Hello all! I'm new here and this will be my first post.
I just picked this up yesterday for my wife. Runs only on the right side cylinder. Left cylinder has little to no compression going by the "thumb test". It sat for a while. I was hoping the other cylinder would light up after running a bit but sadly it is not to be. I believe I'll be tearing the engine down on it. I've been poking around on this site, found some good info and decided to register and post my findings. I'm only taking the engine out today as I don't have a book. Tomorrow I'll get down to the dealer and see if they have a manual for me. Any suggestions there? I imagine it's going to be a Haynes or Clymer. Also today I figured on putting my left side piston on BDC with the valves closed and putting some compressed air to it through the spark plug hole. I figure that will tell me where it's leaking. Previous owner made no mention of lacking compression. He does have a CB175 that's been wrecked but supposedly a newly rebuilt engine but I don't know if I trust him. I did verify that the valves are working through the adjustment covers but that doesn't mean they're sealing. Still, it feels like there's a hole in the piston. Wish I had one of those bore scopes... Could be that the bike lost compression from sitting, could be the guy is dumb as a rock and never noticed a dead cylinder, could be he knowingly sold me a bum engine. I'll get to it though. There are other issues as well but for now I want to find where my compression has gone.
Hope this pic works.
I just picked this up yesterday for my wife. Runs only on the right side cylinder. Left cylinder has little to no compression going by the "thumb test". It sat for a while. I was hoping the other cylinder would light up after running a bit but sadly it is not to be. I believe I'll be tearing the engine down on it. I've been poking around on this site, found some good info and decided to register and post my findings. I'm only taking the engine out today as I don't have a book. Tomorrow I'll get down to the dealer and see if they have a manual for me. Any suggestions there? I imagine it's going to be a Haynes or Clymer. Also today I figured on putting my left side piston on BDC with the valves closed and putting some compressed air to it through the spark plug hole. I figure that will tell me where it's leaking. Previous owner made no mention of lacking compression. He does have a CB175 that's been wrecked but supposedly a newly rebuilt engine but I don't know if I trust him. I did verify that the valves are working through the adjustment covers but that doesn't mean they're sealing. Still, it feels like there's a hole in the piston. Wish I had one of those bore scopes... Could be that the bike lost compression from sitting, could be the guy is dumb as a rock and never noticed a dead cylinder, could be he knowingly sold me a bum engine. I'll get to it though. There are other issues as well but for now I want to find where my compression has gone.
Hope this pic works.