Why does humidity matter? (2020)

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What a change from summer in the Hudson Valley here next the sea. Rarely exceeds low 70s F and
more often in the 60s. The bikes love it. I now wonder if the factories actually fully understood what
stateside life was going to be like for their offspring.
 
Onder said:
What a change from summer in the Hudson Valley here next the sea. Rarely exceeds low 70s F and
more often in the 60s. The bikes love it. I now wonder if the factories actually fully understood what
stateside life was going to be like for their offspring.
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Do you suffer much with corrosion?? I remember Frank Westworth writing about his bikes being eaten away even under tarpaulin down in the West Country.. (UK)
 
EstuaryBoy said:
Do you suffer much with corrosion?? I remember Frank Westworth writing about his bikes being eaten away even under tarpaulin down in the West Country.. (UK)
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Another reason not to cover your bikes in the garage with sheets or blanket... unless you keep the bike in doors or heat the garage. Alloy sweats and retains the moisture under the covers
 
Corrosion absolutely! But I'm fortunate to have a proper garage and my bikes only issue forth in fine weather. The days
of all season transport are long over.
Part of New York State is decidedly seaside and I remember visiting a large car park of vintage autos that although entirely
complete had rusted through entirely although the owners seemed oblivious to the fact!
 
Onder said:
Corrosion absolutely! But I'm fortunate to have a proper garage and my bikes only issue forth in fine weather. The days
of all season transport are long over.
Part of New York State is decidedly seaside and I remember visiting a large car park of vintage autos that although entirely
complete had rusted through entirely although the owners seemed oblivious to the fact!
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I think that rust thru had more to do with winter weather than seaside living. I have lived in NY long long time winters can be tough and even a mild winter is still tough on cars . We are not oblivious to it trust me we hear and see the rust slowly destroying out cars and trucks.
 
I met a BMW airhead owner who ran a small bottle of water on top of his gas tank . Two tiny hoses went to the manifolds , with tiny pilot jets to meter the additional water vapour spray (s) .
I was very impressed and he said he had done 300, 000 Kms. without any mechanical work to it. In Northern Ontario.
 
maylar said:
My 74 850 has always loved a cool crisp 60 degree day and hated a hot humid day. I can definitely feel a difference in performance in this Summer heat wave we've been having. Why is that?
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If your bike is quicker when the weather is cold, it is probably running slightly too rich under normal circumstances. If your motor is tuned correctly, it should probably become a pig in cold weather and need some choke. Cold air is denser, so you need more fuel to get the chemical balance in the combustion chamber correct. It is the reason that we in Australia love to race using methasnol. It's high latent heat of vaporisation causes chamical supercharging. The down side is you use twice as much fuel. But methanol has 3/4 the calorific value of petrol, and it is easier to get tuned right. - MOre margin for error.
 
Torontonian said:
I met a BMW airhead owner who ran a small bottle of water on top of his gas tank . Two tiny hoses went to the manifolds , with tiny pilot jets to meter the additional water vapour spray (s) .
I was very impressed and he said he had done 300, 000 Kms. without any mechanical work to it. In Northern Ontario.
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Some WW2 fighter planes had water injection.
 
Torontonian said:
I met a BMW airhead owner who ran a small bottle of water on top of his gas tank . Two tiny hoses went to the manifolds , with tiny pilot jets to meter the additional water vapour spray (s) .
I was very impressed and he said he had done 300, 000 Kms. without any mechanical work to it. In Northern Ontario.
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Should have told him to fill up with E10..... and wait!!
 
Onder said:
What a change from summer in the Hudson Valley here next the sea. Rarely exceeds low 70s F and
more often in the 60s. The bikes love it. I now wonder if the factories actually fully understood what
stateside life was going to be like for their offspring.
Click to expand...
The fact that you are near sea level is the biggest factor. Barometric pressure (which will be higher at sea level) and temperature are the 2 biggest factors in power output.

Both contribute to denser air.
 
On my 1400 Hayabusa I would inject nitrous oxide which is extremely cold -160c or so, and that improved the performance markedly. ;)

my pal also was one using water injection in his turbo.
 
acotrel said:
Some WW2 fighter planes had water injection.
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Water injection was to allow more boost without detonation. The water injection itself did not increase horsepower.

The Germans also injected nitrous oxide. THAT increased horsepower.
 
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