Hello,
I have a Husqvarna 450, lightly used. It starts and run for a "short" while and then dies. Short being defined as 5 to 10 seconds. It idles a short time but once you touch the throttle it dies. I have replaced the carb, replaced the purge ball, gas filter, checked and/or replaced all the rubber hoses. Started the saw with the saw tank cap off, not easy I might add. I have checked the resistance on the coil and its good. I have spark. I have not checked the main seals for leaks, that is next but I am doing a lot prior to going there.
I put a spark plug light on the spark plug and then start the saw. I have spark. After all that I have done the saw still acts like it is flooding once to use the throttle. Just prior to stalling but still running the spark light goes off and the engine stalls. So this is my question - does my issue point to a fuel problem or an electrical problem? It is sort of like the chicken and the egg. What comes first gas not getting to the carb and the engine stops, or no spark from the coil and the engine stops. Gas or electrical, chicken or egg. Coils for this saw are easy to get and not that expensive but prior to making another purchase I thought I would come to my favor place for chainsaw enlightenment.
Now, I could be wrong all my entire line of thinking but I am ready for that. I have stopped crying so just break it to me gently.
Thanks in advance, Tony
I have a Husqvarna 450, lightly used. It starts and run for a "short" while and then dies. Short being defined as 5 to 10 seconds. It idles a short time but once you touch the throttle it dies. I have replaced the carb, replaced the purge ball, gas filter, checked and/or replaced all the rubber hoses. Started the saw with the saw tank cap off, not easy I might add. I have checked the resistance on the coil and its good. I have spark. I have not checked the main seals for leaks, that is next but I am doing a lot prior to going there.
I put a spark plug light on the spark plug and then start the saw. I have spark. After all that I have done the saw still acts like it is flooding once to use the throttle. Just prior to stalling but still running the spark light goes off and the engine stalls. So this is my question - does my issue point to a fuel problem or an electrical problem? It is sort of like the chicken and the egg. What comes first gas not getting to the carb and the engine stops, or no spark from the coil and the engine stops. Gas or electrical, chicken or egg. Coils for this saw are easy to get and not that expensive but prior to making another purchase I thought I would come to my favor place for chainsaw enlightenment.
Now, I could be wrong all my entire line of thinking but I am ready for that. I have stopped crying so just break it to me gently.
Thanks in advance, Tony