Noise Reduction on 2006 Rhino 660 - Yamaha Rhino Forum - Rhino Forums.net
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post #1 of 29 (permalink) Old 05-10-2010, 08:30 AM Thread Starter
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Noise Reduction on 2006 Rhino 660

I just purchased a 2006 Rhino 660 from a friend and after riding it, I can't stand the noise. I am going to order a Benz exhaust silencer, but have read about moving the air intake with flexible tubing to the front of the Rhino. I have also heard that this might cause me to have some other engine work done on the machine after re-routing the intake.
Can anyone please let me know if you have done this and the best way to go about it?....or if you have any other suggestions, please let me know.
Thanks in advance for any advice!
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post #2 of 29 (permalink) Old 05-10-2010, 09:55 AM
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Rerouting the intake can be tricky. You will definitely need to rejet the carb, and chances are you will have to change the design a few times to get it right. The intake tube size is critical. Best bet would be to find someone that has already done it with good results, and copy their setup exactly.

Ben Haines
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post #3 of 29 (permalink) Old 05-10-2010, 10:15 AM Thread Starter
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Thanks for the input. I definitely want to say away from re-jetting, so I might wait on that for now unless anyone else has any suggestions. Just ordered the Benz muffler.
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post #4 of 29 (permalink) Old 05-10-2010, 11:51 AM
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You could remove the little snorkle that connects the airbox to the center console and then block off the hole in the console. It will get rid of ALOT of intake noise and won't require alot of jetting/tuning of a large piece of tubing running to under the hood. Since the engine would be getting its air from under the console you would need to clean the filter more though, been running mine like this for years now.
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post #5 of 29 (permalink) Old 05-10-2010, 04:58 PM
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http://www.rhinoforums.net/how/41278-quieter-rhino.html

Read this there is a link that has quite a bit of info on this.
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post #6 of 29 (permalink) Old 05-10-2010, 05:39 PM
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Not to steal the thread im in the middle of quieting mine down. Have bought a chunk of hose to move intake i will let you know how this works as i plan on putting a wide band o2 sensor on to know for sure how the jetting goes.

Has anyone dynomated(or equivalent to it) the underside of the engine cover and/or the driveshaft tunnel? How much diff does it make? One layer or two? Think this will be the next mod for me anyway its hard to hear the exhaust with all the noise inside.
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post #7 of 29 (permalink) Old 05-11-2010, 10:38 AM
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Dynamat is more for getting rid of vibrations and harmonics of metal panels. You would be better off using a fiberglass matte type product. I know they have it with aluminum on one side, that might work good, and block a little heat too.

Ben Haines
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post #8 of 29 (permalink) Old 05-11-2010, 07:57 PM Thread Starter
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Thanks everyone for the responses. I'm going to install the Benz Silencer this weekend and work on the air intake when I get a chance. That seems like it will be a little more difficult, so will have to get good plans in place before I start. Due to wife, 5 year old and 18 month old, I'll have to use my time wisely! If anyone has any other suggestions, please let me know.
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post #9 of 29 (permalink) Old 05-11-2010, 08:01 PM
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Quote:
Originally Posted by Dirtysidedown View Post
You could remove the little snorkle that connects the airbox to the center console and then block off the hole in the console. It will get rid of ALOT of intake noise and won't require alot of jetting/tuning of a large piece of tubing running to under the hood. Since the engine would be getting its air from under the console you would need to clean the filter more though, been running mine like this for years now.
X2
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post #10 of 29 (permalink) Old 05-11-2010, 08:33 PM
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Rugged Radios. Problem solved!
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post #11 of 29 (permalink) Old 05-12-2010, 04:51 AM Thread Starter
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Thanks. I'll try removing the hose from the console to the air box first and see how that goes before I tackle any more involved mods.
Thanks again for everyone's help!
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post #12 of 29 (permalink) Old 05-13-2010, 01:59 PM
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Great info thnx
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post #13 of 29 (permalink) Old 05-15-2010, 07:00 PM
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Just finished snorkeling mine today. Runs good. I used a couple of flexible elbows on mine. One on the air box and one to make the turn up into the front.
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post #14 of 29 (permalink) Old 05-15-2010, 07:42 PM
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Quote:
Originally Posted by yotehunter66 View Post
Just finished snorkeling mine today. Runs good. I used a couple of flexible elbows on mine. One on the air box and one to make the turn up into the front.
What did you use for the tubing?
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post #15 of 29 (permalink) Old 05-15-2010, 09:45 PM
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snorkel

I had good luck doing this Yamaha Rhino Snorkel
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