Super Jet Whole Superjet Shakes?

[SkiNick]

Hey everyone, last year at the end of the season my superjet started to shake. As soon as you start giving it gas it shakes and looses speed. So I found out 2 of my motor mounts where broke, so i replaced them and just today i tried it out in the water again. Same thing. It must be something in the jet drive area? Im not sure what it would be. It shakes bad, i mean where the water in the tray will fly up into your face. Anyone have any clues to what this would be? Any help appreciative, Thanks.

-Nick

BTW: its a 1993 650 superjet, not sure if that matters.

 

[Kohldanielzimmer]

Did you align the motor?

 

[SkiNick]

Did you align the motor?

Yeah I think it's aligned all good.

 

[98gti]

Harlem shake?

 

[Mdavies_02]

Something jammed in your prop? Something's off balance, go over everything that spins

 

[SkiNick]

Harlem shake?

Exactly! Superjet Harlem shake!

 

[SkiNick]

Something jammed in your prop? Something's off balance, go over everything that spins

Thank you!Defiantly will!

 

[SJ 701X]

Does it shake like this? If it does you have a serious problem.

 

[iangdesign]

I would yank the engine and check the other two motor mounts and inspect the midshaft as well. Wamilton's has a good vid on youtube for proper coupler alignment.

 

[SkiNick]

Does it shake like this? If it does you have a serious problem.

Hahaha that's to funny! But not like that!

 

[SkiNick]

I would yank the engine and check the other two motor mounts and inspect the midshaft as well. Wamilton's has a good vid on youtube for proper coupler alignment.

Awesome! Will defiantly check it out. Thanks a ton!

 

[Matt_E]

Yeah I think it's aligned all good.

I don't think it is.

 

[SkiNick]

Well, it turns out there was a stone lodged in the prop. It was also scraping up against the surrounding metal cone surrounding the prop. The prop is also all chipped up so it makes rattling noises hopefully it will not make it anymore after running. I'm going to throw it in the pond tomorrow and see if the vibrations continue

 

[tac]

mine did the same thing inspected everything and found nothing so i think my prop is having a cavitation problem , you should see my prop its toast. just got a concord prop going to throw that on maybe that fixes mine i hope. could be the same as yours!

 

[Mdavies_02]

Clean up the prop with a dremel if its beat up. It may not seem it but that was a lucky break for you, could have been a engine issue.

Well, it turns out there was a stone lodged in the prop. It was also scraping up against the surrounding metal cone surrounding the prop. The prop is also all chipped up so it makes rattling noises hopefully it will not make it anymore after running. I'm going to throw it in the pond tomorrow and see if the vibrations continue