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Exactly ,"wheelie on a harley" @[email protected]
Well after going thru this first ride review ,the reviewer brings up interesting issue to discuss ,can anyone confirm this ????
When you put your feet down, your left thigh is precariously close to the cylinder head and can be singed easily. Once the engine heats up, the radiator fan blows hot bursts of air directly onto your legs, which can get uncomfortable on a hot day.
The whole idea of liquid cooled engine was to reduce the heating up of engine especially in crazy stop n go traffics...
He adds on to say our thighs will closer to engine and might get singed ,that's scary...
 

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Discussion Starter #5 (Edited)
Exactly ,"wheelie on a harley" @[email protected]
Well after going thru this first ride review ,the reviewer brings up interesting issue to discuss ,can anyone confirm this ????

The whole idea of liquid cooled engine was to reduce the heating up of engine especially in crazy stop n go traffics...
He adds on to say our thighs will closer to engine and might get singed ,that's scary...
Talk to the existing Harley owners. Superlow and 883 were extremely hot till the second service. The heat reduces as the bike is used more and more.
 

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Exactly ,"wheelie on a harley" @[email protected]
Well after going thru this first ride review ,the reviewer brings up interesting issue to discuss ,can anyone confirm this ????

The whole idea of liquid cooled engine was to reduce the heating up of engine especially in crazy stop n go traffics...
He adds on to say our thighs will closer to engine and might get singed ,that's scary...
Liquid cooling keeps combustion chamber temperatures constant, even in heavy traffic. It has little or nothing to do with how warm or cool the rider is. On many air cooled or air and oil cooled bikes, modern emission tuning drives up combustion chamber temperatures to dangerous levels during stop and go traffic in hot places, to the point where you encounter detonation that can damage the engine. BMW police bikes have to use a second oil cooler with a dedicated cooling fan to deal with this. Air cooled Harley Twin Cams have a cylinder deactivation feature at idle that intermittantly stops fuel injection and spark to one cylinder. With liquid cooling and an adequate radiator and cooling fan you do not have these problems.

As for rider discomfort, old BMW K100s were nick named "the toaster" for good reason. Even at freeway speed so much hot air pours out of the sides of the bike next to your legs that unless you are wearing some pretty thick riding gear on your lower extremities (how likely is this on a 40 degree C Los Angeles summer day) you will suffer first degree burns on your inner calves. V-Rods get kind of toasty around the rear exhaust header in traffic but so far I haven't melted my trousers to the header like I used to do on my old Sportsters.
 

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ill be honest most motorcycles are pretty hot when stopped

for me its just a matter of how hot

but all of them seem to warm up your legs and thighs to a uncomfortable state.
 

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No... LOL!!!... This is measurable differance. Engine runs smooth and cool as it runs-in. May be thatz the reason.
I would have to see hard data to believe that explanation. The fuel air ratio is determined by values in look up tables coded into the bike's ecm. That will not change unless a new set of maps is loaded into the ecm, or components age and wear, which takes many years to happen. Unless you change the values in those look up tables, the same amount of fuel will be burned at the same rpm and throttle position and same coolant temperature or outside air temperature for an air cooled bike, regardless of age. The values are fixed electronically.

Riders grow accustomed to the heat and start to ignore it.
 

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Discussion Starter #11
I would have to see hard data to believe that explanation. The fuel air ratio is determined by values in look up tables coded into the bike's ecm. That will not change unless a new set of maps is loaded into the ecm, or components age and wear, which takes many years to happen. Unless you change the values in those look up tables, the same amount of fuel will be burned at the same rpm and throttle position and same coolant temperature or outside air temperature for an air cooled bike, regardless of age. The values are fixed electronically.

Riders grow accustomed to the heat and start to ignore it.
I understand this theory. But the difference is easily felt when u ride a brand new 883 and a 10k done 883 back to back! This is from my personal experience in trying on friend's bikes. :)
 

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I don't know about states but the harley's sold here run lean for emission norm reasons and an engine running lean will always heat up.

And if my fellow countrymen here have used a higher capacity bike in stop go or even relatively smooth city traffic , they will know how unbearable it gets during summer. Even a duke 390 will toast your legs during a hot day . I was loaned a 390 during july - aug last year and barely rode it because of heat and pollution during daytime .

BTW one thing that has been bugging me lately is everyone saying it looks small under anyone above 5'8-5'10 height. When I was astride the bike , it felt fine under me though I never thought about getting a pic clicked so that i can see what it looks like. After watching some of the picture of big american dudes riding the bike , it appears they are on top of it rather than being 'in' it.

On the radiator , don't radiators in naked bike kick in only when it is at a stop or very low speed ?

and a radiator cannot blow air out front because that means it will draw air from behind which will get heated by the cylinders.
 

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I don't know about states but the harley's sold here run lean for emission norm reasons and an engine running lean will always heat up.

And if my fellow countrymen here have used a higher capacity bike in stop go or even relatively smooth city traffic , they will know how unbearable it gets during summer. Even a duke 390 will toast your legs during a hot day . I was loaned a 390 during july - aug last year and barely rode it because of heat and pollution during daytime .

BTW one thing that has been bugging me lately is everyone saying it looks small under anyone above 5'8-5'10 height. When I was astride the bike , it felt fine under me though I never thought about getting a pic clicked so that i can see what it looks like. After watching some of the picture of big american dudes riding the bike , it appears they are on top of it rather than being 'in' it.

On the radiator , don't radiators in naked bike kick in only when it is at a stop or very low speed ?

and a radiator cannot blow air out front because that means it will draw air from behind which will get heated by the cylinders.
With a 59 inch wheel base and 480 lb wet weight, it is emphatically not a small motorcycle. It is substantially larger and heavier than my R80G/S, and no one has ever been shy about loading one of those up and riding it across country. Re-pad the seat, move the step back or make the seat flatter so you can move around on it, change the handlebars and, for me at least, move the footpegs back a bit so they are under the riders thighs when seated and it will be comfortable. Duplicate the riding position of an old R100S. I don't give a rip if I am sitting in the bike as long as the seat, footpeg and handlebar relationships are comfortable. Does anyone remember when motorcycles had nice big wide flat seats? You know, like the old Suzuki GS-1000 or a BMW R100? Why did we all move away from such nice seats to these minimalist abortions we see on bikes today?

Radiators work with the air entering the front and exiting the rear. The fans will draw air in from the front and pull it through the radiator, bathing the rider in it's heat in the process. When the bike is moving the fans won't normally be on, but I find that if I really hoon the V-Rod on a scorching hot summer day in Southern California, at least one of the two fans will be on all the time, and sometimes both.
 
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