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05-08-2011, 12:19 AM
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#1 |
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Adventurer
Joined: Jan 2011
Location: Iowa City, IA
Oddometer: 70
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Ninja 250 Firing One Cylinder
Only Firing One Cylinder
My bike was running perfect today, it was the first 80 degree day we've had. Tonight I tried to start it, and needed quite a bit of choke. Started up fine, and I drove it the 100 or so yards to the front door to pick up my girlfriend. As I drove off with her on the back, i noticed a lot of hesitation as I let the clutch out, then the power surged at about 5 k and then I shifted, and lost the power again. It was running a little weird, but I was only going like 3 blocks. I pulled off to the side of the road, and the bike died when i turned the choke off. I got it running again, under fill choke, and noticed that the right header was cold. Did a quick check that the plug wires were still connected, and limped it the 2 blocks home. I noticed the cylinder did fire for a second or two, but then would die again. Took significant throttle to keep the bike running. What should I look at when I look into this tomorrow? Any easy solutions? The spark plugs are less than 2k miles old, but those are going to be the first thing I check. What else? thanks.
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2004 Z1000 |
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05-08-2011, 03:01 AM
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#2 |
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Intermittent Excursionist
Joined: Feb 2009
Location: Cape Cod, MA
Oddometer: 98
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ninja 250 is only one cylinder engine. Clean the carb
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"Like all great travellers, I have seen more than I remember, and remember more than I have seen."
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05-08-2011, 05:20 AM
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#3 |
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Gnarly Adventurer
Joined: Dec 2009
Location: NE of New Paris, WI
Oddometer: 325
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The ex250 is a 125 when running on one cyl.
Check the basics first: Good battery Spark Fuel (fresh) Compression Vacuum leaks Air leaks in airbox Then clean the carbs. You might get lucky with Seafoam but nothing beats a good teardown carb cleaning. TDC
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I wear a helmet in public! Yeah! GS850GLX DR350SE |
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05-08-2011, 05:36 AM
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#4 | |
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KLR = Trials bike?
Joined: Mar 2010
Location: Redwood City, CA
Oddometer: 531
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Quote:
 It is a parallel twin.
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Only have a Concours 14 after riding to California from Maine. Need to find a place to ride with knobbies. Need to get a bike with knobbies. SIG: HUP |
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05-08-2011, 06:43 AM
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#5 | |
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Rides slow bike slow
Joined: Aug 2008
Location: New(er) Mexico
Oddometer: 9,774
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Quote:
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You couldn't hear a dump truck driving through a nitro glycerin plant!Badasses might screw with another badass. Nobody screws with a nut job. -- Plaka |
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05-08-2011, 07:10 AM
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#6 | |
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Hookers, my lad.
Joined: May 2008
Location: Richmond, Va
Oddometer: 6,237
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Quote:
 Pour some carb cleaner fuel addative in the gas tank, and run it a bit. Sometimes the carb gets a little gummed from sitting, but a $1 bottle of this (you'll only need half a bottle for the tank) will probably sort out all your problems simply. At least, it works great for my Ninja 250. 
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"I'm half afraid Skippii's bike might actually be a giant hamster ball that he somehow powers around. With ape hangers." -GailCallsMeKarl |
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05-08-2011, 10:03 PM
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#7 |
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Adventurer
Joined: Jan 2011
Location: Iowa City, IA
Oddometer: 70
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I needed to switch to my reserve tank.
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2004 Z1000 |
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05-09-2011, 11:20 AM
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#8 | |
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Hookers, my lad.
Joined: May 2008
Location: Richmond, Va
Oddometer: 6,237
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Quote:
__________________
"I'm half afraid Skippii's bike might actually be a giant hamster ball that he somehow powers around. With ape hangers." -GailCallsMeKarl |
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05-09-2011, 02:19 PM
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#9 | |
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Gnarly Adventurer
Joined: Dec 2009
Location: NE of New Paris, WI
Oddometer: 325
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Quote:
TDC
__________________
I wear a helmet in public! Yeah! GS850GLX DR350SE |
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05-09-2011, 05:02 PM
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#10 | |
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Adventurer
Joined: Jan 2011
Location: Iowa City, IA
Oddometer: 70
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Quote:
there's only one....
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2004 Z1000 |
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05-09-2011, 09:48 PM
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#11 |
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Hookers, my lad.
Joined: May 2008
Location: Richmond, Va
Oddometer: 6,237
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I wasn't serious...
__________________
"I'm half afraid Skippii's bike might actually be a giant hamster ball that he somehow powers around. With ape hangers." -GailCallsMeKarl |
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05-10-2011, 05:15 PM
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#12 |
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Adventurer
Joined: Dec 2010
Location: grand rapids michigan
Oddometer: 43
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ninja 250 carb sinc
Would you know where to connect a vacuum sinc to this bike? friend has one and it has unstabile idle and what I think is weak acceleration!
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05-10-2011, 05:48 PM
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#13 | |
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Rides slow bike slow
Joined: Aug 2008
Location: New(er) Mexico
Oddometer: 9,774
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Quote:
__________________
You couldn't hear a dump truck driving through a nitro glycerin plant!Badasses might screw with another badass. Nobody screws with a nut job. -- Plaka |
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05-10-2011, 06:16 PM
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#14 |
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Adventurer
Joined: Dec 2010
Location: grand rapids michigan
Oddometer: 43
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thanks
Do I need to plug those lines when testing?
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05-10-2011, 06:48 PM
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#15 | |
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Rides slow bike slow
Joined: Aug 2008
Location: New(er) Mexico
Oddometer: 9,774
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Quote:
The lines you remove from the nipples? No. Keep in mind if you are doing this with the tank still mounted (if you have a special right angle screwdriver) you only have the fuel in the carb bowls to use because with no vacuum to the petcock, you'll get no fuel.
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You couldn't hear a dump truck driving through a nitro glycerin plant!Badasses might screw with another badass. Nobody screws with a nut job. -- Plaka |
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