Hey guys, I've been lurking around reading up on all of the fantastic knowledge everyone has given, you guys are awesome! So here's my dilemma. I bought a 2002 Yamaha blaster a few weeks back, ran great, started first kick even cold. First thing I always due in a used bike that has unknown history is change the oil, which I did with yamalube 4. After that, the bike took a out 5 kicks to start and the used oil that I drained had lots of metal shavings stuck to the magnetic drain bolt. After riding another week, it got harder and harder to start. So I popped the plug off, inspected and replaced, then took a compression test and it's around 89 psi which I know is low so now I'm going to attempt to rebuild the top end. One strange thing is there is gas leaking from the front of the bike from a hose thats attached to the right side top end of crank case. Other strange thing is why did it run worse after the oil change. My question, and ease go easy on me lol, is do you all think given these conditions that all I will need is a top end replacement? I'm new to this and I don't want to go chasing my tail, just want to feel the wind in my hair and the speed tears in my eyes. Thank you all so very much for any help!