Chinese generators

Auto Doc's said:
Hi Scrubcadet10,

It sounds you are getting close to what will make this thing run happy and behave.

I have a few space heaters and a portable room AC unit for my shop that I use for testing when needed to pull at least 10,000 watts.

Most portable generators I ever see are in the 8K range or less.
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The only thing I hate about my heaters, is they have the thermostats on them, and it’s already 90 outside so they won’t kick on 😂
 
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Scrubcadet10 said:
It's been a bad year for the off brand (Non Generac,Briggs, Honda etc) generators. or at least for me it has.
I've had several come in with issues and i finally have to throw in the towel, and more than a few are surging issues that i can't pin down.
I've got a DuroMax i'm working on now, my fresh gasoline, new fuel line, new carb from duromax, all new intake gaskets, surges for about 4 seconds on initial cold start, then goes away, begins to surge once i put about 3000 watts on it. unit idles down good. (10,500w rated). surge Goes away with choke, so i slightly oversized the main jet... i'm talking slightly... and it went too rich. had to swap the main jet from a junk duromax i have, same carburetor.
carb spray around the intake doesn't change anything so i know im sealed up good. Fuel flow stays consistent.
had a similar story with a champion several months back.
I've hooked my spark tester up and that stays consistent blue spark.

But i've not had a single issue repairing any Storm Responders or older powermates etc.... weird.
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I spent way to much time finding the problem of surging with a clone generator . It was new and returned to the store then went to a auction specializing in selling returns. It was bought , then problem was brought to me. I went through the carb 4 times , then ordered a new carb. It acted the same way with the new carb and gasket. I compared the new gasket and carb with the origial and it was same in every way. I noticed the gasket between the carb and intake was blocking a small round hole as was the original gasket . I used a hole punch and put a hole in the gasket put it back together. It was fixed and ran fine . Must have been a world wide problem for the new carb came with the same gasket.
 
Scrubcadet10 said:
It's been a bad year for the off brand (Non Generac,Briggs, Honda etc) generators. or at least for me it has.
I've had several come in with issues and i finally have to throw in the towel, and more than a few are surging issues that i can't pin down.
I've got a DuroMax i'm working on now, my fresh gasoline, new fuel line, new carb from duromax, all new intake gaskets, surges for about 4 seconds on initial cold start, then goes away, begins to surge once i put about 3000 watts on it. unit idles down good. (10,500w rated). surge Goes away with choke, so i slightly oversized the main jet... i'm talking slightly... and it went too rich. had to swap the main jet from a junk duromax i have, same carburetor.
carb spray around the intake doesn't change anything so i know im sealed up good. Fuel flow stays consistent.
had a similar story with a champion several months back.
I've hooked my spark tester up and that stays consistent blue spark.

But i've not had a single issue repairing any Storm Responders or older powermates etc.... weird.
Click to expand...
Not just on generators, but sometimes the hunting and surging on a small engine cannot be completely stopped. It absolutely drives me crazy. I end up spending way too much time trying to get it right and usually eat the labor time for customer.
Drilling out the pilot jet (idle) or air/fuel jet will sometimes fix the surging. Bear in mind you also run the risk of the micro drill bit breaking off in the jet.
 
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