Approaching 100 hrs on my OPTI, new plugs?

[KHedquist]

Well what has been some of your experiences on OPTIS? I am approaching the 100 hr mark which they say I should change plugs, I have not pulled any out yet to view, it seems to run great.

And no I am not going to buy a ETEC so dont go there

[AllenW]

"""""
And no I am not going to buy a ETEC so don't go there
""""""""

I'd never do that, I might tell to buy a Yammie though....:stirthepot::muahaha:


Actually if your gonna go though the trouble to look at them, ya might as well replace them, unless there $50 a pop.
Pull them and stick them in the toolbox in case you have trouble with one of the new ones later.

Al

[JDP]

Moreyes,

Check NAPA stores for plug price.
I have purchased them for about $13 plus tax a piece that last couple of times (Robert St., West St. Paul store)
I have changed them on my Opti.
I have a 150HP, I believe you have a big block but probably priced similarly.

JDP

[GMC Jon]

I do believe that is what is in my owners manual for my 115 Opti- every 100 hrs. I also got mine from NAPA for about the same amount as previously posted.

[KHedquist]

Thanks. you are funny guy, I missed that brand

[REW]

I would check a couple and take a look at them.
If they are a nice light tan, with no signs of burning, oil soaked, or burned up electrode - I would likely let them be.

However, if you feel uneasy about them at all for any reason - change them out.
Take care
REW

Remember, in todays automotive world - you are looking at 100,000 miles between plug changes. That would equate to about 1,000 hours on your outboard.

Take care
REW

[KHedquist]

Yep called NAPA allot cheaper, still yikes:shocked:

[KHedquist]

Allen may a catfish swim up your tailpipe:fart:



"""""
And no I am not going to buy a ETEC so don't go there
""""""""

I'd never do that, I might tell to buy a Yammie though....:stirthepot::muahaha:


Actually if your gonna go though the trouble to look at them, ya might as well replace them, unless there $50 a pop.
Pull them and stick them in the toolbox in case you have trouble with one of the new ones later.

Al

[dutchboy]

I would not change them until the motor was running rough. Changed mine in my Opti after 300 hours and it hasn't ran the same (good) since. If you change them really watch the "gapping " on the plugs. The Opti's are super sensitive.

[Opti-Mist]

When I got my opti 3 years ago I was going to buy a spare set of plugs. The dealer said "What for? You'll probably never need them." It still runs flawlessly.

[grey wolf unlogged]

I have pulled my plugs a few times on 225 Opti to winterize. The 6th plug is a huge bugger. If I had not watched the tech do it once, I would still be trying. Get yourself a piece of gas line to twist the last plug in. I have just over 200 hours and just replaced mine.

Also try a place I think it is called sparkplug.com or something like that, that is the cheapest place I found Opti plugs.

[TomP.]

Mercury does recommend changing plugs after the first 100 hours. Then after that only if needed. When gapping the NGK`s have to be so careful not to put pressure on the center electrode. Seen Optis run worse after changing plugs and this seems to be the reason for it. Center electrode gets bent.