You have to get the jetting right. First as explained in previous post the main jet. Once the main jet is proper you can then look at the pilot or idle jet. If you need to adjust a/f mix screw more than 1 1/2 turns out than you will up that jet one size up. But first make sure you have no vacuum leak at intake, valves are properly adjusted and you have good compression. These 3 are a must to get a good tune on the engine. Download the service manual at americanlandmaster.com and go through all the checks, don't get into any hurry. Once you get it running great than you determine what it is lacking then that is when you buy the performance parts to enhance the power. You can contact me anytime with questions via this forum, e-mail or many times best to call 662-301-1563.
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