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November 9th, 2016, 12:46 PM
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#1 |
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ninjette.org newbie
Name: Bobbi
Location: Phoenix
Join Date: Nov 2016 Motorcycle(s): 2008 Ninja 250 Posts: 8
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The sound of engine?
Hey guys i was just wondering if my ninja has some problems? When i have it in neutral is it suppose to rev alittle or go up and down?
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November 9th, 2016, 12:49 PM
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#2 |
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The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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No, but sub 500 rpm range changes are somewhat normal, you kinda have to trust your gut when it's very tiny changes in rpm values. If it idles up and down more than that then something is up. It's not getting a consistent stream of air/fuel mix is the most likely case.
__________________________________________________
Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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November 9th, 2016, 12:59 PM
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#3 |
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Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
MOTM - Jun '18, Oct '16
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Doesn't sound like anything to worry about, but it probably could use some fine mixture adjustments.
From the factory they are set-up lean at idle, and that can make the RPMs fluctuate. There are adjustments on the carbs, but there are caps that cover the adjustment screws. The carbs need to be off to remove the caps, so it's not easy to make adjustments if they haven't. Colder temps will make the engine run leaner, as will gas with ethanol. If you can get gas without ethanol it would be worth a try to see if it runs (idles) any better. If temps are fluctuating and the tank is not very full, you can also form condensation in the tank that will make the engine run poorly at times. |
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November 9th, 2016, 01:49 PM
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#4 |
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ninjette.org newbie
Name: Bobbi
Location: Phoenix
Join Date: Nov 2016 Motorcycle(s): 2008 Ninja 250 Posts: 8
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Good to know thanks so much!�� ima check it out. An get an inspection
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