Question about 2002 Honda CR 125 R

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Non runner with a new spark plug my cr125 will start but by the time i start to rev the throtle it just dies out .when i remove the plug its covered in fuel .does anyone ha any suggestions plz

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  • joe May 11, 2010

    is the choke ON or OFF when you try to rev the throttle?

    is the bike warmed up when you try to rev the throttle?

    if you let it just idle, will it continue to run as long as you don't touch the throttle?

    any fuel leaking out of the overflow tube onto the ground?


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Go to and look up jetting charts for your bike find the best settings for your environment and riding and try those settings and see if the bike runs better
Note: jetting a 2 stroke is all trial and error and you probably go through quite a few spark plug before you get it locked in but once your jetting is just right it pretty much problem free (but you still have to do basic manteince though it that problem free - sorry) ;) oh one last thing if you DON'T have a service manual for your bike GET ONE!! because your going to need it

Posted on Apr 06, 2013

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There's a couple things you can try, firstly make sure you've got the fuel to oil mix correct as too much oil in with the fuel is one of the most common reasons for this and also try a standard plug rather than a race plug as these can handle the oily residue a bit better. i would guess at the mix being around 40;1 but check with a honda dealer first. hope this helps

Posted on Mar 03, 2009

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