March 24th, 2014, 08:44 AM | #1 |
ninjette.org member
Name: Drew
Location: Northern Virginia
Join Date: Apr 2013 Motorcycle(s): 2006 Ninja 250 Posts: 179
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2004 250 ninja help -- won't start
my buddy has a 2004 ninja 250 and it won't start -- he says battery is good, has drained fuel, change oil, spark plugs, cleaned and re jetted carbs, etc
We're stumped, what is the issue with this thing? It ran when he got it but was idling at 4k? (idle adjust valve didn't do much) then it stopped running and the trouble shooting began
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March 24th, 2014, 08:47 AM | #2 |
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
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The 3 biggin's... gas, air, spark. Where do you stand currently?
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March 24th, 2014, 09:00 AM | #3 |
ninjette.org member
Name: Drew
Location: Northern Virginia
Join Date: Apr 2013 Motorcycle(s): 2006 Ninja 250 Posts: 179
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i'm not sure what you're asking, fuel was drained and refueled, new spark, air should be fine?
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March 24th, 2014, 09:04 AM | #4 |
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
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Sorry, I am from the old school.
In KY, even if you put a new plug in, we still take the plug out, while still in the boot, we ground it out against the casing, turn it over and visually check for spark and ensure it gets wet from gas. Yea, air is simple (aside of vacuum), clean airbox and filter that is not clogged. If you have those 3 things, it should run in some form.
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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March 24th, 2014, 09:15 AM | #5 | |
ninjette.org member
Name: Drew
Location: Northern Virginia
Join Date: Apr 2013 Motorcycle(s): 2006 Ninja 250 Posts: 179
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Quote:
just really lost on this one lol..
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March 24th, 2014, 09:43 AM | #6 |
Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
MOTM - Jun '18, Oct '16
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If it ran, but idled at 4000, I'd start by looking at the carbs to make sure they are seated properly in the boots. If everything else is correct, a high idle or slowly dropping RPM usually points to a vacuum leak.
The next thing for me would be the carbs. Plenty of people have "cleaned" the carbs, but haven't done everything necessary to remove all of the deposits. Why did he rejet? I'd put the (cleaned) stock jets back in for now. Were the idle mixture screw covers removed? They should have been. Set them to 2 1/2 turns out. The carbs should be synced also. Try opening the throttle slightly when cranking, especially if you have been on full choke. Also try reducing the amount of choke. Others have added "new" gas that wasn't really that new... Check that the battery is fully charged at 12.6V. If you've done some cranking without charging it most likely will be lower. If the battery isn't that great it will give you problems also. I would give a good shot of staring fluid into the carbs while cranking to see if you get a sputter and pop, which would lead you to a fuel delivery issue. Looking at the plugs is also a good idea. Are they black or tan? Are they wet after cranking? |
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March 24th, 2014, 10:30 AM | #7 | |
ninjette.org member
Name: Drew
Location: Northern Virginia
Join Date: Apr 2013 Motorcycle(s): 2006 Ninja 250 Posts: 179
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Quote:
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