Home › Forum › Ask A Member › 49 TD20 Low-speed needle affecting high speed performance? › Reply To: 49 TD20 Low-speed needle affecting high speed performance?
November 16, 2023 at 8:09 pm
#282586
Two things to check. First of all what is the compression after installing new rings? Should be 70-77 psi to idle down properly.
Second of all be sure to clean and test the one way fuel valve that carries fuel to the low speed orifice/needle valve. 231-929-7479