Bike turns off at startup

sunspots · July 5th, 2013, 06:27 PM

Hey guys, so I picked up my 250 less than a week ago and I've had this issue twice. (I'm completely new to riding)

So I'll put my key in the ignition, flip the switch on and press the start button.
The bike will start like normal but then when I try to rev it up while its still in neutral, the engine just cuts off.

I feel like I'm doing something wrong here.

Can someone give me their take on it.

Edit: Also other times I start it, it starts up just fine and I am able to ride it with no problems.

csmith12 · July 5th, 2013, 06:36 PM

Let's assume everything is fine first. To start the bike, pull the choke and start it up. Let it run until the idle revs up (normally around 3k rpm), then push the choke back. The idle should return to 1200-1700. Proceed riding only when the bike will accept throttle input without dying. Overall process takes about 1-2 minutes.

EDIT: On a hot day or if the bike is still warm from a previous ride, you may not need to use the choke. You will know because as soon as you start the bike, it will instantly rev to around 3k prm.

Assuming something is up.
I just fixed this problem on a bike today. Has the bike been sitting around for a long time? If so, your gunna have to clean the carbs and ensure the airbox and filter clean too.

sunspots · July 5th, 2013, 06:42 PM

Are you always supposed to use the choke to start up the bike? (This is my first time hearing about this, sorry about my noobiness)

I'll take a look at the airbox and carbs in the morning.

Thanks csmith.

csmith12 · July 5th, 2013, 06:46 PM

Quote:

Originally Posted by sunspots

Are you always supposed to use the choke to start up the bike? (This is my first time hearing about this, sorry about my noobiness)

In case you missed my edit.

Quote:

Originally Posted by csmith12

EDIT: On a hot day or if the bike is still warm from a previous ride, you may not need to use the choke. You will know because as soon as you start the bike, it will instantly rev to around 3k prm.

Also, cleaning the carbs is a pretty invasive task on the lil ninjas but is easy if you take your time. It's best to have some help from a friend your first time.

Motofool · July 5th, 2013, 07:20 PM

Quote:

Originally Posted by sunspots

Are you always supposed to use the choke to start up the bike?.....

Each time that you start up a cold engine:

http://faq.ninja250.org/wiki/What_is..._at_startup%3F

rojoracing53 · July 5th, 2013, 07:44 PM

Quote:

Originally Posted by sunspots

Are you always supposed to use the choke to start up the bike? (This is my first time hearing about this, sorry about my noobiness)

I'll take a look at the airbox and carbs in the morning.

Thanks csmith.

On most you do but some you never need it, mine never needs it.

July 5th, 2013, 06:27 PM	#1
sunspots ninjette.org member Name: Sunspots Location: Austin, TX Join Date: Jun 2013 Motorcycle(s): 08 Plasma Blue 250 Posts: 56	Bike turns off at startup Hey guys, so I picked up my 250 less than a week ago and I've had this issue twice. (I'm completely new to riding) So I'll put my key in the ignition, flip the switch on and press the start button. The bike will start like normal but then when I try to rev it up while its still in neutral, the engine just cuts off. I feel like I'm doing something wrong here. Can someone give me their take on it. Edit: Also other times I start it, it starts up just fine and I am able to ride it with no problems.

July 5th, 2013, 06:36 PM	#2
csmith12 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	Let's assume everything is fine first. To start the bike, pull the choke and start it up. Let it run until the idle revs up (normally around 3k rpm), then push the choke back. The idle should return to 1200-1700. Proceed riding only when the bike will accept throttle input without dying. Overall process takes about 1-2 minutes. EDIT: On a hot day or if the bike is still warm from a previous ride, you may not need to use the choke. You will know because as soon as you start the bike, it will instantly rev to around 3k prm. Assuming something is up. I just fixed this problem on a bike today. Has the bike been sitting around for a long time? If so, your gunna have to clean the carbs and ensure the airbox and filter clean too. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School
	1 out of 1 members found this post helpful.

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July 5th, 2013, 06:42 PM	#3
sunspots ninjette.org member Name: Sunspots Location: Austin, TX Join Date: Jun 2013 Motorcycle(s): 08 Plasma Blue 250 Posts: 56	Are you always supposed to use the choke to start up the bike? (This is my first time hearing about this, sorry about my noobiness) I'll take a look at the airbox and carbs in the morning. Thanks csmith.