Echo 403T Choke issue

Discussion in 'Mechanic and Repair' started by Allens LawnCare, Mar 14, 2007.

  1. Allens LawnCare

    Allens LawnCare LawnSite Senior Member
    Messages: 926

    When choked starts first pull, the only problem I have is I need to run it half choke to get max power out of it when I shut the choke off and open up the throttle it bogs down...My guess is I need to clean the carb....anyone know the what to look for when cleaning the carb...any diagrams!!
  2. ose58

    ose58 LawnSite Member
    Messages: 15

    Your Carb Has Two Adjusting Screws On The Side. Open The One With The H (high) Below It While It Is Running Until It Picks Up Rpm. Your Carb Is Just Running To Lean Now. Counter Clockwise Will Make It Richer, Clockwise Leaner. Good Luck.
  3. Allens LawnCare

    Allens LawnCare LawnSite Senior Member
    Messages: 926

    yeah I brought it in for the same thing last season and they made that adjustment....they didn't clean the carb so I figure I'll clean it myself. Which Means I'll have to make adjustments again.
  4. ed2hess

    ed2hess LawnSite Fanatic
    Messages: 14,372

    I assume you put in a new fuel filter and air filter? Is there an excess oil/fuel mixture coming out maybe a head gasket is blown out? Take those red plastic stops out on the carb adjustment so you can rotate the screws as much as you want instead of just part of a turn.

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