merc 300x spark plugs
04-26-2006, 05:53 PM
#11
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Location: eden nc
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Re: merc 300x spark plugs
same motor i run ngk in my 90 hp . i have neaver had a differnt brand in it love thim . also run thim in my yz 80 whin i raced it maney years ago . 
05-12-2006, 09:11 AM
#12
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Re: merc 300x spark plugs
according to a Merc Mechanic they yse the champions because there the only plug that doesnt allow any interference with the ignition system, all the others they tried have issues
05-12-2006, 09:30 AM
#13
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Re: merc 300x spark plugs
Originally Posted by berns29scarab
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 ?
It has been several years but i think the mechanics and manual said 24-26 and the powerhead said 32-33. Not sure how much has changed but that is my 2 cents.
BTW- you are welcome to post egg beater questions here, I even own two of them but don't tell anyone.
05-12-2006, 09:44 AM
#17
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Re: merc 300x spark plugs
Originally Posted by berns29scarab
love my egg beaters as long as there not pukin lowers.....grrrrrrrrr
05-12-2006, 09:46 AM
#18
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Re: merc 300x spark plugs
20" sportsmasters w 1.62's...cracked i lower just above carrier housing welded it, grenaded lower few weeks later...bought a new 1 have about 50-60 hrs on it and so far so good
05-12-2006, 09:48 AM
#19
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Re: merc 300x spark plugs
Originally Posted by OSOAdmin
I had a pair the first year they came out. I had stalling problems at idle around the dock. Changed plugs several times with no success. Finally ignored the mechanics and the manual and gapped them to what it called for on the decal on the powerhead, problem solved.
It has been several years but i think the mechanics and manual said 24-26 and the powerhead said 32-33. Not sure how much has changed but that is my 2 cents.
BTW- you are welcome to post egg beater questions here, I even own two of them but don't tell anyone.
It has been several years but i think the mechanics and manual said 24-26 and the powerhead said 32-33. Not sure how much has changed but that is my 2 cents.
BTW- you are welcome to post egg beater questions here, I even own two of them but don't tell anyone.
Last edited by berns29scarab; 05-12-2006 at 09:48 AM. Reason: spelling
05-12-2006, 09:57 AM
#20
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Re: merc 300x spark plugs
Originally Posted by berns29scarab
20" sportsmasters w 1.62's...cracked i lower just above carrier housing welded it, grenaded lower few weeks later...bought a new 1 have about 50-60 hrs on it and so far so good
Wish they had a beefier unit for outboards as the powerheads just keep going and going and...
Nice boat Bern
