Hi, can I get the vendor and the part number for the fuel pump? I think I an incorrect fuel pump.

Where did you both that fuel pump

Really it’s best to add other ground up to the engine to make sure pump is getting a good ground

One handy thing to do with these gennys, is to put an inline ball type shut-off valve on the fuel line right at the carburetor. When you shut down for any length of time, close the valve and let the motor quit by fuel starvation. This will vacate the carb of any fuel (and ethanol) and keep it from gumming up.

No power to generate a fuel pump

No power to fuel pump what is wrong

THIS IS HOW I FIXED MINE, IN THE CASE OF.... "I CAN'T START MY GENERATOR" It's has been two years since last time it was running, so I started by checking oil level full at gen dipstick (it won't start if low oil because of sensors) then I checked gasoline more than 1\4 tank in the RV (also safety sensors), sparkplug checked for good spark, also checked the manual reset circuit braker ( to be ON) at front motorhome engine compartment for 12v current to the generator to be able to start it, also cleaned the carburetor and even installed new one but same situation, then checked wires and found some has been chewed like gum by rats at the back of starting switch generator panel so I replaced them, at this time the generator started but stay running only by keep pushing the switch on all the time, so then finally I knew it was internal electrical problem from the engine itself, so I took the generator out from my RV to work in my garage, (I did this by myself with some tools and old Mayan tricks ) lol, it's really heavy for one person. I disassemble the unit at my garage and started by removing the cover, then the cooling fan or flywheel unit (it's 2 items in one) until finally I was at the gen rotor and brushes assembly area and this is what I found: one more wire chewed by filthy rats plus the stinky rat nest in the middle of the generator motor coil, I fixed the wire and sanded the commutator copper contacts where the brushes are sitting becouse they were real duty with old urine from the rats, and of course I got rid off the stinky nest, lol!!! Then I assembled everything back together and... bingo it's runing like a champion!!! For this project materials involved was about $60.00 including an aftermarket new carburetor and an harmonic balancer/steering wheel puller (available at any auto parts for $25.00) to pull the aluminum fan out and (flywheel). Just picture this: (Any gasoline engine run smooth if gasoline and DC current aren't interrupted) so following this important principle you'll always find the problem to be fixed. Also if you have a onan microlite 4000 like mine, don't run it for more than a minute without the cover because you'll cook the engine real fast, also keep the eye on the aluminium fan and your fingers after cranking it in case you missing one or two members...just kidding, lol!!! After testing the gen then I did put the air cooling assembly back and the rest of components including the cover, now it's ready to be installed at my RV. Once the gen was installed back at my motorhome I started it to be tested for electric power but not before flipping the electric switch (on) at the gen starting control panel (sometimes hiding under or around the panel) to transfer power to my RV GFCI main outlet and electric panel as well, my motorhome it's equipped with GFCI so I reset it and tested for green led light indicating power is ready at my main breakers panel, so I turned my main breaker (on) along the others ones but no power was present at my breaker main switch (faulty main braker) so I flipped it many times, sometimes you can make it work again, mine did work, lol!!! I'm happy because everything works now including the ref for cold drinks and AC for this crazy summer, lol! Later I'll buy me a new main braker, for now this is a resurrected generator story that needed to be shared. If this can help eaven one person to save time and $$$ it'll make me more happy, thanks for reading!!!

What's your model number on the onan.?

Great news!

Thank you, thank you, thank you! I just finished replacing my fuel filter. I wanted to unscrew it form behind, but something broke inside of the filter. This made the outside part rotate, but the side with the screw stuck. I had to remove the controller board. The key point for me was the "board kinda slides out". It does! Was not easy, but I could get it out without disconnecting the bottom wires (just flip it out after 'sliding out'). Then I could simply unscrew the pump and remove the filter with large pliers. Now my Onan runs again, 25 minutes so far, but I'm already happy! I had to buy all the tools (I'm new to the bay area), but was still cheaper than asking for professional help. I almost gave up.. If anyone tries this, use WD-40 before trying to force the screws out. Did I say thank you yet? Thank you!

Good informative video. Thanks!