So the rm250 I sold to my friend this spring is beginning to make a slight growling noise in the bottom end and is starting to smoke a bit more than it used to, so we are going to do crank bearings and seals. It has at least 80 hours on the crank. We did an EG 265 on it about 60 hours ago and it already has a Hot Rod in it. I was wondering if we can just replace the rod when we do the crank bearings and lower end inspection, or if it will need an entire crank. I have never replaced a rod before, but he does have the factory service manual I gave him with the bike. Also anything else to watch for while doing this? Thanks for any advice.