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Discussion Starter · #1 ·
guys i've bought new a battery , changed the spark plugs , replaced the fuel , clean the carbies and it refuses to start...WTF IS THE PROBLEM it's annoying me now

HELP pleaseee
 

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oliver said:
guys i've bought new a battery , changed the spark plugs , replaced the fuel , clean the carbies and it refuses to start...WTF IS THE PROBLEM it's annoying me now

HELP pleaseee
Are the plugs wet if you take them out after trying to start? (I assume it's at least turning over)

Is there a spark from the plugs?

Is there air getting in? (Hows the air filter?)
 

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Firstly, have you tried all of this: http://cbr250.com/forum/thread-60.html?highlight=bike+wont+start

Also, just to ask the glaringly obvious, did you charge the battery?
 

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does the engine turn over when you press the starter button?
 

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What did you replace the fuel with? Kerosene doesnt work you know :D
 

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Discussion Starter · #6 ·
going to go in order lol

the plugs aren't wet no , and yes there is a spark . how do i check if air is going through and also the air filter seems abit dirty/old .

yes i have charged the battery .

the engine does turn over when i press the starter button

and lastly i replaced the fuel with normal unleaded from mobil .

thanks for commenting guys , still clueless =(
 

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take the tank off and spray some "start ya bastard" in the carbs and see if she starts...

you'll need to pour fuel in the carbs too coz it's a diaphragm design which means there'll need to be some suction going to the tank in order for fuel to flow out...
 

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Discussion Starter · #15 ·
well , bro crashed it a few years back . being lying around for awhile so i decided to make it my new project . got it started a couple of weeks ago for 2-3 days then died after that , no idea what's going on
 

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How thorough was your carby cleaning? did you blow compressed air through all the jets? and are the carby rubber boots in good condition and correctly seated. You may need to replace all the seals depending on condition. post up some photos.
 

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Basically, in order for the engine to run, you need three things: spark, fuel, and air. You've eliminated spark as the problem, so now you are looking at fuel and air. Let's talk air....you say that your air filter looks dirty, so take the air filter off and see if that cures your problem. I'm assuming that you did not mess with the carb adjustment screws since it last ran, yes? If the air filter removal does not solve the problem, then you're looking at getting fuel to/through your carbs and/or a re-recleaning of your carbs.
 

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Discussion Starter · #18 ·
Ride2Fast said:
Basically, in order for the engine to run, you need three things: spark, fuel, and air. You've eliminated spark as the problem, so now you are looking at fuel and air. Let's talk air....you say that your air filter looks dirty, so take the air filter off and see if that cures your problem. I'm assuming that you did not mess with the carb adjustment screws since it last ran, yes? If the air filter removal does not solve the problem, then you're looking at getting fuel to/through your carbs and/or a re-recleaning of your carbs.
thanks alot , i'll check that out now .
 
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