20 Most Recent 2004 kawasaki Ninja 250R Questions & Answers

You will have to be more specific on what you have done to isolate the problem. How do you have engine oil leaking and being drawn into the intake? Where is the leak, because you can obviously see it, so how is it migrating to the inlet? Have you done any work on it recently whereby you could have refitted something incorrectly. The most likely thing is a breather hose that is causing the engine to vent the oil from somewhere. If the airbox and all the inlet parts are as they should be then where is the oil entering the inlet? Go through the various hoses large and small and make sure they are properly connected. One obvious thought is; Is the engine oil level correct as per the handbook? Have you added a bit extra"for luck" ? There isn't a great deal of oil in it in the first place so it wouldn't take much to overfill. Overfilling can cause seals/gaskets to blow etc. In worst cases it can break the piston rings. Clean the engine with detergent, start up, don't rev it above fast idle and see where and how quickly the oil appears. If its entering the airbox and being sucked into the engine then you need specialist help or a good DIY biker. You don't actually say if its running OK?? Careful diagnosis and logical thinking will get to the bottom of this. Don't spend a penny on parts yet, because you're going to look silly if its only something you refitted wrongly.

Mitch, you may find one online but if you own a bike like this why not spring $20 or less for a workshop manual?

Question edited for clarity and maker. Question moved from 'Power Motorcycles' to model category. It could be. A diode is an electrical component that only allows power to travel in one direction. When they fail, there is no power in any direction. You can test it with a multimeter. It will pass Ohms one way, but not the other if it is working.

rough sound in engine

If it is made different, then you got the wrong part. There can also be changes in electrical items in mid year production. Unfortunately, most electrical parts are not returnable. I suggest you take the part number for the part you got and look it up on the internet or go to your local dealer. OEM is the way to go. Good luck.

Hey Anon, remove the battery, have it's CCA's - ( Cold Cranking Amps ) checked... this is the only true measure of a batteries health. O'Reilly's, Auto Zone, Advance Auto can check it..they will tell you if its good or not. Install new (recommended) spark plugs.. Next, its time to make sure the injectors are getting fuel,,..make sure the petcock is letting fuel through.. DO NOT put "additives" in it...make sure the injectors are passing fuel..(fuel pressure) It might be time for a trip to a qualified professional to double check the injectors.. An internal combustion engine requires 3 things to run: 1. A properly timed spark 2. Adequate compression >120PSI 3. A proper fuel/air ratio one - or more - is not working.. eliminate one by one..

http://mototh.com/files/kawasaki/Ninja_250R/Kawasaki_Ninja_250R_FI-English.pdf

Did you check if your clutch lever cable is loose?

The service manual is different depending on the year of your 250R. Which year is it? Here's a sample 250R service manual: http://mototh.com/files/kawasaki/Ninja_250R/Kawasaki_Ninja_250R_FI-English.pdf

remove screen and any surrounding plastics unscrew the 4 screws holding fairing to headlamp

check the wire of the electric starter

i had the same problem but now i have not power any where checked fuses all good there even starter fuse

its on the neck of the bike

Bad ground or electric connection, or bad starter (solenoid).

Usually close to the starter motor, sometimes even on it.

The only way to make the stock exhaust louder is by compromising it. This would entail some degree of removing or damaging, or drilling out the baffle.