2004 KTM 950 ADVENTURE REPAIR MANUAL

0

Filed Under (KTM) by admin on 23-11-2010

download
Intake system Fresh air is drawn into the filter box through the intake snorkel 1 , past the carburetors 2 and through the air filter 3 . The cleaned air is conducted to the combustion chamber through the carburetors and intake ports. 1 2 2 3 2-4 Repair manual KTM LC8 Art.-Nr . 3.206.016-E Secondary air system The secondary air system supplies fresh air to the emissions in the exhaust port, resulting in the afterburning (oxidation) of the emissions. A line leads from the filter box 1 to the control valve 2 which opens as soon as the throttle valves 3 are opened. The line continues to the reed valves 4 in the cylinder heads which are actuated by the pressure pulsation in the exhaust system. As a result, cleansed fresh air arrives in the exhaust port. The oxygen content in the air and the high exhaust gas temperature cause the emissions to oxidize. If the throttle valves are closed and the engine goes into an overrun condition, the underpressure in the intake port will rise and the control valve will close. This prevents exhaust backfire (combustion of the unburned fuel/air mixture). 1 2 3 3 4 4 4 2-5 Closed thermostat The thermostat is closed if the temperature of the cooling liquid drops below 75°C. The water pump 1 pumps the cooling liquid through the cylinder and cylinder heads 2 and the thermostat 2 . Open thermostat The thermostat 3 opens at 75°C. The water pump 1 pumps the cooling liquid through the cylinder and cylinder heads 2 , the aluminum cooler 4 and the thermostat. The pressure in the cooling system (max. 1.4 bar) is regulated by a valve in the radiator cap 5 . The cooling liquid level in the compensating tank 6 must be between the MIN and MAX marks when the engine is cold. The fan 7 switches on at 102°C.