Husqvarna TE 250 Workshop Manual page 308

ELECTRIC SYSTEM, DIGITAL INSTRUMENT
Throttle Position Sensor checking (TPS: Throttle Position Sensor)
(TC-TXC-SMR 450 R)
1
Set the tester in "Ohm" position then detach the throttle position sensor cable (1)
from the main wiring harness. Set the two tester terminals in corrispondence of
YELLOW (A) and BLACK (B) cables and check for the correct values (see table).
a- throttle control grip in CLOSED position
b- throttle control grip in COMPLETELY OPEN position
"KEIHIN" MX 37- MX 41
A Yellow
B Black
M.28
890-990
3,4÷4,4 K +/- 5%
Part. N. 8000 B0148 (02-2008)