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FishingJoe

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Posts: 56
Reply with quote  #1 
I've got a general question for the Tech's who always give great advice here on the forum.  So, took my boat in for some general service, change the filters, replace the water impeller, grease it up and give it a good going over.  The engine has about 90 hours on it, I only get to use it a few times a month for fishing, run to a spot.... drift the flats then go to another spot repeat etc...etc...

Anyway, the tech at the Platinum Evinrude dealer, where I purchased the motor said they replaced the plugs because they looked pretty fouled and very dirty.  When I said i was surprised they needed that because the ending only had 90 hours on it he said they pull the plugs as a part of general maintenence to look them over and changed them bemuses they needed it.  I run "marine" gas, which talking to the marina where the boat is stored is regular gas with a additive to like Marine Stabli.  I also add my own Marine Stabil just to make sure. I never read that too much Marine Stabil could cause plug fouling.  the engine runs great, never had any misses, only one over temp when I first got it do to poor water pump that was replaced under warranty.  Other than that.... runs like a champ.

So, is there something else I should be thinking about?  Forget adding my own Marine Stabilizer? When I'm running the boat, it is in very shallow water in th eLower Laguna Madre, and sometimes when taking off in the shallows, we will defiantly kick up a little mud/sand before getting on plane.  The water pump and intakes are all good.  Thanks for your thoughts.  Joe

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Joe
Boat: Ibis by New Water Boats
Motor: E200LHOAGF S/N 05495152
Past time: Fishing the Laguna Madre in South Padre TX
PhilH12

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Posts: 3,503
Reply with quote  #2 
The plugs will normally look black, especially with some low speed running before shutting down.  I can't tell you how many times I changed plugs - thinking something was "wrong".  (Nothing!)

If you do a lot of low speed running, try adding some EV Carbon Guard to the fuel and see if that helps.

EDIT:  Where are your WOT rpm's?  Make sure they're good too before buying additives, etc. to "cover" a problem elsewhere.

Phil

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Always check the Easy Stuff First!
20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
FishingJoe

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Posts: 56
Reply with quote  #3 
Thanks Phil. WOT are around 5400.  I asked for a printout from th EMM, but I'm guessing most of my running will be right around the 3500 RPM range.  They told me they saved the plugs for me to look at so I'll see what they look like when I pick up the boat.  I'll also look into the additive.  Thanks for the recommendation.
__________________
Joe
Boat: Ibis by New Water Boats
Motor: E200LHOAGF S/N 05495152
Past time: Fishing the Laguna Madre in South Padre TX
alana

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Posts: 546
Reply with quote  #4 
Take the old plugs home clean with a cloth, not a wire brush and keep as spares
FishingJoe

Registered:
Posts: 56
Reply with quote  #5 
Thanks, I was thinking of doing that.  I was going to use some gasoline as a solvent to clean them... figured it should not hurt them.  
__________________
Joe
Boat: Ibis by New Water Boats
Motor: E200LHOAGF S/N 05495152
Past time: Fishing the Laguna Madre in South Padre TX
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