2000 Baja fuel question
#12
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Joined: Oct 2013
Posts: 2,888
Likes: 148
From: SF Bay Area
I’d give it the full Monty of a tune up before you start chasing ghost. It could be plugs, plug wires, filters, voodoo curse from an ex wife etc. Start with the cheap simple stuff that should be done anyways.
#14
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Joined: Jul 2015
Posts: 1,201
Likes: 89
From: Atlantic Southeast
Carb or MPI?
For MPI
If it has a VST you'll want to dig into it as the electric pump pickup is probably plugged up with gunk. Mine was at 250 hrs. Also check the check valves at your fuel tank, they plug up too as well as the 90* at the mechanical lift pump.
For MPI
If it has a VST you'll want to dig into it as the electric pump pickup is probably plugged up with gunk. Mine was at 250 hrs. Also check the check valves at your fuel tank, they plug up too as well as the 90* at the mechanical lift pump.
#15
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Joined: Jun 2015
Posts: 77
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From: Charlotte
I pulled the pump which is new. Looked pretty clean. I cleaned it all out and ran it over the weekend. If you go full throttle it falls on its face but if I gradually increase throttle it will run better. Still does there is an issue. I will check the lines and see if they are clogged. Just FYI boat only has 250 hours on it. Motor has about 5 hours.
#16
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Joined: Nov 2004
Posts: 14,103
Likes: 3,692
From: On A Dirt Floor
^^^This.^^^
Just a slight elbowing: Why people love to replace several or more parts and stay up all night wondering what is wrong with their engine, yet fail to buy a few low dollar tools always amazes me.
Fuel psi testers are under $40, even locally.
Report backwith psi at idle, low speed, and when the issue occurs.
Try tonot runmotormuch even when testing. Lean can burn a piston or blow a headgasket and notch a head pretty quick.
Just a slight elbowing: Why people love to replace several or more parts and stay up all night wondering what is wrong with their engine, yet fail to buy a few low dollar tools always amazes me.
Fuel psi testers are under $40, even locally.
Report backwith psi at idle, low speed, and when the issue occurs.
Try tonot runmotormuch even when testing. Lean can burn a piston or blow a headgasket and notch a head pretty quick.





