Carburetor help please (20 Kawi)

[JohnF]

It (the fun) started when it (the engine) didn't. I pulled the carb and gave it a good cleaning. Reinstalled and got terrible surging (governor) at WOT. Pulled it and made darn sure every thing is real clean.

Here's where I am...

It idles great. I let it warm up and adjust the fuel screw from lean up until I just sense peak (by sound) and then a tiny bit more. Then I twist WOT and (there may be a hesitation) the engine will open up and sounds great. Then about a count of two there is a tiny bit of surge and then (count of three or so) it will die if I keep WOT; if I let off soon enough it will catch itself and come back at idle.

I don't know what I am seeing. I thought (and my experience is) that governor surge means fuel starvation. This makes me wonder if my fuel pump just isn't keeping up with demand. I put the fuel line in a cup and turned the key on and it does trickle pretty slow but I have no idea what the flow rate should be. Anyone?

And then (by smell) I think it is running really rich. Like I said, I haven't really adjusted the fuel screw yet, but golly, burning eyes and nostrils...

I haven't checked the plugs for color. I would like to get it running well first.

Thanks, guys.

[steveohio]

Sounds like fuel supply problem. All our Kawasaki's with electric pumps pump steady stream fuel. Have you installed new filter lately? If so Make sure it's on correctly. If on backwards it could just trickle fuel. also check fuel pickup tube in tank.
Did you remove main jet assembly inside carburetor and clean. Kawasaki's don't like the least little bit of water or dirt! Jets are fine in them compared to Kohlers or such. What model is you engine. single or dual carb? If Single make sure you remove main jet tube up inside carb! It has a series of tiny holes in it and is top ones plug up.