How cold temperature affects the bike's components - Kawasaki Versys Forum
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post #1 of 11 (permalink) Old 12-13-2018, 06:33 AM Thread Starter
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How cold temperature affects the bike's components

hi guys, i'm curious about one thing: is it true that in winter, with low environmental temperature, is normal that every bikes in general make a louder mechanic sound until they are warmed up? I refer to engine noise, clutch noise, metallic parts noise etc
i noticed that my bike is making more noise now that the temperature are between 0 and 10, than last summer.

as i said i'm just curious, i want to understand the behavior of the mechanic part

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post #2 of 11 (permalink) Old 12-13-2018, 07:50 AM
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I'm stupid and have been riding throughout the winter for about 30 years now. Based on my unscientific experience, yes, the engine, clutch and tranny are a little bit noisier in very cold temps, but only until the oil warms up. All of of my previous bikes have been air-cooled and the difference seems much less pronounced on the water-cooled Versys. You may find the clutch plates sticking a little bit at first, too. On most of my bikes, the rear wheel would slowly rotate with the bike on the center stand and tranny in neutral.
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post #3 of 11 (permalink) Old 12-13-2018, 07:54 AM
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oil is thicker in the cold and less sticky so takes a bit longer to coat stuff in the cold and that is why there is more noise, just let it warm up and everything will be fine
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post #4 of 11 (permalink) Old 12-13-2018, 08:10 AM Thread Starter
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Interesting explanation I read something about the sound's propagation with cold temperature too
Anyway I noticed too the rear wheel that spins slower than usual when I have the bike on the central stand and in neutral, ad it does a sound like rubbing too

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post #5 of 11 (permalink) Old 12-13-2018, 11:25 AM
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Thermo-Bob

If you are riding in 0'C to 10'C you should install a Thermo-Bob. https://www.kawasakiversys.com/forum...o-install.html

If your riding is less than 10 KM or is more than 10 KM but at 80 KM / HR , this will make a huge difference. Be aware , at 80 KM /HR at or below 5'C, your oil will never warm up to above 70'C, running full synthetic will help the engine, however if you look at my post with the bypass gauge that I have installed, you would be really surprised how long it takes to reach 86 'C with my Thermo-Bob, and my last ride @ 4'C to 11'C it was solid at 86'C . Bottom line, with the Thermo-Bob the engine performs the same winter or summer
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post #6 of 11 (permalink) Old 12-13-2018, 11:54 AM Thread Starter
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Very intresting But in my case i hit 80km/h very rarely in the morning, but often when i leave the work, in that case i hit over 80km/h easily since i have a lot of straight road. Anyway i just wanted to understand the mechanical part in case of cold weather since i noticed that the bike is noisier than usual
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post #7 of 11 (permalink) Old 12-13-2018, 03:26 PM
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Don't forget your tires if you're riding more aggressively (doesn't seem to be your case). They take longer to warm up and provide that desired grip. Not to mention when there's ice involved.
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post #8 of 11 (permalink) Old 12-13-2018, 03:50 PM
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Originally Posted by Jay_Chicago View Post
Don't forget your tires if you're riding more aggressively (doesn't seem to be your case). They take longer to warm up and provide that desired grip. Not to mention when there's ice involved.
And speaking of tires, do check the pressure as they lose pressure as the temperatures fall.


Edit: feekst speeling air or.
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post #9 of 11 (permalink) Old 12-13-2018, 06:01 PM
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The cold will make all your metal and plastic parts more brittle. Greater potential for breakage.

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post #10 of 11 (permalink) Old 12-13-2018, 09:45 PM
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Temperature and the speed of sound

Temperature is also a condition that affects the speed of sound. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound in room temperature air is 346 meters per second. This is faster than 331 meters per second, which is the speed of sound in air at freezing temperatures. The speed of sound is also affected by other factors such as humidity and air pressure.

Hope the above explanation is sufficient for your curiosity on sound propagation.
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post #11 of 11 (permalink) Old 12-13-2018, 11:38 PM Thread Starter
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It is, thanks

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