Saws shuts off

[Ed]

I've got an 1800 and I can get it started no problem but it shuts down after a few seconds after I take the choke off. Could this be a carburetor issue? Also, is there an air filter on this model? I'll be darned if I can find one.

[AL]

Check to see if the fuel lines are leaking.

[mike]

air filter

[Darrell]

It could one of several things. All saws need to breathe and get fuel. The air filter is located under the housing where the choke lever is located near the front of the saw. Second check; clean or replace the fuel filter located in the fuel tank. Next check to see that the fuel cap is breathing. When fuel is used air must be able to replace it in the fuel tank otherwise a vacuum develops, working against the fuel pump.

It is also possible the fuel line is cracked, hardened or deformed or pinched. I have found fuel lines to be the culprit a lot of the time. I have seen valuable saws discarded for that reason alone. If the fuel line is over 2 years old, probably wouldn't hurt to replace it.

Ok if all that is good the carb may be a little gummed up . You may need to adjust the carb low speed jet. Look on the carb. there are 3 adjustment screws: one is idle the other are low and high speed respectively marked L and H. Rotating the screw counterclockwise will increase the fuel rate. Play it with and see if that helps. Always remember the starting position of the screw.

After the saw has been run a while a readjustment may be necessary. As it is used slight gum deposits sometimes clean themselves up. If none of these remedies works, the carb may need to be worked on. The best thing u can do for a 2 cycle engine is crank it and run it periodically. Good Luck!