Heavy vibration full throttle

[Tbeercheck]

Hi my brother in-law haze a 2012 VX Cruiser that is vibrating under full throttle. I was thinking it could be the impeller ? The RPMS are 8000 with low power . He isn’t one to install fresh plugs at the beginning of the year . Just spit balling. Any help would be appreciated thank you

[K447]

Hi my brother in-law haze a 2012 VX Cruiser that is vibrating under full throttle. I was thinking it could be the impeller ? The RPMS are 8000 with low power . He isn’t one to install fresh plugs at the beginning of the year . Just spit balling. Any help would be appreciated thank you

What do you mean by ‘low power’?

Is the engine revving high but there is weak thrust from the jet pump? If yes, inspect the impeller in the jet pump for debris.

[Flash]

Hi my brother in-law haze a 2012 VX Cruiser that is vibrating under full throttle. I was thinking it could be the impeller ? The RPMS are 8000 with low power . He isn’t one to install fresh plugs at the beginning of the year . Just spit balling. Any help would be appreciated thank you

Sounds like possible debris inside the intake or prop.

[Erierunner]

8,000rpms at wide open is where that MR-1 should be. If vibration and low power, I would suspect the impeller or debris with low power.

[bizeagle]

if you have even a small chunk of debris like a piece of wood, some plastic, a piece rope, fishing line, anything at all in the blades, you will get vibration. Also, see if any of the blades are chipped, cracked dinged or bent. You can just shine a flashlight up through the intake grate to do an inspection. There are other potential causes but those are the typical ones.