Noticed my 2002 was puffing grey blue smoke when cracking the throttle,much worse cold than warm engine wise. Also had someone follow me on the trail and he said it puffed smoke when I whacked it good and hard up the trails. So its burning some oil but so far not that I noticed on the dip stick, maybe not too bad yet.
But I want to tackle it, any common causes for these bikes? I am thinking being an air cooled motor worn rings are probably the cause. I can run a compression check, but just looking to hear from others who may have had the same issue.
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2007 BMW R1200RT
2002 Honda XR400r