Reply to thread

Message: [QUOTE="phorton, post: 926631, member: 61562"] Thanks again for the reply Viking20 ... key points to remember. Will read the Eric Gorr article completely. Called several more places after last post, and found a machine shop that says they can do the work. 1 hour for the bore, and ? 1.5 for the crank alignment. hmmm .... $70/hr .... hmmmm .... bring the piston, etc. Will probably call a few more places as time passes, but at least I have a starting point. Viking20, it sounds like you are saying that the scream (and it is definitely a high pitched noise) is likely not from any of the bearings, but is more likely in the gearbox or clutch. Yikes ... this runs counter to my whole theory (ring and or piston pin/bearing) about the high pitched noise. I'll know more when I take a look ... if the ring is broken or badly scored it will jive with my feelings. I don't know how to evaluate the little bearing/piston pin, but I'm replacing them anyways. Regarding the clutch/transmission, I guess I will examine everything as carefully as I can ... maybe disassemble and re-assemble the transmission and look for anything real bad and obvious. Stuff that wiggles around is hard to judge. The new clutch basket might help ... and there will also be new thrust bearings and plates. Maybe the noise is from a thrust bearing? This is the hard part ... KNOWING what you're doing ... and only comes from experience. Somewhere there's probably somebody that could hear this engine noise and just say "oh yeah, these old Yamahas ... I know exactly what that is" .... and I wouldn't be messing with the good old working parts of this motor ... only the bad old ones ... But this is also how you learn, so I'm going to end up putting a lot of stuff into the engine it might not need, and may still miss the key part(s) that are causing me grief. LOL .... (p.s. I thought briefly about trying to make a sound recording of the noise, but breaking the motor just as I'm passing a tape recorder at 20 mph is not likely to result in any usable information lol) [/QUOTE]

Verification: Which ocean is California closest to?