Hi,
I have a BF150 2008, new to me this season. Seemed to be going fine when first launched for the season a month ago but since a week ago it bogs down when over half throttle. Max rev under load is below 4000 rpm.
Read all the interesting posts on the forum and I have so far:
* Changed LP and HP fuel filter, cleaned water separator bowl. HP filter was completely deformed so I thought I had found the issue there.
* Drained VST (fuel looked clean, only few drops of dirty water)
* Bypassed fuel tank, remote grommet and Racor by running fresh 98 oct fuel directly from pony tank to water separator.
* If I push key on-off a couple of times to prime the HP side the boat flies like a rocket for 20-30 seconds and then slowly goes back to its current rev limit of 4000 RPM.
* I had the fuel regulator removed today, looked fresh. I was surprised to see that there was no obvious pressure on the fuel in here even though I had just shut off the engine. I even "key-primed" the HP pump with the regulator off to try to see the flow. It's flowing but I guess I can’t tell if it's enough without having a fuel pressure gauge.
I am thinking of fuel restriction on the HP side. I would be thankful for any advice on where to look next, what components usually fail.
Cheers
I have a BF150 2008, new to me this season. Seemed to be going fine when first launched for the season a month ago but since a week ago it bogs down when over half throttle. Max rev under load is below 4000 rpm.
Read all the interesting posts on the forum and I have so far:
* Changed LP and HP fuel filter, cleaned water separator bowl. HP filter was completely deformed so I thought I had found the issue there.
* Drained VST (fuel looked clean, only few drops of dirty water)
* Bypassed fuel tank, remote grommet and Racor by running fresh 98 oct fuel directly from pony tank to water separator.
* If I push key on-off a couple of times to prime the HP side the boat flies like a rocket for 20-30 seconds and then slowly goes back to its current rev limit of 4000 RPM.
* I had the fuel regulator removed today, looked fresh. I was surprised to see that there was no obvious pressure on the fuel in here even though I had just shut off the engine. I even "key-primed" the HP pump with the regulator off to try to see the flow. It's flowing but I guess I can’t tell if it's enough without having a fuel pressure gauge.
I am thinking of fuel restriction on the HP side. I would be thankful for any advice on where to look next, what components usually fail.
Cheers