Thread: Sparkplugs
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Old 05-21-2015, 01:35 PM   #7
kz1000st   kz1000st is offline
 
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Join Date: Oct 2008
Location: Hyde Park, NY
Posts: 1,058
To me it's just a peace of mind thing. Platinum and Iridium plugs will last longer but they won't magically give you more horsepower or better throttle response. A good engine doesn't care. I kept a set of plugs in one of my motorcycles for over 20,000 miles. I knew it was time for a change when the gas mileage started to drop off.
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2008 Eagle Milano 150- 9,679 miles
2009 Honda Rebel 250- 10,434 miles
2009 CF Moto Fashion- 16,023 miles
2009 MC-114 50cc Cub Clone- 4,317 miles
twowheeler.yolasite.com/

That's 30,049 China Scootin miles and Counting.
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