Hello All
I am getting back into riding after about 8 or 9 years. I rode trails from the time I was about 9 until I was about 25. I bought a 1982 RM125 for $400 (not the best trail bike I realize, but I wanted to find out if I was interested in riding again, cheaply). It was missing the brake assembly needed a few other parts. I ended up buying a brake assembly, rear wheel bearings, both sprockets, chain, and brake pads ($250 in parts). When I got the bike home, I did a quick compression test (cold) to see what I was dealing with. The motor tested 90psi, which seems low. It is also spitting out oil from the tailpipe. My mix is 30:1...apparently, opinions vary on the mix ratio as well. I suspect that I may have a crank seal leaking, but Im not sure. I put exactly 800ml of oil in the bike and I have ran about 2-3 hours since. I am going to drain the oil and measure it tonight to see if it has burned any. I consider myself mechanically inclined and have worked on motorcycles in the past. I think I can handle a top end rebuild, but I am not sure about splitting the cases. How big of a job is splitting the cases and putting in new seals? Should I just ride it until it blows up?
I bought a '99 YZF400 on Saturday, so this is my backup bike.
Thanks