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What sparkplugs for a 525 EFI?

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Old 06-10-2006, 12:53 AM
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Default What sparkplugs for a 525 EFI?

I want to change them this week while I am waiting for my headers to come back. Thanks Mike
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Old 06-10-2006, 05:17 AM
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Default Re: What sparkplugs for a 525 EFI?

Ngk BPR6ES
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Old 06-10-2006, 06:11 AM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by GOODT
Ngk BPR6ES
Thanks Mike
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Old 06-10-2006, 10:46 AM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by GOODT
Ngk BPR6ES
I found the manual. What is the difference between that plug and this one that the manual recommends?

Ngk BR9ECS
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Old 06-10-2006, 11:30 AM
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Default Re: What sparkplugs for a 525 EFI?

according to the service manual for 525 efi That is the plug, it should also say on the top of the mtr
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Old 06-10-2006, 11:44 AM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by GOODT
according to the service manual for 525 efi That is the plug, it should also say on the top of the mtr
That is weird. The book that came with the boat from Mercury lists the other one. If that is the one that you recommend I will track those down. Thanks Mike
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Old 06-10-2006, 11:59 AM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by DRIVEN1
That is weird. The book that came with the boat from Mercury lists the other one. If that is the one that you recommend I will track those down. Thanks Mike
check the plate on top of the mtr and pull one thats in there to make sure,

but thats out of the merc 525Efi service manual
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Old 06-11-2006, 12:27 PM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by GOODT
check the plate on top of the mtr and pull one thats in there to make sure,

but thats out of the merc 525Efi service manual
I pulled them out today and they were the Ngk BPR6ES. Thanks Mike
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Old 06-12-2006, 08:26 AM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by DRIVEN1
I pulled them out today and they were the Ngk BPR6ES. Thanks Mike

its Joe, your welcome
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Old 06-12-2006, 07:34 PM
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Default Re: What sparkplugs for a 525 EFI?

Originally Posted by GOODT
its Joe, your welcome
Thanks Joe,
Thanks Mike was me saying good bye. My name is Mike
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