July 20th, 2012, 06:36 AM | #1 |
ninjette.org newbie
Name: Catie
Location: Dade City, FL
Join Date: Apr 2012 Motorcycle(s): 2007 Ninja 250 Posts: 6
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Bike won't rev
Alright guys, my '07 is finally running, but when i go to rev it, it gets to about 2k and boggs out and dies. I had to adjust the needles because it was getting too much gas and wouldn't rev at all, but now I can gas it slightly before it dies. Taken the carbs apart n cleaned them MANY times, jets n all, replaced spark plugs, and just put a new regulator on it. HELP PLEASE!!!
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July 20th, 2012, 07:05 AM | #2 |
Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
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Mix is lean.
Have the valves been adjusted recently?
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Motofool .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
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July 20th, 2012, 03:08 PM | #3 |
ninjette.org newbie
Name: Catie
Location: Dade City, FL
Join Date: Apr 2012 Motorcycle(s): 2007 Ninja 250 Posts: 6
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No I haven't messed with them. What do I need to do with em?
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July 20th, 2012, 03:10 PM | #4 |
Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
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The valves need to be adjusted every 6K miles.
Learn how to do it yourself: http://faq.ninja250.org/wiki/How_do_..._the_valves%3F
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Motofool .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
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July 20th, 2012, 03:59 PM | #5 |
Its not a 250,its a Ninja
Name: Shaun
Location: Little Rock, AR
Join Date: Jun 2012 Motorcycle(s): '12 Ninja Kaw, '22 CFMOTO 300NK Posts: 275
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^^^this. The valves are not hard to do, and definitely follow the ninja250 wiki. I only had to remove the coil on the right side of the bike because the cam chain took out too much room for me to work on the valves on that side. It says that opening up the valve clearances will increase noise, but in the case of the '04 bike I just got, it made a very noticeable DECREASE in noise. Also, most bike mechanics I have heard of will charge you a lot (read: too much) to adjust them.
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December 24th, 2012, 09:01 PM | #6 |
Freyho
Name: Alfredo
Location: Paramount, CA
Join Date: Dec 2012 Motorcycle(s): CBR600 f4i, 2007 Kawasaki Ninja 250 (sold) Posts: 182
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Gas engines need fuel (fuel/air), spark, and compression... If the spark and compression are fine, go to fuel/air. Look at things that may restrict gas flow. Since you've already taken care of the carbs I'd suggest looking at other parts of the fuel system. The petcock if rusted out can restrict gas flow or cut it off completely, a severely dirty fuel filter can also restrict gas flow. The gas itself if old can also cause problems.
If the petcock, fuel filter, gas lines, and the gas itself is fine, then i'd say it's on the lean mixture side. If not that, then dirty air filter restricting air flow. The valves will also play a large part as if they're severely out of adjustment it will cause running problems. |
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