New Plugs... WOW
07-30-2012 | 11:32 AM
#1
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Joined: May 2006
Posts: 1,628
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From: Huntsville, AL
New Plugs... WOW
My boat had 168 hours on it when i bought it a few month back.
of those hours, 76 where at idle. Boat ran good, but the throttle where always a little off. No big deal.
Then I noticed the more use to the boat I got, the more it started getting rougher when getting on plane, then it cleaned up? we are talking VERY little roughness but enough I noticed it.
After some research on here, I was told 496's are very rich at idle, and can be hard on plugs.
Put a new set of plugs AC Delco Platinum, gaped at .60.. and WOW
the boat was SO much more responsive when hitting the throttles, and they care now even when working them...
crazy spending 120 bucks for spark plugs, but well worth the 1.5 hours it took to install them.
of those hours, 76 where at idle. Boat ran good, but the throttle where always a little off. No big deal.
Then I noticed the more use to the boat I got, the more it started getting rougher when getting on plane, then it cleaned up? we are talking VERY little roughness but enough I noticed it.
After some research on here, I was told 496's are very rich at idle, and can be hard on plugs.
Put a new set of plugs AC Delco Platinum, gaped at .60.. and WOW
the boat was SO much more responsive when hitting the throttles, and they care now even when working them...
crazy spending 120 bucks for spark plugs, but well worth the 1.5 hours it took to install them.
Last edited by mittens; 07-30-2012 at 03:59 PM.
07-30-2012 | 01:08 PM
#2
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Joined: Aug 2004
Posts: 2,295
Likes: 1
From: Baton Rouge La.
My boat had 168 hours on it when i bought it a few month back.
of those hours, 76 where at idle. Doat ran good, but the throttle where always a little off. No big deal.
Then I noticed the more use to it a got it started getting ruffer when getting on plane then cleaned up? where are talking VERY little ruffness but enough I noticed it.
After some reaserce on here, I was told 496's are very rich at idle, and can be hard on plugs.
Put a new set of plugs AC Delco Platniums, gapped at .60.. and WOW
the boat was SO much more responsive when hitting the throttels, and theyare now eaven when working them...
crazy spending 120 bucks for sprark plugs, but well worth the 1.5 hours it took to install them.
of those hours, 76 where at idle. Doat ran good, but the throttle where always a little off. No big deal.
Then I noticed the more use to it a got it started getting ruffer when getting on plane then cleaned up? where are talking VERY little ruffness but enough I noticed it.
After some reaserce on here, I was told 496's are very rich at idle, and can be hard on plugs.
Put a new set of plugs AC Delco Platniums, gapped at .60.. and WOW
the boat was SO much more responsive when hitting the throttels, and theyare now eaven when working them...
crazy spending 120 bucks for sprark plugs, but well worth the 1.5 hours it took to install them.
07-30-2012 | 04:02 PM
#4
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Joined: Aug 2004
Posts: 187
Likes: 2
From: San Francisco,CA
Glad to hear you got good results.
I just replaced mine over the weekend on my 525EFI. I used the stock NGK's and didn't notice much. It sounds better though. I was hoping for that elusive extra 5MPH.
I just replaced mine over the weekend on my 525EFI. I used the stock NGK's and didn't notice much. It sounds better though. I was hoping for that elusive extra 5MPH.
07-30-2012 | 06:02 PM
#6
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Joined: Aug 2004
Posts: 2,295
Likes: 1
From: Baton Rouge La.
Were hanging in there My friend. Moms not doing well right now. Chemo's not working. An I cracked My leg 3 weeks ago. Rochelle My 35 year old room mate will be having rush surgery tomorrow. 10 syst on Her Ovaries. Hey it's tough getting old. I'm keeping My head up an looking forward to things getting better. Artie 
