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I've noticed the fan coming on only once on a rather cool 55* day at the end of a run parking it in garage. Never heard my fan come on again, even in 75* weather.
 

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I have that happen quite a bit down here in Houston around 85 degrees. Being a water cooled engine I just think the computer reads the temp spike when you stop at a light from on the move and turns the fan on preemptive. Mine rarely stays on the span of the light so I have been worried. If it turns on and runs for awhile then is start to get worried
 

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Mape said:
my fan cycles alot, even while moving, altho it hasn't been under 90 degrees in about 3 months
You Very lucky for that kind of weather!!
 

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90 degrees is Sweating Weather here LOL
 

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90* and I would be jumping off a tall building.


I asked the local dealership about the fan being on so much, he called Yamaha and checked into it for me. Apparently the thermostat is a 195* one, and the bike just naturally runs hot. I have been checking it with a laser thermometer during rides and it stays right around that temp so I figure there is nothing too serious to worry about.
 

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I also have noticed mine running a bit hotter than my v-star did and the fan cycling at lights as well. Was a little worried but I figure--bigger motor=more play=hotter engine ;) Got a bit more piece of mine reading others posts on this...LOVE THIS FORUM!! Thanks all :)
 

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"Cool" Idea with the laser reader 2Wheeler!!
 

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after about 5 mins idling the other day my fan came on.. and Sunday it was on pretty much the whole day lol.. 90 degree riding weather will do that
 

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My fan runs constant while riding slow thru city or town. and takes 15 minutes of highway riding before it shuts off. All Normal.
 

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My kawi did the same thing as does my stryker, it was 107 here today in California so, I figured it would be on alot, I wouldn t worry about it.
 

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This motor does run hotter, however, you have both a check engine light and a coolant light on the motorcycle, if it is out of range one will come on. I do not know this for the stryker, but many new motorcycles will shut themselves off if they get too hot. WIll have to do more research.
 

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i'd actually wondered about that fan. is it cool to shut the engine off when it's running; like the power? or should we let it run to cool down? (or will it cool down quicker if we shut the bike off??) wtf, over!!
 

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Kind of wondered about that myself TX, I've been shutting mine off, figure if it's off it can't get any hotter. Anybody know why the 1300 Stryker is water cooled while the 1900 Raider is Air? Just wondering
 

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Its best to shut it off my polaris atv does it as well. When you hit the kill switch and the fan continues to run unless your in traffic, waiting for a train or anything else just turn off the key and save your battery its not helping to cool the motor off its just cooling off the coolant in the radiator.
 
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