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Home » Motorcycle Consumer News » Tech Tips » How to work out the kilowatts of the engine?

How to work out the kilowatts of the engine? Expand / Collapse
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dragonlearner
Posted 8/24/2008 9:49:45 AM
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I have a Kawasaki EN500 how do you work out the kilowatts of the engine size. If anyone has an idea would be good to hear. Thankyou
Post #32240
torqueman
Posted 8/24/2008 11:03:55 AM


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According to a post on http://www.kawasakimotorcycle.org/forum/kawasaki-cruisers/1595-extra-lights-my-en500-ltd.html the 500 has a 17 amp output and uses 2/3 for normal running. That gives you about 6 amps to play with if those figures are correct.

If you need more you can change the running light bulbs to LEDs and gain a couple more free amps but even at that it is pretty limited.

W/E=I so a 50Watt load on a 12 Volt (E) system will draw a little over 4 amps (I). Here is a calculator to make it easier. http://www.sengpielaudio.com/calculator-ohm.htm

Torqueman
Battle Creek, MI
V-Strom 06
Goldwing 03
Post #32241
rnielsen
Posted 9/1/2008 9:19:28 AM
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Maybe Dragonlearner is referring to the engine output measured in kilowatts rather than horsepower. 

In a perfect electric motor 746 Watts equals 1 horsepower.  Of course that doesn't consider efficiency. 

If his bike had 40 HP, it could also have a 29.84 KW rating.  I think in Europe engines are sometimes rated this way for tax purposes.  Just a thought.

Ray Nielsen, in Minneapolis and just back from Nova Scotia!

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