Originally Posted by lucky_strike
mine blew out in colorado a couple months ago. i also broke the first i put in. its a little bitch. put a second one in and it was seeping so i said f it and brought it to the dealer to reapair. they also replaced some o ring by the sparkplug the said was leaking. i dunno. i carry an extra one with me now.
Probably the donut that seals the spark plug tunnel on the OHV cover.