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Shane Creekmore
Shane Creekmore, Marine Mechanic
Category: Boat
Satisfied Customers: 295
Experience:  I have over 20 years experience in the marine industry as a mechanic and powerhead tech at a major re-manufacturing company
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I have a 1993 Evinrude XP 200 horse power engine. Normally

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I have a 1993 Evinrude XP 200 horse power engine. Normally it runs great, but yesterday, it gave me problems. It would start just fine and idle fine. It would even run fine up to about 3200 rpm. At around 3200 to 3400 rpm it would start to skip badly. It would shake the whole engine like it was missing. The harder I pushed the throttle, the worse it got. Throttle down to less than 3400 and it would stop but still run rough. Throttle down to 3200 or less and it sounded fine. Never would get higher than 3500 rpm no matter how far you pushed the throttle.Thinking it might be power pack.
My name is XXXXX XXXXX I will help you with this. If you do not understand or need further clarification just let me know.
It sounds more like carburetor issues to me. If the power pack was causing a misfire it would happen at lower rpm's also. I would clean the carbs and pay close attention to the high speed jets. I am sending a link to the carb breakdown for your motor. The high speed jets are # XXXXX in the diagram. They are located directly behind the drain screw.
If you need any more help let me know.
Shane Creekmore and other Boat Specialists are ready to help you
Customer: replied 7 years ago.
Ok, I will try that first. My friend has a mercury and he had that problem (carb clogged) he said my problem sounded the same as his. So I will give it a try, especially after I priced the new power pack. I have another boat with an old 140 horse johnson, that a power pack went bad on. Ran fine but couldn't get any power out of it, but it never sounded like it was missing and shaking like this one is. Thanks for your advice. If I need more information how do I ask you?
If you need any more info just reply to this link.
Customer: replied 7 years ago.
Thanks Shane, by the way you said you were sending a link to the carborator breakdown. How do I get that? i know it will be helpful.
I am sorry I thought I sent it
Sorry for the delay. Had to pick up my kids. If you need anything else just reply to this link.
Customer: replied 7 years ago.
Got it, thanks. I will start looking at it when I get home.
Ok. Just let me know. I am sending this info request back to keep the question open.
Thanks for the feedback,
Customer: replied 7 years ago.
Hi Shane,
I got home last night and took off the cover to the carbs. All six carbs looked very clean. I took out each high speed jet, examined them and cleaned them. They were already very clean, but I cleaned them again. I replaced each one. I should mention that this engine was rebuilt when I got it about three years ago. I use the blue sta-bil everytime I fill up, without fail. I also replaced the fuel water seperator filter yesterday, mainly because I try to do this every year and I haven't done it yet this year.
Anyway, I put the hose on it after cleaning the jets. It started right up and ran fine at idle. I pushed the throttle slowly and it ran great all the way to 3000 rpm. I pushed it a little further and right around 3300 or so rpm it started missing again. It reminds me of the old cars when the timeing was off. Remember how you could turn a distributer cap and the engine would start bucking and sounding awful. Well this is the same thing. The engine starts sounding like its missing and jerks. The more gas you give it the worse it gets. Pull the throttle back to about 3100 to 3200 rpms and it starts running fine again.
Little more background on how this started. Took it to the lake Wednesday. Ran fine. Opened it up for a short period got on plain and ran like always. Then we putted around the lake at around 5 to 8 mph for about an hour looking at house along the shore. It was hot that day around 104 degrees. Water temp was 94 according to the GPS. After an hour, decided we wanted to get on down the lake and tried to open it up, thats when it started. Hasn't run right since, at least not above 3300 rpm. I thought it might be the tempeture sensor, so I disconected that and started it. Tried to go above 3300 rpm and it did the same thing. I am at a loss.
I noticed that the timing base has an arm that hits a stop. In other words as you push the throttle the timing base swivells around until it hits a stop that is adjustable. I thought maybe the stop had moved and the timeing was off. But after checking the stop, it is tightened down tight and doesn't move.
So what now?
Do you have access to a flywheel puller? That has a 35 amp charging system with magnets that are epoxied onto the inside lip of the flywheel. These are known to come loose and cause multiple problems.
Next with a ohms meter test the timer base resistance white wire to blue,green and purple readings should be about the same usually 1 to 2 M ohms if the readings are off reverse the leads and try again and see if it is corrected.
Next test the stator resistance you should read about 1000 ohms from brown to brown yellow and about 100 ohms from orange to orange black.
Let me know your results.
Customer: replied 7 years ago.
I have a small puller, but its not big enough to pull that flywheel. I can get one from a local auto store. They have a "borrow a tool" program that doesn't cost anything. I have gotten large pullers from then in the past. I know which magnets your talking about. I can see them when I look up under the flywheel at the stator. I will run the tests you suggested and get back to you. I am at the office right now so it will have to be later. Thanks, XXXXX XXXXX your help.
It's no problem. Just let me know when you get a chance.
Customer: replied 7 years ago.
Ok, I am at home now. I did the test you requested and here are the results
Timer Base
White to blue - 1.3
White to grean 1.26
White to purple 1.3
Also did the other side:
Black/white to blue 1.3
Black/white to green 1.3
Black/whit to purple 1.29

Brown to brown/yellow 853
Orange to orange/black 104.7

The brown to brown yellow was the only one that was low for what you said they should be. Suggestions?
You will have to replace your stator.Sometimes you can find a good used one on ebay for around $100.00 just be sure it has a guarantee. A new one is around $400.00. You can use part numbers. 584643 or 763779.
Customer: replied 7 years ago.
Hi Shane, sorry it took me so long to respond. I couldn't find a stator on ebay for my boat but I found one on Marine Parts Source for $242.50. I ordered it and it should be here before the weekend. I will replace it Saturday and see how she does. Thanks for your help!
No problem. Let me know.

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