Just won't start!

I'm NOT trying to be a smart a$$, but there is a fuel shutoff valve under the tank on the left side (as you sit on the tractor). Open it about 2 turns. Then check the fuel flow at the carb as was suggested below.

Since you can get it to run on starting fluid but not on its own, my guess is a fuel problem.

There are 3 screens/filters that can plug up. The first 2 are easy: at the fuel line elbow in the carb and between the shutoff valve and the glass bowl. The last is the hardest (and my suspect). It is on top of the shutoff valve inside the tank. If you open the shutoff valve and don't have flow, you can trying blowing compressed air back into the tank through the valve. However, if it is plugged, the best thing is to replace the complete valve (less than $20).

Good luck,
Danny

Can't speak for the functionality of the plastic venturi but I will bet that the air can't tell what material it is flowing through. If not fuel, there must be either a leak in the system or one of the carb passages are plugged off. Plastic always makes me think of passages that are not molded properly.

During the molding process if the pins in the die are not properly matched to the other tool sections the material can flash over the end of the pin and close the passage off. Check any holes to assure they are actually open all the way through.

Got a great deal on a virtually new chain saw at a garage sale once. Seller said it died when you tipped it sideways. Turned out that the suction hole that pulsed the fuel pump diaphram was closed off due to poor molding. Cleaned it out and she ran like a top.

It's the little things sometimes.

Good Luck

There are some that claim the nylon venturi just don't fit right and don't like them because they sit a little tall in the saddle and don't allow the float half to seal with the throttle half. I don't know because I've never had to deal with one.

Unfortunately, I can't remember all the other associated miss-fitting venturi problems. Maybe someone else remembers or you might find something in the "archives" at the top of this great N-Board..... ....Dell