ninjette.org - View Single Post - Idleing too high and slow acceleration problem

Arkangel1200 · April 3rd, 2015, 05:08 PM

So I have a 2008 ninja 250 (duh) but my bike has almost 50,000 miles on it. It has a K&N air intake, a two brothers carbon slip on. The bike seems to be idling weird. I set the idle after warm-up to about 1250rpms. But when riding it idles up above 3,000-4,000. Only sometimes though. Sometimes it doesn't. I have the air filter in and the slip on installed but I don't believe it's tuned with them on. So is that the issue. And will this problem of it not being tuned make me get bad gas mileage? I drove 1,380 miles straight from california to texas. And my average gas mileage was 45mpg. Which is pretty bad for a 250 if you ask me. That's cruizing at around 80-85mph. With being all freeway riding I was expecting at least 65mpg.

April 3rd, 2015, 05:08 PM	#1
Arkangel1200 I go fast Name: Zack Location: Banning, CA Join Date: Apr 2015 Motorcycle(s): 2008 Kawasaki Ninja 250r Posts: 2	Idleing too high and slow acceleration problem So I have a 2008 ninja 250 (duh) but my bike has almost 50,000 miles on it. It has a K&N air intake, a two brothers carbon slip on. The bike seems to be idling weird. I set the idle after warm-up to about 1250rpms. But when riding it idles up above 3,000-4,000. Only sometimes though. Sometimes it doesn't. I have the air filter in and the slip on installed but I don't believe it's tuned with them on. So is that the issue. And will this problem of it not being tuned make me get bad gas mileage? I drove 1,380 miles straight from california to texas. And my average gas mileage was 45mpg. Which is pretty bad for a 250 if you ask me. That's cruizing at around 80-85mph. With being all freeway riding I was expecting at least 65mpg.