Loss of power?

oblivion007 · June 4th, 2011, 07:31 PM

I'm not sure but it seems my little ninja has lost some power.

It takes longer to rev it up through the gears. I'll take it to 6krpm in 1st, then 8k after the following gears by ear and when upshifting it would start at 7k usually. The time between 7k --> 8k has gotten significantly longer.

Its a 2011 ninja, chain clean/lubed every 300 miles, just changed oil form 10-40 to 20-50 Kawasaki oil because of the temperatures here. It happened after the oil change and well I'm not sure if its the oil, or maybe just the new air in the city that's taking away from performance.

Any ideas on this?

e:\ so I found the list of similar threads right below and after going through some of them one thing in common was that maybe my bike is running too lean or the opposite? A couple of weeks back I had a piece of rubber fall in there that came from the gas tank rubber seal (extra rubber I think it was).

Also first 2 weeks of riding my bike I checked the air filter and it was pretty gunky because of all the stuff in the air. Maybe its dirtied up again? I'll check soon enough.

almost40 · June 4th, 2011, 07:58 PM

Hot and humid air makes less power than cooler dense air. Sounds normal to me.

oblivion007 · June 4th, 2011, 08:07 PM

How much power because it just seems to me its a very considerable amount of power. I feel crippled. I'd like to find some other ninjettes in my city and see if they have the same problem to rule the weather out.

June 4th, 2011, 07:31 PM	#1
oblivion007 "scandal!" Name: Adan Location: Somewhere Join Date: May 2011 Motorcycle(s): 2011 250R(Crashed 2/26/2014), 09 ER6n Posts: 660	Loss of power? I'm not sure but it seems my little ninja has lost some power. It takes longer to rev it up through the gears. I'll take it to 6krpm in 1st, then 8k after the following gears by ear and when upshifting it would start at 7k usually. The time between 7k --> 8k has gotten significantly longer. Its a 2011 ninja, chain clean/lubed every 300 miles, just changed oil form 10-40 to 20-50 Kawasaki oil because of the temperatures here. It happened after the oil change and well I'm not sure if its the oil, or maybe just the new air in the city that's taking away from performance. Any ideas on this? e:\ so I found the list of similar threads right below and after going through some of them one thing in common was that maybe my bike is running too lean or the opposite? A couple of weeks back I had a piece of rubber fall in there that came from the gas tank rubber seal (extra rubber I think it was). Also first 2 weeks of riding my bike I checked the air filter and it was pretty gunky because of all the stuff in the air. Maybe its dirtied up again? I'll check soon enough. Last futzed with by oblivion007; June 4th, 2011 at 08:05 PM. Reason: Found similar threads.

June 4th, 2011, 07:58 PM	#2
almost40 ninjette.org Monkey Spank Name: Kevin Location: Illinois Join Date: Apr 2009 Motorcycle(s): 2008 250R Track-Bike Woodcraft clip-ons and rearsets FZ-6 track bike Posts: A lot.	Hot and humid air makes less power than cooler dense air. Sounds normal to me. __________________________________________________ Black 250R Full Area P QC Dyno Jet Kit 100 main 41T Rear Sprocket

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June 4th, 2011, 08:07 PM	#3
oblivion007 "scandal!" Name: Adan Location: Somewhere Join Date: May 2011 Motorcycle(s): 2011 250R(Crashed 2/26/2014), 09 ER6n Posts: 660	How much power because it just seems to me its a very considerable amount of power. I feel crippled. I'd like to find some other ninjettes in my city and see if they have the same problem to rule the weather out.