[TheBayDrifter]

Engine just cranks, I think I'm getting fuel tried taking out plug with wire attached and tried to see a spark while cranking engine.Cant see any spark,would the spark be hard to see during the day? (What can cause no spark?) I'm going to try tonight, If anybody has any knowledge about outboards I would greatly appreciate any advice. The engine is a 120 Force by mercury marine (1996) 2 stroke. THANKS IN ADVANCE

 

[canyonfvr]

you should be able to see spark during the day.Make sure the plug tip is touching engine block when your looking for spark.And yes it will be easier to see at night.

 

[TheBayDrifter]

THANKS, CANYONFVR DO YOU HAVE ANY IDEAS ON WHAT IT COULD BE WAS RUNNING GREAT STALLED AT THE DOCK COMING IN (I GOT LUCKY)

 

[canyonfvr]

i dont know about outboards but if its got no spark and it died all of a sudden check and see if there is a fuse for the ignition system

 

[TheBayDrifter]

the top plug and lower plug fire the two in the middle dont so i switched wires same thing so i switched wires on the coil side and got spark to the middle plugs I think the packs are bad where the other end of wire go's I guess. Im deff getting gas in the carb

This post edited by TheBayDrifter 08:16 PM 05/22/2008

 

[TheBayDrifter]

Thats what im thinking thanks Ken and Canyon

This post edited by TheBayDrifter 08:26 PM 05/22/2008

 

[hdcycles]

Switch the power packs and see if the problem follows to the other plugs. If so theres your problem. Pretty sure your sup. to replace the pack's in pairs. My buddy had the same problem and we only replaced the one and its still running strong.

 

[MACKS]

I don't know if this applies to your engine but some do not run on all cylinders at start up or low idle.

 

[Bigkeepers]

It sounds to me like you have the problem isolated. The packs are likely the problem. You need to get yourself a manual or find the information on what the resistance is supposed to be in those coil packs. You can then test the packs with a multimeter. If they fail that test then you can replace the packs. CDI type ignition is relatively easy to diagnose in most cases. The screwdriver trick is a good way to test the coils but you can buy a spark tester at an auto parts store which is safer and easier to use.

Two stroke outboards like yours and mine ('87 Yami) are basically real easy to figure out. They need compression, spark, fuel and timing to run properly. Find a Seloc manual for your engine and get a few basic diagnostic tools (compression gauge, spark checker, multimeter) and you can do pretty much any minor to moderate repair on the powerhead.

 

[TheBayDrifter]

Thanks guys, I hope i can get the coil packs tomorrow.
Are they pricey ??

 

[Bigkeepers]

Coil packs should not be too expensive falling somewhere in the $10-20 per pack range. Let us know how you make out.

 

[hdcycles]

If your talking 2 wires are getting no spark your talking about a power pack being dead not the individual coils. there not that cheap.