Where to wrap Sendec Hour meter wire around, 04 Yz250F

[marcv125]

Hey guys i took Rich's advice and purchased a Sendec Hour meter. Its a nice piece but i have one question. Where do i wrap the hour meter wire around? There really isnt a Spark Plug Wire on my 04 yz250f, like i had on my 00yz125 anyways...... Any help would be appreciated...