hondaheadache
New member
Hi, did a search through the posts hoping someone had a similar issue and fix but couldn't find anything.
My BF20 is run regularly, taken care of but has had issues with water in the fuel in the past. Carb has been cleaned a few times, put on a water separator filter, new tank, but have had persistent issues despite. Last week I installed a brand new carb assembly thinking it must be a the carb but unfortunately the problem persists.
BF20 manual choke and ignition
Context - starts first time always. Choke on for a minute then turn it off. Idles perfectly. Start to throttle and take off. Within 15-30 seconds...
Issue - outboard looses power. Runs rough. If I try to throttle it just hesitates then stalls. Oddly if I kill the engine and start it again it tends to run fine for another 15seconds them the issue occurs again. Kill the engine and start it again and it runs absolutely fine.
After a few rounds of the issue it will run really well. The only time the issue occurs again is when I'm fishing for maybe 20/30min and start the engine again. Occasionally the issues happens again when it's already warm, but not always. About 50/50.
It can't be the carb or the fuel. Both a A1. If it was the fuel pump wouldn't I have the issue all the time rather than when cold or restarting after a rest? Weirdest thing is how turning it off and on again actually helps... it's acting like a computer LOL
The only other thing I have noticed is that when I get the issue as it's warming up I usually get a bit off smoke come from the engine as it's loosing power. Not a huge amount and I never see the smoke if the issue occurs after a rest/when it's already been run.
Any suggestions would be great. Every mechanic I speak to just says fuel Nd carb issues but these aren't causing this. Many thanks
My BF20 is run regularly, taken care of but has had issues with water in the fuel in the past. Carb has been cleaned a few times, put on a water separator filter, new tank, but have had persistent issues despite. Last week I installed a brand new carb assembly thinking it must be a the carb but unfortunately the problem persists.
BF20 manual choke and ignition
Context - starts first time always. Choke on for a minute then turn it off. Idles perfectly. Start to throttle and take off. Within 15-30 seconds...
Issue - outboard looses power. Runs rough. If I try to throttle it just hesitates then stalls. Oddly if I kill the engine and start it again it tends to run fine for another 15seconds them the issue occurs again. Kill the engine and start it again and it runs absolutely fine.
After a few rounds of the issue it will run really well. The only time the issue occurs again is when I'm fishing for maybe 20/30min and start the engine again. Occasionally the issues happens again when it's already warm, but not always. About 50/50.
It can't be the carb or the fuel. Both a A1. If it was the fuel pump wouldn't I have the issue all the time rather than when cold or restarting after a rest? Weirdest thing is how turning it off and on again actually helps... it's acting like a computer LOL
The only other thing I have noticed is that when I get the issue as it's warming up I usually get a bit off smoke come from the engine as it's loosing power. Not a huge amount and I never see the smoke if the issue occurs after a rest/when it's already been run.
Any suggestions would be great. Every mechanic I speak to just says fuel Nd carb issues but these aren't causing this. Many thanks