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TOPIC: Re:Horse Power
#4712
ricker (User)
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Horse Power 5 Years, 10 Months ago  
What is the horse power of a stock 05 Road Star? I did find out that it puts out 106 ft/lbs of torque @ 2500 rpm. But cannot find the HP??

Rick
 
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#4717
vegasdave (User)
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Re:Horse Power 5 Years, 10 Months ago  
I also have a 05 roady.My title said 72 HP,but if you look at Yamahas home site it list stock torque at about 90#s.wqhere did you get you Numbers from?
Love my bike even 2up lots of power & Torque! Later vegasdave
 
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#4733
ricker (User)
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Re:Horse Power 5 Years, 10 Months ago  
I got the numbers for the Yamaha site "Maximum Torque 14.7 kg-m (106.3 ft-lbs.) @ 2500rpm". No luck with HP rating though...

Rick
 
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Re:Horse Power 5 Years, 9 Months ago  
I don't know what the stock numbers are either. But I can tell you that my '05 Roady has V&H powershots, Maxair air cleaner, AIS removed, 190 main jet, clip on the 2nd notch on the needle. I just had it on the Dyno today, after 5 pulls it averaged 106 ft. lbs. and 81 horsepower. These reading are at the rear wheel, which is what you want. When the manufacturer gives you ratings they usually are "at the crank". Keep in mind you loose approx. 20% thru the drivetrain, which means my Roady is producing around 130 ft. lbs. at the crank and 112 hp. So far that's been more than enough to blow away any of my friends that have the "Screaming Eagle" Harley's, even with my 300 lb. but in the seat!!!
 
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