I just got this for $50 but not sure I got a deal . .it is a kipor 3000ti and I got it running but it has what I think is a rod knock.  Can anyone tell me what this knocking noise is?  I took the valve cover off and all seems ok but haven't gone any further.  Thanks!  Ok so I cant upload the video as its too large but it runs and idles but has a loud rhythmic banging noise.  Ideas?!

Sounds like a classic rod knock..
 
What make, model engine?
 
 
Can you upload a video/audio to You Tube?
 
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Hi Scott . . it is a Kipor motor 4 cycle 1 cyl .  some of the parts are Honda.  I took the valve cover off and everything looks ok . . oil is clean.  I bought it as a non runner for $50 and it functions and produces electricity now but . . . . . Try this link 

 on facebook

wow wont let me post anything . . . hobbytalk.com has the video
 

https://www.hobbytalk.com/threads/kipor-generator-rod-knock.620610/
 
Just sent you a PM as I couldn't get it to play..
 
 The parts diagram doesn't show the piston, crank, etc.   ??
https://www.generatoremporium.com/pdf/IG3000-parts.pdf 
 
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Ok, saw and heard the very short video.
 
It's hard to tell as the engine seems to be running bad, / slow, like loading up.
 
Can you get the engine to run at it's full 3,600 RPMs?
 
If equipped with an auto idle, turn it off so it'll rev..
 
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well it has a new spark plug and I cleaned the carb and jet . . maybe there is some mechanical interference on the generator side . . I will see if I can get it up in the rpms.  The fuel pump seems weak .. .but it wouldn't cause that noise.