Throttle Position Sensor; Setting The Tps - Polaris 340 CLASSIC 2006 Manual

CARBURETION
15. Check throttle free play.see "THROTTLE LEVER FREE
PLAY" on page 3.24.

THROTTLE POSITION SENSOR

The main job of the throttle position sensor (TPS) is for the
CDI box to read the throttle position. This indicated throttle
position will determine the timing map for the conditions that
the engine is running at. The CDI box will look for the TPS
opening value and water temperature value and determine
which timing map to give the engine. The TPS setting is
critical for correct timing and run ability.

SETTING THE TPS

The TPS comes set form the factory and should not need any
adjustments. However, if the TPS was moved or removed for
any reason, Polaris has developed a TPS sensor tool that will
assist you in correctly setting the TPS to specification.
1. Verify that the carburetors are synchronized (See
"THROTTLE VALVE
page 4.13.).
2. Verify that the throttle freeplay is with in specification
(See "THROTTLE LEVER FREE PLAY" on page 3.24.).
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
instructions that came with the tool.
5. Make sure that you have a good 9v battery and place it in
the TPS sensor tool.
6. With your volt meter, place the black probe lead to the
black terminal.
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 -
5.01 VDC. If not replace the 9v battery with a new one.
10. Remove the probes from the TPS sensor tool.
4.14
SYNCRONIZATION" on
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
throttle is open. This is normal.
TPS Volts at wide open throttle for Domestic
engines with carburetors:
4.0 - 4.2 VDC
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.