eduardo kang
Cadet
- Joined
- Dec 4, 2004
- Messages
- 6
I just did a search and some reading about the s.l.o.w. system; so far I don't think this is my problem for a couple of reasons.. 1) I'm able to run the engine at an RPM higher than 2500 2) Immediately after the motor began to miss I pulled the cowl and checked all of the plug connections and don't recall the engine being unusually hot, of course I could be wrong..<br />After checking everything I immediately turned for the dock not wanting to venture any further with the way the engine was running. As soon as I got the boat on the trailor I pulled the plugs to visually inspect them and noticed one plug was oily and wet (I think it was the lower starboard plug). Assuming it was a simple case of fouled spark plugs I ran to the store, swapped the plugs, and headed out again for a test run. The boat ran great for a little while (10 minutes), then the miss started again.<br />I took the boat back to my house and opened the OMC sevice manual so I could check the resistance on the coils to make sure they were within spec (just had to do this with my 'yota 4Runner friday). According to the manual (page 3-14 fig 1-3), the resistance between the primary terminal on the coil and the engine ground should be 0.1 ohms +/- 0.5 ohms, all checked good @ 0.1 ohms. The resistance between the primary lead on the coils and the spark plug terminal should be 275 ohms +/- 50 ohms, checked good @ around 300 ohms for both connections on both coils. The plug wires were all around 500 ohms, which, according to the manual is ok..<br />All that being said, I have a couple of questions. My first question is will the resistance of the coils change once the motor warms up? is that when I should check them? <br />Does this sound like I a powerpack problem? Unfortunately I only have and fluke digital VOM and nothing more sophisticated.<br />Any help or suggestions are appreciated and I apologize for the long post..<br /><br />Thanks,<br />-e