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Author Topic:   New spark plugs for Optimax

JoeyP posted 04-21-2003 01:44 PM ET (US)
I understand there is a new replacement spark plug for the opti's. Its the NGK Iridium Platinum. Does anybody know what the new gap size is for the 200 opti's on these plugs?
DaddysGirl posted 04-21-2003 08:23 PM ET (US)
Should be the same gap as the original plugs. Were they $14 a piece like to orig plugs are?
Lars Simonsen posted 04-21-2003 10:02 PM ET (US)
I just got them for $10 a piece at Advance Auto. It's still an arm and a leg, but better that $14 a piece.
John from Madison CT posted 04-22-2003 07:22 AM ET (US)
My spark plugs for the Yamaha 250hp EFI are $1.39/each at Advanced Auto.
bsmotril posted 04-22-2003 10:23 AM ET (US)
But the Yamaha EFI does not run in a stratified charge lean burn mode like the optis do. When you look at the fuel cost savings over a season's time, it is easier to justify the $51.66 you save in spark plugs for a 6 cylinder motor. Those platinum plugs will last an easy 200 hrs in the 135 Opti's whereas a regular tip plug will last about 50.
BillS
JoeyP posted 04-22-2003 08:28 PM ET (US)
I checked price at dealer today it was $14.50 a plug for the new Iradium . The platinum plug was $28.99 a plug. That was insane. West Marine retails the platinum plug for $19.99 each.
John from Madison CT posted 04-22-2003 08:33 PM ET (US)
BSMotril: I get a solid 3-3.25 mpg in my 22' Whaler with the Yammie EFI. I have not heard better with those running Optimax's. In fact, if it is better, it sure can't be by much.
FWIW, I ran the same set of plugs after 200 hours last year, and the engine ran without a hiccup.
John
bsmotril posted 04-23-2003 09:45 AM ET (US)
John,
What HP and prop pitch are you running?

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Author	Topic: New spark plugs for Optimax
JoeyP	posted 04-21-2003 01:44 PM ET (US) I understand there is a new replacement spark plug for the opti's. Its the NGK Iridium Platinum. Does anybody know what the new gap size is for the 200 opti's on these plugs?
DaddysGirl	posted 04-21-2003 08:23 PM ET (US) Should be the same gap as the original plugs. Were they $14 a piece like to orig plugs are?
Lars Simonsen	posted 04-21-2003 10:02 PM ET (US) I just got them for $10 a piece at Advance Auto. It's still an arm and a leg, but better that $14 a piece.
John from Madison CT	posted 04-22-2003 07:22 AM ET (US) My spark plugs for the Yamaha 250hp EFI are $1.39/each at Advanced Auto.
bsmotril	posted 04-22-2003 10:23 AM ET (US) But the Yamaha EFI does not run in a stratified charge lean burn mode like the optis do. When you look at the fuel cost savings over a season's time, it is easier to justify the $51.66 you save in spark plugs for a 6 cylinder motor. Those platinum plugs will last an easy 200 hrs in the 135 Opti's whereas a regular tip plug will last about 50. BillS
JoeyP	posted 04-22-2003 08:28 PM ET (US) I checked price at dealer today it was $14.50 a plug for the new Iradium . The platinum plug was $28.99 a plug. That was insane. West Marine retails the platinum plug for $19.99 each.
John from Madison CT	posted 04-22-2003 08:33 PM ET (US) BSMotril: I get a solid 3-3.25 mpg in my 22' Whaler with the Yammie EFI. I have not heard better with those running Optimax's. In fact, if it is better, it sure can't be by much. FWIW, I ran the same set of plugs after 200 hours last year, and the engine ran without a hiccup. John
bsmotril	posted 04-23-2003 09:45 AM ET (US) John, What HP and prop pitch are you running?