Join Date: Nov 2012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
||LinkBack||Thread Tools||Display Modes|
We just rebuilt a 600 twin yamaha top end.
After 5 or 6 rides, we decided to check compression.
It's showing 140, and 125.
I know one side is generally lower than the other, is that the output side?
From what I understand, you should be within 10 PSI, correct?
|What are the possible problems if we continue to run it?|
|What are the possible problems when taking the reading that adversely affect it?|
|Reading should be taken with throttle WIDE open, and BOTH plugs removed, yes?|
you could have several areas to key on with the hard start warm issue.
float height, needle condition, fuel pump condition, pulse line, vent lines, etc. may even be in the jetting or condition of the engine(rings, seals) down to an electrical breakdown.
hard to pinpoint any single area without actually experiencing the symptoms, but next time your out and the sled is heat soaked, try applying about 1/8 - 1/4 throttle while doing the rope tug and see what happens. did that sled experience a bit more fuel consumption?
Wow, really, you think 5-6 rides of about 20 miles a piece, you think a ring is still not seated? I though it was a very short period. That is a good thing to know then, we'll keep an eye on it. Thanks again.
You don't think we'll hurt anything leaving it as is, is that what you're saying?