Hoping for a little direction/help on my motor issue. Ill try to keep it quick.2004 honda BF150
~1000hrs
up until this summer she pretty much ran perfectly for her age. Over the summer I ended up with a thermostat cover leak which through horrible engineering design, gets water into the air intake. Unfortunately I drove it for a few days in the keys this summer without knowing this was going on.
Fast forward to now... leak is fixed, and Ive ran a bottle of seafoam through her as well as sprayed in the intake while running for a bit. Spark plugs were corroded (even though she still ran) so those were replaced. I inspected the throttle body (without disassembly) and it didnt look bad.
symptoms:
she fires right up with new plugs, jumps out of the hole just fine. around 4K rpm or so she sometimes does a surging thing where she momentarily loses power then comes right back (very quickly). It seems like theres no issue when I take her up to 5k RPM, she run great....
Sadly I am trying to sell her (season of life) and would like to get her running better before I do.
Any thoughts on what other issues could cause the micro surges in the mid rpm range?
thanks for any help
Danny
~1000hrs
up until this summer she pretty much ran perfectly for her age. Over the summer I ended up with a thermostat cover leak which through horrible engineering design, gets water into the air intake. Unfortunately I drove it for a few days in the keys this summer without knowing this was going on.
Fast forward to now... leak is fixed, and Ive ran a bottle of seafoam through her as well as sprayed in the intake while running for a bit. Spark plugs were corroded (even though she still ran) so those were replaced. I inspected the throttle body (without disassembly) and it didnt look bad.
symptoms:
she fires right up with new plugs, jumps out of the hole just fine. around 4K rpm or so she sometimes does a surging thing where she momentarily loses power then comes right back (very quickly). It seems like theres no issue when I take her up to 5k RPM, she run great....
Sadly I am trying to sell her (season of life) and would like to get her running better before I do.
Any thoughts on what other issues could cause the micro surges in the mid rpm range?
thanks for any help
Danny