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| Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles |
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11-23-2008, 04:16 PM
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Motorized Bicycle Elite Member
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Join Date: Jul 2008
Posts: 157
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Wow, it's cold!
Went for a short ride today, around 5 miles. Rather chilly here in New England, in the 20's. The MB ran fine and even started right up better than I thought it would considering the temperature and that the bikes' been sitting for a while. Finally got up the gumption to put on the NASA space suit, with boots, gloves, helmet, and Oxygen rebreather and give it a go. The bike ran smooth as a baby's butt, except that it would stall out rather than idle. I was going to fiddle with the idle adjustment, but then it occurred to me that maybe the reason for it stalling was the ambient air temperature. The cold air may have been preventing the engine from reaching and maintaining a normal running temperature, thus causing frequent stalling. Any thoughts on that?
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11-23-2008, 04:45 PM
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Administrator
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Join Date: Dec 2007
Location: St. Croix US Virgin Islands
Posts: 3,855
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Re: Wow, it's cold!
they said we had a major cold front coming thru here this week and i thought to myself that sucks. then they said the lows during the day was low 80's and night time low to mid 70's. i started laughing thinking to myself this is a cold front i can live with. in michigan a cold front was sub zero. i hope it warms up for you all soon
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11-23-2008, 05:54 PM
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Godfather of Motorized Bicycles
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Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 10,864
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Re: Wow, it's cold!
It may have stalled due to a leaner mixture caused by the cold dense air.
I hide in the shop anywhere south of 55 degrees, I've ridden enough stuff in enough "stuff" to not ride in it anymore.
It snowed 24" on Fri. Then it's going to start again here tomorrow through Thanksgiving.
I will cajole Cruiser when it's 103 degrees and 99.999% humidity there in the V.I. and it's a balmy 75 and sunny here....
__________________
If it ain't broke, and you mess with it long enough, it will be.
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11-23-2008, 06:00 PM
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Motorized Bicycle Elite Member
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Join Date: Jul 2008
Location: Northglenn,Colorado
Posts: 627
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Re: Wow, it's cold!
I found out yesterday that if I turn my wheel on my FWD Buggy Bike and gun it that sit and spin toy has NOTHING on me!
C'MON SNOW!!!!
__________________
You have found the fountain of youth. Ride and forever stay young.
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11-23-2008, 06:01 PM
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Motorized Bicycle Elite Member
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Join Date: Jul 2008
Posts: 157
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Re: Wow, it's cold!
Quote:
Originally Posted by Bikeguy Joe
It may have stalled due to a leaner mixture caused by the cold dense air.
I hide in the shop anywhere south of 55 degrees, I've ridden enough stuff in enough "stuff" to not ride in it anymore.
It snowed 24" on Fri. Then it's going to start again here tomorrow through Thanksgiving.
I will cajole Cruiser when it's 103 degrees and 99.999% humidity there in the V.I. and it's a balmy 75 and sunny here.... 
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ditto... I lived in South Florida for years. There ain't no such thing as paradise.
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11-23-2008, 06:31 PM
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Administrator
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Join Date: Dec 2007
Location: St. Croix US Virgin Islands
Posts: 3,855
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Re: Wow, it's cold!
we are so close to the equator temps really don't change much. i been here all summer and it never got above 92 or below 73 so i don't think we will be seeing 100 degree temps but you never know.
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11-23-2008, 06:44 PM
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Motorized Bicycle Newbie
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Join Date: Nov 2008
Location: quebec canada
Posts: 1
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Re: Wow, it's cold!
my bike is hard to start in cold weather why
Last edited by nikis; 11-23-2008 at 06:47 PM.
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11-23-2008, 08:28 PM
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Motorized Bicycle Elite Member
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Join Date: Jul 2008
Posts: 157
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Re: Wow, it's cold!
Quote:
Originally Posted by nikis
my bike is hard to start in cold weather why
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Colder air is more dense. Denser air has more oxygen. The same volume of cold air is feeding more oxygen to the engine than warmer air. Modern carburetors have mechanisms for automatically compensating for changes in air density. Needless to say, our MB carbs are not exactly on the cutting edge of modern technology.
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11-23-2008, 08:40 PM
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Banned
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Join Date: Sep 2008
Location: Clearwater, FL
Posts: 1,727
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Re: Wow, it's cold!
Quote:
Originally Posted by CRUISER
we are so close to the equator temps really don't change much. i been here all summer and it never got above 92 or below 73 so i don't think we will be seeing 100 degree temps but you never know.
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I spent a few years in Miami before moving to the Tampa Bay area. The summers were a lot better in Miami! August and September are really HOT here! In Miami you get the afternoon torrential rains in the summer...there's also the Atlantic that provides a cooling effect.
Jim
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11-24-2008, 06:27 AM
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Motorized Bicycle Elite Member
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Join Date: Jul 2008
Posts: 157
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Re: Wow, it's cold!
Quote:
Originally Posted by Creative Engineering
I spent a few years in Miami before moving to the Tampa Bay area. The summers were a lot better in Miami! August and September are really HOT here! In Miami you get the afternoon torrential rains in the summer...there's also the Atlantic that provides a cooling effect.
Jim
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not to mention the cockroaches the size of tennis shoes.
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