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  1. #1
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    Educate me on J Plug vs Gap Less

    so glad I found this awesome forum! My first post and been reading for days and learning so much. I've read some where that one plug vs the other is better depending on where you run the most. Like those racing or often WOT vs those who are fisherman and spend most hours during no wake zones or trolling and cruising 1/2 3/4 throttle. Any input would be greatly appreciated as I love to learn. BTW I have a 1996ish 200HP Merc EFI.

  2. #2
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    J plug can b read for tuning when building a motor and u gotta figure out jetting , gapless cant read , both run fine

  3. Likes KIRCHNER liked this post
  4. #3
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    Thanks for quick reply. I should have mentioned Im the fisherman and not racer and also here in Southern Cummifornia fishing mostly saltwater offshore so temps are generally in the 60-80 degrees.

  5. #4
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    What motor do you have?
    1990 Shadow bass boat w/ 2.4 200 Merc. Totally resto'd boat and love it!

  6. #5
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    [QUOTE=rgsauger;3219270]What motor do you have?[/QUOTE

    1996 Merc 200HP EFI, and want to mention just dropped CC reeds and blocks. But now chasing a motor issue with I cant get to idle for long periods of time. Have an appointment in a week at a shop who I researched and learned they have a mech who is claimed to be Mercury Certified and been working on Mercs for over 15 years.... That's why I ask about plugs so when I get a chance to talk to the shop, i Know what I am talking about.
    Last edited by jbl_91762; 07-10-2020 at 11:55 PM.

  7. #6
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    Sounds like u got another issue. Prob tps off after reed job or sumthin

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