soccerdad
Well-Known Member
Man my luck is getting worse! I went to my other GTX to richen up the HS screw, and noticed some leakage on my nice clean motor. So I tried to pop the top of the RAVE and everything was melted together. :facepalm: The cap (the one below the spring) was totally melted, and even the top cap was messed up. I had cleaned them just a few hours of riding ago and put in brand new O-rings so I would not have any issues. I did not pay attention to the shaft clearance going through the removable valve housing block. Now it looks like the valve shaft is badly worn on one side. I assume this caused the blow-by and melt down? What else could have caused it? The shaft in the necked section is .383" compared to .391 on a good one. Do the valve housing block also wear? How do you measure them?
Could this cause a loss of top end RPM? This is on the Shamu ski. When I first took it out, it hit 51.4 MPH. The last time I ran GPS on it, it was only 48 or so. Also, the thing would only rev to 6500 and not to 7000. I checked and I am getting full throttle opening and the motor pumps 152 PSI on both jugs. The manual says the raves only change the power band and not top end, but I would have to think if the rave never opens, then it would kill the port opening and decrease top end. I think the manual is talking about working raves...
As usual THANKS!
Could this cause a loss of top end RPM? This is on the Shamu ski. When I first took it out, it hit 51.4 MPH. The last time I ran GPS on it, it was only 48 or so. Also, the thing would only rev to 6500 and not to 7000. I checked and I am getting full throttle opening and the motor pumps 152 PSI on both jugs. The manual says the raves only change the power band and not top end, but I would have to think if the rave never opens, then it would kill the port opening and decrease top end. I think the manual is talking about working raves...
As usual THANKS!
