1987 40 vro

travis050392

Cadet
Joined
Apr 23, 2020
Messages
9
im having an issue where when I reach top of water at full speed the motor begins to slow down like its starving for fuel (which it is) ive changed everything from the tank to the bubble the fuel pump to me seems to be working properly anything I could do to confirm its working properly?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,888
What happens when your assistant operates the manual pump ?-------Is the VRO in service , yes or no ?----Mix tank at 50:1 when doing this testing.
 

travis050392

Cadet
Joined
Apr 23, 2020
Messages
9
nothing happens
I had just gotten the boat and was told the vro isn't in service. I ordered a fuel pump according to the model number from iboat and the one I received doesn't look like its the right one nor do I see where it would mount to

ive been mixing 50:1 since I got the boat



OP.HhvRyavBo9mOCw474C474
 

travis050392

Cadet
Joined
Apr 23, 2020
Messages
9
nothing happens
I had just gotten the boat and was told the vro isn't in service. I ordered a fuel pump according to the model number from iboat and the one I received doesn't look like its the right one nor do I see where it would mount to

ive been mixing 50:1 since I got the boat

this is the fuel pump I recieved



OP.HhvRyavBo9mOCw474C474
wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,888
Looks like the correct pump to me.----Part # is ??------It mounts to the side of the top cylinder with two 10-24 screws and that gasket.-----Remove the plug for the pulse port.--------Plug the pulse port for the VRO that you took off.----Port side of the block and it should be fairly obvious where it mounts !!
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,888
??---Fuel goes in the barb on the cap of the pump.----Fuel comes out of the brass barb and goes to carburetors.-----Done.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,888
Top cylinder on port side of the motor.-----You should see the 2 holes 10-24 thread with a plug in between them.----Pump mountds at a slight angle.----Stand beside the motor. --Look at the top of the starter motor housing.----Then look to the right on the block.-------Should be obvious where it goes !!
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,888
???----You take that pump off and throw it away as far as you can.----Have you found the place to mount the replacement pump ?----Post a picture of the side of the block.----I might be able to point out where to look.----Removing the starter may help you as well to run hoses.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,888
Remove the old pump.----Then remove pulse limiter fitting.----Then screw a plug into the pulse port.
 
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