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merc 300x spark plugs

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Old 10-12-2005, 10:13 AM
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Default merc 300x spark plugs

the application calls for champion QL77PP. i'm not a big champion fan. has anyone run other then the recommended plug and if so which ones ?
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Old 10-12-2005, 10:15 AM
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Default Re: merc 300x spark plugs

Come on Bern, you know we can only ask motor questions on Scream & Fly, now.
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Old 10-12-2005, 10:43 AM
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Default Re: merc 300x spark plugs

lol...i have faith in the OSO GODS !!
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Old 10-12-2005, 10:59 AM
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Default Re: merc 300x spark plugs

I'm running NGK's in mine and have all summer. Doesn't seem to load up in the no wake zones like the Champions used to. I'll have to find the number for you. Went with the iridium tipped too, and from what I understand, you really can't foul them out.
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Old 10-12-2005, 12:39 PM
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Default Re: merc 300x spark plugs

Yes!
More eggbeater questions

Im not a big Champion fan myself but I havent been able to find a cross reference for this plug. Id be interested to see what Jordy comes back with.
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Old 10-12-2005, 01:12 PM
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Default Re: merc 300x spark plugs

OK, I had to look around to find the receipt (easier than pulling the cover and shrouds off, but I've been running an NGK BR8HIX (iridium) plug all Summer and haven't had a single problem with them. I go them at sparkplugs.com for under $7.00 a piece. Put 60 something hours on the boat without a hiccup. Seemed to run better too from the first time I installed them and motored out of the no wake zone.
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Old 04-26-2006, 08:42 AM
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Default Re: merc 300x spark plugs

QL77PP doesnt show a cross reference anywhere...mine have 80 hours on them and lookie here
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Old 04-26-2006, 12:17 PM
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Default Re: merc 300x spark plugs

I was running champions too, since switched to NGK. go to www.sparkplugs.com Cross reference to the NGK's.
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Old 04-26-2006, 01:27 PM
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Default Re: merc 300x spark plugs

Quote:
Originally Posted by dreamboater
I was running champions too, since switched to NGK. go to www.sparkplugs.com Cross reference to the NGK's.
Thats where I buy my plugs. They dont list a cross reference and Ive yet to find anyplace or anyone that has an exact match.

What number NGK's are you guys running?
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Old 04-26-2006, 04:29 PM
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Default Re: merc 300x spark plugs

This is the NGK I am running BZ7HS-10. I did a search on screamandfly last august and this was what they recommended also. I am running 300 promax's, not sure how different that would be to the X's.
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