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tmaxxmike

yz426f weak spark

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hi all,

i have a 426, i just started to figured out how to start the thing . bike runs good but all of a sudden i could not get it started so i pulled out the plug and saw that it was wet so i thought that my plug was fouled. i took that fouled plug to my other bike and connected the plug, held it to the head and cranked on it and it sparked right up . so then i hooked it back on the yz to check out the spark and if i had spark you could barely see it :thumbsup: . what could cause a weak spark? plug is new NGK CR8E

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