Good luck :)
 

Down South

Petty Officer 1st Class
Joined
Aug 7, 2001
Messages
333
Re: 1999 Johnson 200HP

Hey BDA_Guy Never mind bout the type and year model. I see it now.....Nice motor.....<br /> :)
 

Mumblerone

Petty Officer 1st Class
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May 12, 2002
Messages
344
Re: 1999 Johnson 200HP

You may have flooded it when you tried to restart (causing smoke). If the motor starts now I would check to see if water is coming out the back, if it is I'd use it. The gas cap off, the starting for a few seconds out of water, and the smoke should not be a problem. I have twin 1996 Evinrude Ocean Pros that have carbs...should not be a problem. Check it out! ;)
 

BDA_Guy

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Jun 10, 2002
Messages
3
Re: 1999 Johnson 200HP

At this stage, I may be a little bit more cautious than I need to be. However, I would prefer it this way than forking over a ton on engine maintenance or, worse yet, engine replacement. I'm still learning as to what the engine can take.<br /><br />Prior to the incident, there was never an issue with startup and I expected a certain amount of smoke on a cold start-up. However, this last time, the smoke was thicker and whiter than usual. From the comments, I take it that this may be a normal result of a restart after having flooded the engine. My original concern also arose from the fact that I could always see a blue tinge to the smoke as the oil burned off which I didn't see this time around. ||This may have something to do with the low oil level.||<br /><br />I'll get the oil topped up and try it again. Thanks for the comments.
 

bassndude

Cadet
Joined
Jun 9, 2002
Messages
11
Re: 1999 Johnson 200HP

Hey BDA_Guy<br /><br />I run a '98 225 Johnson 2-Stroke on a 20' Stratos. So oil and fuel consumption should be similar.<br /><br />If you have a remote oil tank like mine, then 12 hours of running is an awful long time between oil fillups.<br /><br />I have noticed that my oil reservoir will contain enough oil (2 gal) for two full gas tanks (56 gal). So be careful, always top off your oil when you come back in from a trip if you get a chance.<br /><br />Do a quick calculation. Oil mixture should be 50:1, if you know the size of your gas tank and oil reservoir then you can estimate or measure the amount of oil that should be used with the amount of gas used. This will tell you if you have an obvious oil delivery problem. THIS CAN POTENTIALLY SAVE YOU A POWERHEAD! $4K - $8K. <br /><br />Check your oil when you fill up and knowing the amount of gas you used you know how much oil you should have used.<br /><br />For me - full tank of gas is half an oil reservoir. 1/2 tank of gas = 1/4 tank of oil. etc.<br /><br />If I'm not getting oil then my reservoir will have more oil than it should.<br /><br />Also, as stated by others, starting the motor out of water for a few seconds - no biggie. <br /><br />Blue smoke at start up - common. Especially when you start the motor out of the water (with muffs of course). Since the exhaust goes thru the hub of the prop, when it is underwater you don't see all of the blue smoke. When it is in your driveway you see everything and it looks like a lot more than you would think is normal.<br /><br />You should see it the first time you start it up in your driveway after you fog your engine! :eek: <br /><br />As for not starting, check the primer bulb. If it was primed, then it may have been flooded, if it wasn't you didn't get fuel. Happens a lot to me - now it is one of the first things I check. If you ever get flooded, let the engine sit there for a bit before you try again or you may just kill the battery.<br /><br />Frank
 

BDA_Guy

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Joined
Jun 10, 2002
Messages
3
Re: 1999 Johnson 200HP

Frank,<br /><br />The 12 hour estimate may be somewhat overstated as I think that I included some low-running/idle time in there. However, this is definitely a wake-up call to check my oil every fill-up. I'm obviously still getting caught a little off-guard as to how much oil 2-stroke engines suck up. <br /><br />Once again, the comments are much appreciated.<br /><br /> :)
 
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