Briggs engine/ genreator

If the unit is older it could have heavy carbon in the cylinder heads, it could be a ring sticking and binding, do a compression test. Compression is high or mechanical binding.

A number of things can cause this. A sit worked before !
Basically:

Engines get older and can't hold HP which causes the rpm to slow and voltage dip, this causes a current increase and trips.

Breakers also get weaker especially if they trip a few times
HVAC and compressors pull approx 6 times the current to start as they do to run, once they have run a while, they build up higher head pressures which cause harder starting and more current draw, hence the breaker tripping.

It's hard to pin point which is the actual issue, but these all contribute.

Hi!

We have a put together a guide here to assist you in these situations. It will guide you through testing and repairing the Generator. : https://www.generatorguru.com/need-help/
If you need any further help our Generator Engineers are happy to assist you.

Regards,The Generator Guru Team

That's interesting that you bypassed the fuel pump after noticing that the carburetor was below the tank, not needing a fuel pump to start the engine.

Maybe they put a fuel pump in to ensure that the float bowl valve is not the only thing preventing gas from overflowing into the carburetor when stored for a long period of time.

I would put the pump in if that's the way they originally designed the fuel supply for the engine, just to be safe.

Good luck on this repair.

Try removing the spark plug and rotating the engine by hand.
It could be just a little corroded from shipment over the ocean.
But once you have it loosened up and the oil circulated, it should start much easier.
Make sure it has oil in it, because sometimes they drain the oil before shipping.
You could also have someone else try the starter rope. A new engine can be hard to start.

Hi!
We can help. :)
Check out our testing video and see how to pinpoint and fix the problem.
https://www.generatorguru.com/help-me-fix-my-generator-repair-advice/
If you need more advice we can get you in contact with one of our Generator Engineers to guide you. We do not charge for this service and are happy to assist you throughout the repair.
https://www.generatorguru.com/need-help/
Kind regards
The Generator Guru Team
Specialist Portable Generator Engineers & Parts Worldwide
www.GeneratorGuru.com

For a quick test.

Check engine oil.

Remove wire from low oil sensor and see if it starts every time.

If that works change oil and replace low oil sensor.

Hope this tip helps to solve your problem.

r/
David

check

avr / brushes if it has them

if not capacitor and diodes on the end of the armature