Hello,
I recently joined the forum to help track down my issue. I have a Honda BF130 (4 cycle) that is giving me an interesting issue. Starting up and running at low to moderate speeds, and even about 75% throttle my outboard runs great. But it seems to be after about right at the 1-2hr mark (and almost ALWAYS after a full throttle run) it immediately starts misfiring and surging. At idle the boat misfires and shakes the outboard while doing this. When pushing the throttle RPM goes up slightly but there is hesitation and its almost like it wants to die to you have to back off (almost like you are bogging it). It will continue to idle and work in low RPM while misfiring. After it did this the first time i put a new set of spark plugs in it and it was like the issue never happened (on the ears) and confirmed after the plugs on the water this week until it did it again same exact timing and situation.
I recently have:
*Changed the plugs (Issue now back so ordered another set)
*Changed the oil
*Changed the fuel filter
*Completely emptied tank and put brand new premium in it
*Checked thermostat to make sure it was opening and not stuck
*Changed the water pump at the end of last season, stream is fine (about new hours on pump)
After i put the plugs in the first time it fired up instantly no problems. Second set on the way to see if it solves the issue. At this point thinking it might be a fueling issue
Pics of the plugs attached. Any help or test would be great.
I recently joined the forum to help track down my issue. I have a Honda BF130 (4 cycle) that is giving me an interesting issue. Starting up and running at low to moderate speeds, and even about 75% throttle my outboard runs great. But it seems to be after about right at the 1-2hr mark (and almost ALWAYS after a full throttle run) it immediately starts misfiring and surging. At idle the boat misfires and shakes the outboard while doing this. When pushing the throttle RPM goes up slightly but there is hesitation and its almost like it wants to die to you have to back off (almost like you are bogging it). It will continue to idle and work in low RPM while misfiring. After it did this the first time i put a new set of spark plugs in it and it was like the issue never happened (on the ears) and confirmed after the plugs on the water this week until it did it again same exact timing and situation.
I recently have:
*Changed the plugs (Issue now back so ordered another set)
*Changed the oil
*Changed the fuel filter
*Completely emptied tank and put brand new premium in it
*Checked thermostat to make sure it was opening and not stuck
*Changed the water pump at the end of last season, stream is fine (about new hours on pump)
After i put the plugs in the first time it fired up instantly no problems. Second set on the way to see if it solves the issue. At this point thinking it might be a fueling issue
Pics of the plugs attached. Any help or test would be great.