250R dying

tsmith3605 · August 14th, 2013, 01:18 PM

My son has been having a problem with his 2009 250R. Within a mile after first starting it, it will start to bog out at speed and then just shut down. He said he needs to sit awhile and then turn the ignition for about 1 minute until it will turn over again. After this it runs ok and does not shut down again. Any ideas why this would happen within 1 mile of starting his ride?

Alex · August 14th, 2013, 01:24 PM

Is he starting it with the choke? How long is he riding with the choke on before he is able to turn it all the way off?

One possibility is that the fuel flow is slowed due to bad venting in the fuel tank (usually a crimped vent line). But if it works after a minute and then doesn't crop up again, sounds more like an issue with warming the bike up at first. The bikes typically don't need much if any warmup time while it is stopped, but if you do ride off right after starting, they often require some choke for the first few minutes to run smoothly until they do warm up a bit.

tsmith3605 · August 14th, 2013, 01:33 PM

Quote:

Originally Posted by Alex

Is he starting it with the choke? How long is he riding with the choke on before he is able to turn it all the way off?

One possibility is that the fuel flow is slowed due to bad venting in the fuel tank (usually a crimped vent line). But if it works after a minute and then doesn't crop up again, sounds more like an issue with warming the bike up at first. The bikes typically don't need much if any warmup time while it is stopped, but if you do ride off right after starting, they often require some choke for the first few minutes to run smoothly until they do warm up a bit.

I just asked him and he did fail to tell me that he is starting it without the choke and riding right off without warmup. Do you recommend he actually start riding with the choke on for awhile then gradually turn the choke off while riding?

Alex · August 14th, 2013, 01:34 PM

Yup. Keep the choke fully on while riding away, then smoothly move it all the way to off within a few miles as long as the engine feels fine. Usually that's within a minute or two.

tsmith3605 · August 14th, 2013, 01:35 PM

Quote:

Originally Posted by Alex

Yup. Keep the choke fully on while riding away, then smoothly move it all the way to off within a few miles as long as the engine feels fine. Usually that's within a minute or two.

Ok ,great I will let him know. Thanks so much for the fast reply and the help.

August 14th, 2013, 01:18 PM	#1
tsmith3605 ninjette.org newbie Name: Troy Location: Kutztown Join Date: Feb 2013 Motorcycle(s): 2009 ninja 250r 2002 sv650 Posts: 8	250R dying My son has been having a problem with his 2009 250R. Within a mile after first starting it, it will start to bog out at speed and then just shut down. He said he needs to sit awhile and then turn the ignition for about 1 minute until it will turn over again. After this it runs ok and does not shut down again. Any ideas why this would happen within 1 mile of starting his ride?

August 14th, 2013, 01:24 PM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Is he starting it with the choke? How long is he riding with the choke on before he is able to turn it all the way off? One possibility is that the fuel flow is slowed due to bad venting in the fuel tank (usually a crimped vent line). But if it works after a minute and then doesn't crop up again, sounds more like an issue with warming the bike up at first. The bikes typically don't need much if any warmup time while it is stopped, but if you do ride off right after starting, they often require some choke for the first few minutes to run smoothly until they do warm up a bit. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

August 14th, 2013, 01:34 PM	#4
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Yup. Keep the choke fully on while riding away, then smoothly move it all the way to off within a few miles as long as the engine feels fine. Usually that's within a minute or two. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

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