June 10th, 2011, 03:09 PM | #1 |
ninjette.org member
Name: Jordan
Location: Greencastle, Pa
Join Date: May 2011 Motorcycle(s): 2007 Ninja 250r Posts: 79
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Raising Idle RPM
So I noticed today on the way home from work after about 20 minutes into my ride that when I stopped my bike would only settle to about 2000 RPMs instead of its usual 1200-1500 idle. It was a crazy hot day and it had been in the sun all day dont know if that makes a difference or not but I figured I would throw it out there.
So what are the possible causes of this? Is it cause for concern? |
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June 11th, 2011, 12:08 PM | #2 |
ninjette.org member
Name: M
Location: Oklahoma
Join Date: Jun 2009 Motorcycle(s): Ninja 250 x2, Ninja 650R Posts: 165
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Probably debris in the jet(s), which will cause the RPMs to 'hang'. You can try chemicals, such as Seafoam, or pull the carbs and inspect all the jets.
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The Rally - Oklahoma |
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June 14th, 2011, 12:05 PM | #3 |
ninjette.org member
Name: Sean
Location: Capital District, NY
Join Date: May 2011 Motorcycle(s): 2007 Ninja 250R Posts: 18
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Is seafoaming a bike recommendable? Got any quick tips on the process? Do you replace plugs like you would in a car?
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June 14th, 2011, 12:29 PM | #4 |
ninjette.org member
Name: LOU
Location: Imperial County, California
Join Date: Nov 2010 Motorcycle(s): GreenSE 09 250R Posts: 247
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Same thing here. On hot days when im out for a ride or coming home from work, my rpms stay higher up too after only about 10 mins into it. Not only at a stand still but on the road, @ 70mph im almost a full 1K up from usual. Any ideas why???
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June 14th, 2011, 12:51 PM | #5 |
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
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Air temperature can have an affect how an engine runs. Air density increases as air gets colder. This means that there are more oxygen molecules in the same space when the air is cold. When the temperature drops, the engine will run leaner and more fuel is needed to compensate. When the air temperature gets warmer, the engine will run a little richer.
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