Q: I rebuilt my 2150 with your recommended kit. Now the vehicle run on a second or two after turning off the key. Any suggestions as to what could be causing that? I’ve changed nothing else, just the carb rebuild.

**A:**I think it's running too rich.

Check the needle for any damage to the viton tip. Any pressure put on the tip when installing will damage the needle.

Check the bottom of the float bowl for any dirt. Dirty gas tanks, lines, or fuel filter can re introduce dirt into the carburetor causing the needle to not seal.

Gently hold the float up to close the needle and suck on the fuel inlet hole. It should not allow air to pass through.

Last but not least check the float level.

Also does the carburetor have an idle solenoid. It may need to be not closing the throttle fast enough.