July 29th, 2018, 09:37 AM | #1 |
ninjette.org member
Name: John
Location: Massachusetts
Join Date: Jul 2018 Motorcycle(s): 07 Ninja EX250 , 2005 SV650, 2003SV1000 Posts: 11
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New To Me 2007 Ninja 250
Hey Guys, I recently picked up a 2007 Ninja 250 for my girlfriend to learn to ride on.
It doesn't run very well. It seems down on power. It doesn't spit or sputter at all, but it's slow to accelerate, even in nuetral it revs slow. Like probably takes 3 seconds to rev to 10k rpms, and then comes down slow. If your up past 7-8k rpms, and you pull the clutch in, if it gets down to like 2k rpms it would die. I took the fuel filter out, and it was crushed and bent. I ended up getting a replacement one (Briggs & Stratton Fuel Filter, 5098K SKU # 441374299). The bike doesn't seem to die and bog out if you pull in the clutch, but it's still really down on power. Like it tops out at 60/65 (WOT) and if you go up a hill it feels like it's losing power. The bike slows down to about 55mph. I figure next, I'll take the carbs off and spray all through them. How far do they have to be disassembled? I talked to the previous owner, it sat for 2 years before the guy I bought it from had it. He had he put conditioner in it, and the tanks looks perfect on the inside. Is there a carb rebuild tutorial? I assume there's a generic rebuild kit I can buy with all the gaskets, etc? I read something on some page about an airbox mod, to make the carb removal much quicker, but I can't seem to find it again. Can anyone point me in the direction of that? |
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July 29th, 2018, 12:01 PM | #2 |
ninjette.org certified postwhore
Name: Kerry
Location: Ventura, CA
Join Date: Jan 2016 Motorcycle(s): Ninja650 Posts: A lot.
MOTM - Apr '18, Apr '17, Apr '16
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Welcome! Search the threads, there are a lot of helpful posts here.
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July 29th, 2018, 04:13 PM | #3 |
ninjette.org member
Name: John
Location: Massachusetts
Join Date: Jul 2018 Motorcycle(s): 07 Ninja EX250 , 2005 SV650, 2003SV1000 Posts: 11
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July 29th, 2018, 05:21 PM | #4 |
ninjette.org certified postwhore
Name: Kerry
Location: Ventura, CA
Join Date: Jan 2016 Motorcycle(s): Ninja650 Posts: A lot.
MOTM - Apr '18, Apr '17, Apr '16
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There's a weird thing if the photo is hosted on an outside web site and something changes at that site. I don't think there's a good way to "bring them back" short of updating the original hosting site permissions or whatever. It's not you.
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July 29th, 2018, 06:11 PM | #5 |
ninjette.org member
Name: Aaron
Location: Tuc
Join Date: Jun 2018 Motorcycle(s): 2007 naked ex250 (bent frame; check your MOTOR MOUNTS), 1988 Ninjette black Posts: 14
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Caligurrl's is right, and I know how frustrating the internet can be (there's so much info, but where do you find it? Oh sweet ppl doing cool stuff, oh wait it's from ten years ago: archived/dead links); but here's a little piece on a modified air box..I find the rear fender to be my window of choice (which is mentioned on the video below as well).
https://youtu.be/s86bimD4ft0 |
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July 29th, 2018, 08:15 PM | #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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Here's some basic carb info to get you started - https://faq.ninja250.org/wiki/Intake
To get it to run right, you will need to do everything exactly correct. The carbs will need to be spotless internally, and adjusted properly. If you don't want to tackle it yourself, search "ducatiman" here. He's the go-to carb guy that can do it all. |
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July 30th, 2018, 07:43 AM | #7 |
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Name: -
Location: -
Join Date: May 2009 Motorcycle(s): - Posts: A lot.
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what jkv45 said.
if you want the carbs reset to original by somebody who truly knows how to do that, go with Gordon (ducatiman). when you're dealing with carbs that have an unknown history and weird problems it would probably be good to have them professionally refurbished. |
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July 30th, 2018, 08:02 AM | #8 | |||
ninjette.org member
Name: John
Location: Massachusetts
Join Date: Jul 2018 Motorcycle(s): 07 Ninja EX250 , 2005 SV650, 2003SV1000 Posts: 11
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July 30th, 2018, 10:26 AM | #9 | |
ninjette.org sage
Name: michael
Location: Central Georgia
Join Date: May 2013 Motorcycle(s): 2019 Ninja 400, Sold 2012 Ninja 650, Sold 2009 Ninja 250r, Sold 2007 DRZ400s Posts: 628
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I am in the same boat as you, and i've tried to half-ass it when i was younger and it just doesn't work. you have to go all the way, as they say. haha |
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July 30th, 2018, 10:56 AM | #10 | |
ninjette.org member
Name: John
Location: Massachusetts
Join Date: Jul 2018 Motorcycle(s): 07 Ninja EX250 , 2005 SV650, 2003SV1000 Posts: 11
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