Hay smiley,guess you go riding alot by yourself, cause any YZ426,or KTM 520,400 is not only alot faster but better componets as well, the Yamaha, can hang with 600 street bkes. and the carb on the crf is just a cvk type, not injection Like My Yamaha Sorry Smiley.The kaw klx300r clder head is comparable to your bke.