98 Speedster Engine Rattle

[Matt0]

Can anyone help me diagnose the issue with both these engines? I purchased this winter and it ran a few weeks ago. Everything went well for a couple hours until the engines started doing this.
https://youtube.com/shorts/iueM4oCOJv4?feature=share
https://youtube.com/shorts/jteXZVla-OU?feature=share

TIA!!!

 

[mikidymac]

If the rattle is only at idle or when on the trailer it is perfectly normal and just what all seadoo's do.

It looks like your starboard muffler got hot at some point since the paint has turned from silver to brown.
I would check all your cooling hoses for blockages and the water control valve on the muffler itself.

 

[Matt0]

Appreciate the reply.

I cannot get the engines to throttle up (even on water). I believe that it did get hot since I found that one of the hoses to the resonator came loose. Should I be worried that it overheated during that time? No alarm sounded. Will check all the hoses and valve tonight

 

[mikidymac]

These do have a neutral switch that won't let the engines rev up without being in forward or reverse.

 

[Matt0]

Think I may have found one problem

 

[mikidymac]

That would be caused by lack of water and a result of the overheated muffler paint that we saw.

 

[adambwhitten]

Think I may have found one problem

Did you fix the issue? Our seems to have the same rattle. I mean I know seadoos do it, just sounds excessive.

 

[Matt0]

I installed a new pressure valve and resonator and it runs like a champ now