2005 YAMAHA YZ125LC spark plugs

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Page 508 of 568

YAMAHA YZ125LC 2005  Notices Demploi (in French) 7-1
TUNSETTING
EC700000
TUNINGEC710000
ENGINEEC711001
Carburetor setting
9The role of fuel is to cool the engine, and in the
case of a 2-stroke engine, to lubricate the
engine in addition to power gen

Page 527 of 568

YAMAHA YZ125LC 2005  Notices Demploi (in French) 7-10
TUNSETTING
Symptom Setting Checking
0~1/4 throttle Use jet needle having a smaller  Number of turns-back 
* Hard breathing diameter. Correct properly
Speed down Overflow from carburetor
0~1/4 th

Page 534 of 568

YAMAHA YZ125LC 2005  Notices Demploi (in French) 7-11
TUNSETTING
EC71M010
Change of the heat range of spark plugs
Judging from the discoloration of spark plugs, if
they are found improper, it can be corrected by
the following two methods; changing c