Husqvarna TC 250 2010 Workshop Manual page 352

ELECTRICAL SYSTEM
IMPORTANT
Before washing the motorcycle, it is necessary to duly protect the following parts from water:
a) Rear opening of the muffler;
b) Clutch and front brake levers, handgrips, handlebar switches;
c) Air filter intake;
d) Steering head, wheel bearings;
e) Rear suspension drag drop link.
In addition to these precautions, NEVER ALLOW HIGH-PRESSURE AIR OR WATER to get in contact with any ELECTRICAL
PARTS, the INJECTION FUEL FEEDING SYSTEM, and especially the electronic control unit (1).
M.54 Part. N. 8000 H1489 (10-2009)