Hey folks, I hope you can help me.
I have a 2004, 300 hrs old L120 that belches black smoke on throttle up. Too much fuel at idle, right? It runs fairly well at midrange and full throttle and at idle After watching umpteen you tube videos I have done the following: new air filter, two new ignition armatures, two new sparkplugs that light up the testers perfectly, a new carburetor (insuring correct throttle and choke alignment), valve lash adjusted properly.
To my knowledge, there is no mixture adjustment in these carburetors so I suppose everything is set correctly when bought new. It doesn't backfire as I would expect with an unburned mixture. So what do you think?
Why does my machine stutter then cough a cloud of black smoke when throttling from idle?
Thank you for your thoughts.
Jules
I have a 2004, 300 hrs old L120 that belches black smoke on throttle up. Too much fuel at idle, right? It runs fairly well at midrange and full throttle and at idle After watching umpteen you tube videos I have done the following: new air filter, two new ignition armatures, two new sparkplugs that light up the testers perfectly, a new carburetor (insuring correct throttle and choke alignment), valve lash adjusted properly.
To my knowledge, there is no mixture adjustment in these carburetors so I suppose everything is set correctly when bought new. It doesn't backfire as I would expect with an unburned mixture. So what do you think?
Why does my machine stutter then cough a cloud of black smoke when throttling from idle?
Thank you for your thoughts.
Jules