Snow blower rough idoling, low RPMs at full throttle. HELP!

[Flipper]

I have two snow blowers that idle rough and have low RPMs at full throttle. I tried messing with the throttle spring but that didn't help. What should I try now?

 

[Flipper]

I've been doing some research online but can't seem to find an exact answer. Let me brake down for you exactly what the blower is doing. I prime the carb and put the throttle in the low idle position. Fires right up and low idles rough. Increase the throttle and RPMs barely increase and is a rough run.

 

[exotion]

Have you cleaned the carb? Is it OHV? Could use an adjustment if nothing else may need a govenor adjustment. Just sounds like something is out of adjustment or its starving for fuel

 

[Flipper]

I've clean the carb, adjusted the govner, played with the screw on the side of the carb. I think it's an air/fuel mixture problem but I don't know what to do. Smoke comes out of the exhaust very gray in color. Not an OHV engine. Techumsa 2 stage 5hp.

 

[Flipper]

Here is a pic