Super Jet Purpose of the large rubber dampener on the bottom of the 2008+ SJ engines

[227]

Whats the purpose of the large rubber dampener on the bottom of the 2008+ SJ engines? Is that Yamahas answer to the Kenny keeper? Would it work on/help a pre 08 SJ?

 

[DirtyJ]

93-96 blasters came with that as well. If there is enough space underneath to clear I dont see why it wouldnt work.

 

[Shifty]

It has been discussed before. I don't remember what the conclusion was. It seems like it would dampen the noise or vibration a bit. It wouldn't have any effect as a "Kenny Keeper" as it just touches the interior of the hull and does not keep the motor from moving forward.

 

[Matt_E]

Almost all Yamaha couches have this

 

[CarterB]

ive tried cutting down the couch dampeners so they fit in SJ's but i wasnt able to notice anything. i thought about trying to tether it to another part of the hull in multiple directions acting as a keeper with some play to it but gave up the idea

 

[Mark44]

back flips they help with back flips.

 

[SUPERJET-113]

F that dumb block of rubber... more weight! :biggrin:

 

[kevbo]

It unloads that section of the hull during hard flat landings.

 

[SUPERJET-113]

That makes sense Kevbo on a big sitdown hull where there is more area and more easily prone to flexing... but i wonder why the new SJ's have them? Obviously there must be more room under there than 96-07's, so why do it now?
Just because they can?
Maybe the new bottom deck design is more prone to breaking there now?
I didnt even know the new SJ's had that.

 

[kevbo]

It cuts the bending force between the mounts in half in hard water landings and takes out even more on a log jump. Since the new SJ was made for racing I bet that is what they had in mind.

 

[yamaslut]

back flips they help with back flips.

don't say that... all the posers will have to go buy one immediately...

 

[tor*p*do]

sawz-all ; )