Do i need to regear or what? please help! - Yamaha Rhino Forums - Yamaha UTV Forum
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Old 10-12-2009, 02:18 PM Thread Starter
1/4 Throttle
Join Date: Oct 2009
Posts: 4
Do i need to regear or what? please help!

hello i have a 2007 Yamaha rhino 450cc.

A while ago i put on some new tires and rims. the rhino originally had 25 inch tires on it, my new tires are 27 inch. i have been have a lot of power loss on my rhino both top end and low end grunt and it has also become very loud while using it. could this be from the larger tires? is the two inches bigger enough to make a difference or could this be something else? and one last question does anyone know what the stock gearing is on these.
-Thanks for any help
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Old 10-12-2009, 03:24 PM
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Location: vegas
Posts: 466
yes the 2" make a diff. the 45o dont help any.. i have a 660 and it robbed power so i went back to the 12" wheels again...and things are good again...these things have so little power, so whatever you do it effects it greatly. and power upgrades dont do much too them either. hope this helps


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Old 10-12-2009, 03:48 PM
Wide F'n Open
Join Date: Jun 2008
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And no, there is no way to change the gearing. Best thing you can do it mess with the clutching, and even then, dont expect much.
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Old 10-12-2009, 04:25 PM
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change the clutching, diff rollers and a heavier secondary spring, this will help alot. those tires are pretty big for a 450 though.


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Old 10-12-2009, 05:16 PM Thread Starter
1/4 Throttle
Join Date: Oct 2009
Posts: 4
thanks for the info. still new to this vehicle.

There is no way to change the gearing? I have re geared my wrangler for my 33's so that's were I got the idea.

I don't quiet understand about the different springs and clutch kits that come with weights. How does that all work?

This rhino is also a lot louder than when we originally bought it. Could this e the engine just revving a lot more to try to push the bigger tires? Are they any kind of common exhaust leaks? Its all stock in the exhaust system.

Thanks for all the information. really appreciated.
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Old 10-12-2009, 06:06 PM
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Join Date: Feb 2009
Location: Omaha, Ne
Posts: 46
You might me slipping he belt that's where you are getting the noise from. I would do some clutch work. Talk to Mike at Unleashed UTV he will get you set up and answer some questions for you.
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Old 10-12-2009, 06:53 PM Thread Starter
1/4 Throttle
Join Date: Oct 2009
Posts: 4
ok thanks for all the info
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