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Why do i love my bike so much more when...

Started by uclabiker06, August 21, 2009, 04:00:06 PM

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uclabiker06

August 21, 2009, 04:00:06 PM
Why is it that when its less than 75 degrees outside my bike runs SO MUCH better.  When the weather is above 75 its like a different bike.  So much so that I don't even ride unless its cooler than 75 (dont really use the bike for transportation).  I guess cuz its air cooled but I really didn't think it would make that much of a difference.  I used to ride only when the weather was 75 and above until I rode it when it was a bit colder the other day and WOW what a difference...
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart

truckinduc

#1
August 21, 2009, 04:02:42 PM
colder air is more dense. More Oxygen means more power. Therefore motors make more power when its colder outside.

uclabiker06

#2
August 21, 2009, 06:30:21 PM Last Edit: August 21, 2009, 06:43:38 PM by uclabiker06
how much more power?   I don't think that its just more power.  The engine seems to run smoother.  Are the liquid cooled ducs the same?
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart

needtorque

#3
August 21, 2009, 07:07:24 PM
Every bike is different. My old M750 carbed would run better the hotter it got outside.  One trip in MI to the blessing of the bikes it was close to 100 degrees out and it never ran as smooth as it did that day.
Who insures the FDIC?

ducpainter

#4
August 22, 2009, 02:42:54 AM
Quote from: uclabiker06 on August 21, 2009, 04:00:06 PM
Why is it that when its less than 75 degrees outside my bike runs SO MUCH better.  When the weather is above 75 its like a different bike.  So much so that I don't even ride unless its cooler than 75 (dont really use the bike for transportation).  I guess cuz its air cooled but I really didn't think it would make that much of a difference.  I used to ride only when the weather was 75 and above until I rode it when it was a bit colder the other day and WOW what a difference...
What model?
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


uclabiker06

#5
August 22, 2009, 04:49:16 PM
S2R8, and I recently got a custom map.  I feel like it runs better w/ out the custom map in the heat but when its cold, man its AWSOME and SMOOTH.  Maybe different fuel/air mixtures are better for different weather conditions...I don't know though.
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart

ducpainter

#6
August 22, 2009, 04:52:02 PM
Quote from: uclabiker06 on August 22, 2009, 04:49:16 PM
S2R8, and I recently got a custom map.  I feel like it runs better w/ out the custom map in the heat but when its cold, man its AWSOME and SMOOTH.  Maybe different fuel/air mixtures are better for different weather conditions...I don't know though.
Sounds like it's a bit rich.

I'd think you could find a happy medium.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


DarkMonster620

#7
August 22, 2009, 05:05:10 PM
75 Degrees is the temp at midnight here in Panama, ..usually the avg temp is 90 and my 620D run fine, if it gets cooler, it means rain so it's get home fast time. When is hot, bike wont sputter, it's take a bit longer[bout 3 turns more] to start, but, my seat of the pants dyno is not so finely tuned to notice that much of a difference. [drink] [bacon]
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

uclabiker06

#8
August 22, 2009, 06:25:25 PM
 I think I have a very good seat of the pants ass dyno.
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart

hypurone

#9
August 24, 2009, 06:54:05 AM
Are you using a PCIII? If so, you can take out some fuel via the faceplate buttons to see if that helps (too rich). It was most likely tuned on a cooler day. Mine was, and I had to take out fuel on the low end to remove some slight bogging from an over-rich mix. Just one bar (2% I think) was all it took to be SUHWEET. If ya need a step-by-step on this, lemme know...
'07 S4RS "Testatretta" (In the FASTER color)
I'm not totally useless, I can be used as a bad example!

He Man

#10
August 24, 2009, 03:57:47 PM
My S2R1k, likes to be @ 220 degrees. anything less it feels sluggish, anyhting more it feels like it has no power.

my M944 only liked hot weather, i didnt have a oil tmep gauge on it though.

uclabiker06

#11
August 27, 2009, 07:24:18 PM
"It was most likely tuned on a cooler day. "

OMG, you just triggered a memory that I had the day I had my bike tuned.  I remember that I set the schedule and I didn't want to cancel on the tuner EVEN THOUGH THE WEATHER WAS COLD AND CLOUDY THAT DAY! WOW didn't think the custom map would be that sensitive.  So I guess the lesson here is never get a custom map when the weather is too hot or cold.  I actually did mess w/ some of the tables in the lower end of the rpm/throttle range and leaned them out but I think I am going to put the original map back in and do what you did w/ the face button.....o yeah. THANKS. 

HeMan yeah my S2R is happy in that exact range. 
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart
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