20 Most Recent 2006 Honda CBF 250 Questions & Answers

I have one of these and found it to be a weak cam chain tensioner and it was the same prob on my mates cbf250. I converted mine to a manual tensioner. Now it sounds lovely.
You can see what we did on www.bikesandtravels.co.uk in the repair and restoration section

frame or engine should be connected to negative on battery. therefore connect to the frame or engine and you have your earth. If you think the earth is faulty make a temporary connection from engine mount to battery negative to see if that works

Go to Yahoo.com and type in the manual you are looking for.

the only way i know of starting the bike by pushing it is to get up to 40mph

but before that is the battery fully charged? also i would drain the fuel tank and put in new fuel then check the spark plug is working by removing it from the engine and laying it on some metal and seeing if it sparks
if it still dosnt start then the carb needs a clean

hope this helps

John

Hopefully, by the description, it won't be too late.
Could be a loose pipe or even piston slap if the oil is old.

First check to make sure that both of the chokes are not sticking closed after the bike is warmed up. Also check if the throttle grip freeplay is comfortable (2--6 mm) when it sits in idling position. If both are fine then most probably the carburetor may need adjustment & should be left to a trained technician.

Here is the link to the service manual of CBF250. IT has all the diagrams of parts and adjustments and maintenance tips:--
cbf250manual

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yes red kill switch on right handle bar.

You have nearly answered your own question, if you have a dipstick, There should be a small mark on the lower end which will tell you not to go past

There are some older manuals for the CB250 but not your model. You should be able to get a guide from them. Most batteries are located under the seat. Have you checked? The Manuals are freebies.

http://www.carlsalter.com/motorcycle-manuals.asp

its most likley the battery if flat it may still turn the light on but there is no amps in it to turn the starter witch uses a lot of power to turn the engine over recharge the battery over night and try starting it again, or try using a good jump battery with good leads to start it, also check all the battery leads and joints for bad earths and bad joints it dont take much of a bad joint to stop it getting volts to start up on,

The disc clutch might be bad

Assuming that the normal tune up items have all been checked (valve adjustment, air filter, etc.) it sounds like it is running too lean. Check this by looking at the spark plug. Ideally, it should be light tan or brown in color. White indicates not enough fuel (too lean). Things that can cause this are: air leaks between the carburetor and engine, clogged fuel strainer in the petcock, float level too low, water or other sediments collected in the float bowl, modifications to the air filter box or exhaust system.
Drain the fuel from the float bowl into a clean container so you can see what has come out. If the fuel is free of moisture (water will clearly sit in the bottom of the container) and other junk, remove the float bowl (removing the carburetor from the bike first will make it much easier), check and adjust the float level.
If the above fails to solve the driveability problem, consider installing one size larger main jet in the carburetor, if available for your bike.

You could try bikebandit.com. They have things like this. Also try ebaymotors.com . If that doesn't work and you want to try something else, powersportseast.com Use the parts fische and look up your bike.

I would suggest a check up with someone who has knowledge of motorcycles for sure.