Predator 3500 Generator - surging problem fixed!

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Published 2021-02-10
In this video I show how I fixed the common surging problem with the Predator 3500 Generator from Harbor Freight. This video is not for mechanics (WILL)!!!! This is mainly for the person that has some mechanical sense.

If people are interested maybe I can get the "Honda Master Mechanic Will" to do a walk through.

All Comments (21)
  • I waited too long to test my generator, when I finally did it was past the return period. It was surging right out of the box...I thought I was out $850. Saw this video, drained the carb, adjusted the screw, poked out the jet. My genny is currently purring like a kitten, thank you!!!
  • My predator with 746 hours lives on thanks to your video! I also evacuated old gas and drained carburetor bowl and now it's running like new!
  • Thanks for the video. Quick easy fix. I used a single strand of twisted copper wire and carb cleaner. Worked like a charm. Will put this on my maintenance list. You da man, thanks.
  • @Sturdyhart
    That worked beautifully - I thank you for putting this video out there for the rest of us to benefit from your expertise.
  • @randyirby7968
    I have this same generator and had the same trouble with it surging. This worked like a charm. I was afraid I would have to spend a $100 or more to have it fixed. Thanks.
  • @alemar9
    Thank you so much! The storms in California have been repeatedly knocked out my power in the last few weeks. My Predator sputtered and died last night, I thought it was a goner. This worked beautifully and as you had displayed it wasn't complicated. However, I would have had to bring it in for repair without your video. THANKS!
  • Thanks it fixed my problem with the generator did exactly what you did and it’s much better now after almost 2 years of storage
  • @hagsmich
    This worked for me on my 8750 Predator generator. Thank you so much. I used a needle, carb cleaner and a compressor to clean out the blockage.
  • Been running 3 months almost non stop. Loping then died. Makes sense. Appreciate it
  • Thanks for this tip. I have been working on my predator and was not sure how to get that adjusted. Will be doing that for sure. Great video!
  • Thank you for the info!! I actually bought a tachometer on Amazon and calibrated it that way. Manual states 2600-3600 rpm. I let it warm up, put it eco mode, tuned it down to 2600 rpm, it took only a minute to tune. No more rough idle after cleaning that piece.
  • @MrSmith-nu7qf
    Great video...very informative...& thank you for leaving the " error" in the video it helps us know what to expect.
  • @Handirifle
    Thanks for the great video. I have changed the jet size, and had it running like a top, until today. Was running real rough and only when on full choke. Your vid reminded me of the tiny jet. Removed, cleaned it, and now it purrs like a kitten again.
  • Great job. My generator is doing the exact same thing. I need to adjust this also. Thanks!
  • @stanjarmolowicz
    thank you so much ...you saved me ...i have this generator 4 years and work great until now . i did change oil probbably more often than recomended . once i have issue in the past was clogged exhaust ..it build up carbon so badly that there was barelly any flow and ofcourse didn't work right . i just removed the screan and after that was like day and night in performance .
  • @willwillis2381
    Perfect explanation. Works like a champ. Go elk dudes! All good, thanks.
  • Mine is brand new and surging at idle, was going to take it back but I will try your method first, thanks great video.
  • @jamesmason7124
    Great job keep up the good work and please stay safe so you can keep us safe
  • @GerardBarreto
    THanks for the Video, it was good. I am going to try that. I have my Predator for about 2 years now and from day one it was surging at idle & unless a lot of load is applied it just surges or hunts. I have tried vent the entire box, replaced the spark plug, replace the oil, replace with fresh if it sits too long and still doesn't run smooth. So I will try your fix & see what happens, thank you again.