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Discussion Starter · #1 ·
I tried a few different things that just didn't work out. Until I found this from summit racing. It is alittle pricey but it works very well. There are three sizes you can buy. I bought the larges sheet and it was enough to do mine and a friends cover.

I wiped down the inside with carb/brake cleaner to remove any oil. I made temples out of sheets of paper, taping them together and cutting to fit. Then tracing the templet onto it. I used some good tin snips to cut it. I did this in three pieces. After it was on I took a ball peen hammer using the rounded end to form it into all the nooks and crannies. I used some aluminum tape to cover all seams.

There is still the noise from the intake but it is so much quieter then before. I can talk to who ever without yelling. The cover gets warm but no longer gets hot. Check out the link below to summit.

DEI Floor and Tunnel Shields - SummitRacing.com
 

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Nice work...!

However... the single best thing you can do to it IMO is to ditch the snorkel from the air box to the engine scoop...seal of the hole with your lining...re-jet your carb...

That is what we refer to as running 04-style...because in 2004 there was no air scoop...and no snorkel...same air box...same carb...different jetting...they ran better...and much, much, much quieter...

More power...less noise...

The ONLY downside is more frequent filter cleaning...


And in reality...the filter dry's out before it gets clogged with dirt anyway...even with the scoop...and that is bad...IMO a little more maintenance on the filter is NOT a down side...


Did I forget to mention that we sell the jets and carb screws you need to do it right... :biggrin:
 

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Nice work...!

However... the single best thing you can do to it IMO is to ditch the snorkel from the air box to the engine scoop...seal of the hole with your lining...re-jet your carb...

That is what we refer to as running 04-style...because in 2004 there was no air scoop...and no snorkel...same air box...same carb...different jetting...they ran better...and much, much, much quieter...

More power...less noise...

The ONLY downside is more frequent filter cleaning...


And in reality...the filter dry's out before it gets clogged with dirt anyway...even with the scoop...and that is bad...IMO a little more maintenance on the filter is NOT a down side...


Did I forget to mention that we sell the jets and carb screws you need to do it right... :biggrin:


X2 this is how i ran mine and it was wayyyyy better!
 

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What was the stock jetting for an 04 Rhino? I have ditched the snorkel and sealed my hole but my jetting is factory 06 settings. I haven't noticed any difference in power or driveability, but my cabin quieter.
 

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::::::::::::::::

Mini Jet Kit

::::::::::::::::

If you order that jet kit it will have everything you need...pilot jet, the main jets only in the range you want...and all the SS SH carb screws...
 

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I did basically what Rutting Rhino is describing, and I used a sound deadener sheet from a car audio shop marketed by Rockford Fosgate ( I can't remember the name ) to line the engine cover and plug the snorkel vent. Now the noise I hear is coming from the bed area between the engine cover and bed. I can't compare to what it sounded like stock, because I did it when I swapped out my 450 to the 660. I can say that it is so much quieter than the 450. Much easier to talk to the passenger than before. this is essentially what the OP did, just using a different material.


Sent from my iPad using Tapatalk
 

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Dumb question, but how will the engine get air? This is very interesting becuase when me and my girl ride its so loud I cant hear her (atleast tahts what I keep telling her :) )
 

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You leave the air box lid off. The engine draws air from under the cover.


Sent from my iPad using Tapatalk
 

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::::::::::::::::

Mini Jet Kit

::::::::::::::::

If you order that jet kit it will have everything you need...pilot jet, the main jets only in the range you want...and all the SS SH carb screws...

Can you tell me what size jets (pilot/main) were used in a stock 04 Rhino? Also, how many turns of the screw? I've got a ton of Mikuni jets and would like to swap them and see if I like them.
 

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Hey, here is a post I've found from Rutting Rhino discussing it, I believe he says the main Jets were 150.

"Sorry to have say I have done more snorkeling options for quiet operation than I am willing to discuss... All of them successful... to the point of delivering ADEQUATE performance...

Peeps will argue with my opinion and that's fine... but here it is...

The simplest, easiest, most fool-proof, FREE, yes I said FREE way to get instant peace and quiet (relatively speaking) for an 05-07 rhino is to revert to 2004 mode of operation...

For those of you not familiar here is the history...

In 2004 there was no air scoop on the engine cover...the carb had a 150 mainjet.

Same exact airbox/filter for all carbed 660 years...

Problem...

1. Air filter gets dirty fast...
2. Whiners start whining about it...

3. Oiling the air filter is a dealer prep item...which all too often they don't do...

So what happened...Yamaha has peeps running back with low hours needing a top-end over-haul due getting the vehicle with a bone dry air filter...dealer says it's a maintenance issue...owner's throw a fit...because they assumed it was ready to hit the dirt when they picked it up...which it should be !!!!

One public relations disaster after another because angry customer caught in the middle between dealers and factory over warranty...or lack thereof...

Something got confused in the tangle tho...

Dirty air filters CANNOT damage the motor...only dry ones...

So pretty soon everyone was saying the problem was dirty air filters.... remember...even the ones with no other problems are crying about that as LOUD as possible on the net.

So Yamaha FIXED it by piping the ear-splitting intake noise into the cab...:eek5:

Now keep in mind that the 04s that were in good health ran stronger than the later years because they had HIGHER air flow... (no restrictive snorkel that hurts power) and better jetting...plus they were pretty quiet...

Snorkel the air in under the hood for clean air...???

I say no...don't...because the restrictive intake kills more power and causes more trouble than the clean(er) air provides...it does increase cleaning intervals...so what... :13:

Cleaning the stock filter is actually no problem if you have the right stuff and not interested in doing more work to get out of work than just doing the work in the first place... :lol:

So...

Take the snorkel/adapter to the scoop off... seal the hole in the scoop... done...

Try that... then add a snorkel if you want it even quieter... "
 

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Discussion Starter · #12 ·
Thanks Modzilla - summit was way cheaper than dealing w/ DEI direct.I ordered some also.

No problem glad to help. Just take your time when putting it on. start up inside and slowly lay it down. Us the ball peep hammer to form it to the cover as you set it.
 
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