spark plug replacement Q

Information and questions on GL1500 Goldwings (1988-2000)
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Posts: 13
Joined: Fri Apr 15, 2011 8:40 am
Location: Stony Brook, New York
Motorcycle: 1993 GL1500

spark plug replacement Q

Postby child_of_fire » Sat Apr 16, 2011 8:21 am

new '93 gl1500 owner, i have 8,000 miles on my spark plugs and the bike runs perfect. any idea if and when i should replace these?

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Joined: Tue Mar 09, 2010 8:35 pm
Location: Edmonton, AB Canada
Motorcycle: 2000 GL1500SE
2004 Kawasaki KLR 650
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1980 Honda CBX - sold :-(
1981 Honda CBX - sold :-(

Re: spark plug replacement Q

Postby cbx4evr » Sat Apr 16, 2011 10:30 am

If it ain't broke, don't fix it.

Generally speaking we probably replace spark plugs a lot sooner than we need to. The manual indicates to change them every 8000 miles, which coincidentally is the same service interval as replacing the oil and oil filter. So who is replacing plugs with every oil change? I don't know what Honda is thinking with those intervals.

Personally I can see no reason for that frequency. Plugs should be good for three times that. Like oil, todays engines and fuels do not put the same kind of stress on plugs as engines of the past.
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

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