Generic XOR 50 ccm, Service Manual

Page: 55 / 110

55
CARBURETION
Proper carburetion is determined according to the results of various tests, mainly
concerning engine poer, fuel consumption and cooling effect of feul on engine, and jet
settings ard made so as to satisfy and balance all of these conditions. Therefore, the
jet should not be replaced with a size other than the original. And the positions of
adjustable parts should not be changed except when compensation for the mixture
ratio due to altitude differences or other climatic conditions. When adjustment is
necessary, refer to the following.
OIL PUMP
OIL LEAKAGE throughout
Whenever evidence is noted of some air having leaked into the oil pipe from the oil
tannk in a machine brought in for servicing, be sure to carry out an air bleeding
operation with the oil pump in place before returning the machine to the user. To bleed
air, hold the machine in standstill condition.