Hey there, I'm new to this sport and so far am having bad luck with my 150. My latest issue seems to be a big one and would appreciate any help.
First outing - runs goods
Second - will only go approx 30mph - checked compression - 118 all three cyl. Changed plugs - R6918C-9 removed/installed runs great again
Third - racing a guy on a seadoo at full throttle for 2 mins after 1 hour of 180's and fairly hard riding. Coming around the last bend I let off the throttle and the engine sounds distinctly more noisy (kind of low rattle/knock - my first thought was a spun bearing??) I idled 2 mins to shore and pulled the ski out of the water. Met a jet ski mechanic who quickly listened to the motor out of water and said it sounds OK and to put it back in the water to test, which I have yet to do.
I took a compression test again and found approx 118 psi all cylinders.
Started the engine again - seems like a rattle from the top end but I'm not sure as this the the 3rd week I have ever owned or been on a jet ski.
I'm quite able to pull the motor and rebuild if necessary but would like some advice in terms of how to test/check if it is necessary. Also is there a service manual available online for this machine?
Thanks in advance
Steve
First outing - runs goods
Second - will only go approx 30mph - checked compression - 118 all three cyl. Changed plugs - R6918C-9 removed/installed runs great again
Third - racing a guy on a seadoo at full throttle for 2 mins after 1 hour of 180's and fairly hard riding. Coming around the last bend I let off the throttle and the engine sounds distinctly more noisy (kind of low rattle/knock - my first thought was a spun bearing??) I idled 2 mins to shore and pulled the ski out of the water. Met a jet ski mechanic who quickly listened to the motor out of water and said it sounds OK and to put it back in the water to test, which I have yet to do.
I took a compression test again and found approx 118 psi all cylinders.
Started the engine again - seems like a rattle from the top end but I'm not sure as this the the 3rd week I have ever owned or been on a jet ski.
I'm quite able to pull the motor and rebuild if necessary but would like some advice in terms of how to test/check if it is necessary. Also is there a service manual available online for this machine?
Thanks in advance
Steve
