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post #1 of 3 (permalink) Old 05-17-2009, 10:53 PM Thread Starter
Join Date: May 2009
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Question 450 Rhino Questions

Can I bypass thr rev regulator?
And are the wheel spacers good or bad?
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post #2 of 3 (permalink) Old 05-18-2009, 11:17 AM
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you can get a cdi box for a 450 I believe that will get rid of that rev limiter.

1 1/2" spacers will make it more stable.

Benchmark Performance 686, 67.6 RWHP
http://www.unleashedutv.com/ 602-246-4011
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post #3 of 3 (permalink) Old 05-18-2009, 11:29 AM
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Originally Posted by McCoyWyo View Post
Can I bypass thr rev regulator?
And are the wheel spacers good or bad?
Yes, aftermarket CDI boxes will remove the rev limiter for both forward and reverse. They MAY give you a small increase in power or improved starting also...

As far as spacers, rear wheel spacers will make a noticeable improvement in stability. Note that Yamaha will be adding 2" spacers to the rear in their new "voluntary recall/maintenance" but they won't be doing anything to the front...

Adding spacers to the front helps reduce "plowing " in turns. What wheels are you running? That will determine what spacers you might add to the front -- it's not recommended to add more that 2" increased width to each side (by a combination of wheels and wheel spacers) because you'll:
(a) increase the stress on the front spindles, wheel bearings and other components, and
(b) you'll expose the brake discs to potential damage by rocks or other obstacles that could hit them...

You can see what this 2" increase in width in the front looks like on my 450 in the gallery here: 2008 Rhino 450 Special Edition with its transport - Yamaha Rhino Media Gallery

Mine has a combination of 5+2 offset ITP Delta steel wheels which add one inch to the front, then additional one inch spacers. I'm running two inch spacers on the rear to keep the front and rear the same width...
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