Ninja 250 slow throttle response? - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 18 (permalink) Old 06-14-2007, 08:07 AM Thread Starter
 
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Ninja 250 slow throttle response?

Is it normal to have slow throttle response on these bikes? When I rev it up it almost seems to hesitate before kicking in. Also when I let go of the throttle it seems to hesitate on the way back down. I am going to clean the cables and spray some grease on them to see if that will help. Any other suggestions?

Thanks!
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post #2 of 18 (permalink) Old 06-14-2007, 08:26 AM
 
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How old is the bike? May need to clean/rebuild the carbs.
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post #3 of 18 (permalink) Old 06-14-2007, 09:09 AM Thread Starter
 
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How old is the bike? May need to clean/rebuild the carbs.
It is a 2000.

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post #4 of 18 (permalink) Old 06-14-2007, 10:27 AM
 
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Yea, probably hasn't had the carbs rebuilt its whole life and their probly full of gunk by now, I'd start with a basic cleaning of them see if that helps any with throttle response.
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post #5 of 18 (permalink) Old 06-14-2007, 01:05 PM
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It won't be as responsive as a FI bike, or most of the larger cc sport bikes, just the nature of the beast.

But yeah, cleaning the carbs won't hurt anything.

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post #6 of 18 (permalink) Old 06-14-2007, 01:13 PM
 
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A multitude of things make the throttle response like that. ASSuming that the carb is clean and the throttle cable is properly adjusted (my niece's Ninjette is because my guru went through it with a toothcomb), there will be some glitches like that. You're not riding a designed & engineered 2007 bike, the darn thing is fifteen years old in design, not to mention that it's cheaply made.

I took the Ninjette out for a romp last night it was pretty darn fun.
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post #7 of 18 (permalink) Old 06-14-2007, 01:28 PM Thread Starter
 
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Thanks everyone!
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post #8 of 18 (permalink) Old 06-14-2007, 01:54 PM
 
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I wouldnt say my ninja is as responsive as a newer bike but I don't find it to lag too much more.

clean the carbs, its not too hard and there is a guide on ninja250.org I think.
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post #9 of 18 (permalink) Old 06-14-2007, 11:20 PM
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milage?

I am thinking clogged up and gummy carbs. Get them cleaned up and sync'ed.




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post #10 of 18 (permalink) Old 06-14-2007, 11:20 PM
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And did you check the plugs... I would go there first.




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post #11 of 18 (permalink) Old 06-14-2007, 11:37 PM
 
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milage?

I am thinking clogged up and gummy carbs. Get them cleaned up and sync'ed.
Mileage wouldn't matter to much anyways, if its high then it could be clogged from all the miles of travel or if its low it probly has sat and built up gunk. Either way the bike is a few years old probly needs them rebuilt in the near future. But start with just cleaning them see how much that improves it.
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post #12 of 18 (permalink) Old 06-14-2007, 11:51 PM
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Well that is true!!




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post #13 of 18 (permalink) Old 06-15-2007, 12:34 AM
 
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one other thing to check that I dont see mentioned, if you have one on the fuel line, replace your fuel filter, or install one. you should do this anyways. beyond that, clean and synch your carbs as everyone else suggests. a good carb clean and synch plus fresh fuel filter never hurt ANY bike.
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post #14 of 18 (permalink) Old 06-15-2007, 06:15 AM Thread Starter
 
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And did you check the plugs... I would go there first.
It has 13,000 miles

Yeah, I chaged the plugs already.

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post #15 of 18 (permalink) Old 06-15-2007, 06:16 AM Thread Starter
 
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one other thing to check that I dont see mentioned, if you have one on the fuel line, replace your fuel filter, or install one. you should do this anyways. beyond that, clean and synch your carbs as everyone else suggests. a good carb clean and synch plus fresh fuel filter never hurt ANY bike.
Funny you mention this because it doesn't have a fuel filter but I bought one last night and will install it this weekend.

Bob
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post #16 of 18 (permalink) Old 06-15-2007, 10:09 PM
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Be carefull with some fuel filters... not all are equal. They can vapor lock and/or cause your bike to lean out.

My best suggestion is to get this whole problem figured out before you add in the filter.

Never..never, start one project before finishing first project or problem. otherwise you don't know if you now have 2 problems or still the original problem.




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post #17 of 18 (permalink) Old 06-16-2007, 03:45 AM
 
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definately right Gas Man. whats more, by adding the filter, you COULD potentially be compounding your issues and making the problem even worse yet, which doesnt help at ALL.

best advice I can give, take your time and do the job the right way the FIRST time you do it. then you dont have to do it again.
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post #18 of 18 (permalink) Old 06-16-2007, 01:32 PM
 
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It won't be as responsive as a FI bike, or most of the larger cc sport bikes, just the nature of the beast.

But yeah, cleaning the carbs won't hurt anything.
FYI, carbs are just as responsive as FI.

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