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4.14 CARBURETION 15. Check throttle free play.see “THROTTLE LEVER FREE THROTTLE POSITION SENSOR The main job of the throttle position sensor (TPS) is for the SETTING THE TPS The TPS comes set form the factory and should not need any 1. Verify that the carburetors are synchronized (See 2. Verify that the throttle freeplay is with in specification 3. Once steps 1 and 2 are verified, you can set the TPS. 4. Set up your TPS sensor tool (PN 2201519) as per the 5. Make sure that you have a good 9v battery and place it in 6. With your volt meter, place the black probe lead to the 7. Place the red probe lead to the Pink terminal. 8. Turn your meter to the VDC setting. 9. Your voltage reading on your meter should read 4.99 - 10. Remove the probes from the TPS sensor tool. 11. Remove the TPS connector from the TPS on the carburetor. 12. Plug in the TPS connector on the TPS sensor tool to the TPS on the carburetor. 13. Insert the Red probe from you meter to the Yellow terminal on the TPS sensor tool. 14. Insert the Black probe form your meter to the Black terminal on the TPS sensor tool. 15. Turn your meter to the VDC setting. 16. Slowly open the throttle and watch your meter for a smooth voltage increase. NOTE: You may see a O.L. momentarily when the 17. If the specification is not correct, you will need to turn the TPS on the carburetor. 18. To increase the voltage you must turn the TPS counterclockwise. 19. To decrease the voltage you must tun the TPS clockwise. 20. When the TPS is set to specification, torque the TPS holding screws to 31 in-lb (3.5Nm). 21. Make sure that the voltage is within the specification after torquing the screws. 22. Disconnect the TPS sensor tool. 23. Connect the TPS connector back on the TPS. 24. Disconnect the 9v battery form the TPS sensor tool and place both in storage. TPS Volts at wide open throttle for Domestic engines with carburetors: 4.0 - 4.2 VDC |