Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Just inherited my fathers old snow blower which he hadn't used in a couple of years.    Flushed the gas, added new.  started right up but the unit didnt drive forward.    Like an idiot I tipped it on its side to examine the pressure disc and didnt notice the oil pouring out the carb for a few minutes.     Wouldn't start after that.   Pulled the old spark plug to check for oil in the cylinder.   none came out when i pulled the cord.   Put in new spark plug,  drained old oil and refilled with 5w-30 and it fired right up but will only run on 3/4 choke and full throttle.   TYried adjusting screw on bottom of carb but it just kept stalling out.    Is this because the oil that ran through the carb? Any suggestions would be great.     Also Does anyone have a diagram of the carb?   It may be missing an air filter,   Im obviously not too familiar with these thing or I never would have tipped it on its side.

Thanks matt 

I've learned through hard experience the needle valve has a hole that gets clogged.  Once it does, it just won't work right.  I've had good luck dropping the entire needle valve assembly from the carb, and running a fine wire through the hole in the needle valve.  Doing it this way avoids re-setting the needle valve.

Last summer, I just unscrewed the needle valve and cleaned it all because of some dirt.  The post above mine has the correct procedure for setting it.  The only thing before you set the needle valve, let it warm up for 15 minutes.  If you google, you can find even more detailed procedures for resetting the needle valve if you google it.  I thought I had them here on my HD, but it appears I lost them.

The carburetor is a little fussy from that standpoint, but generally, it gets you through a couple winters before you need to clean it.