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Yamaha YBR 125 Series

Valve Clearance : 0.08 - 0.12 mm ( inlet ) , 0.10 - 0.14 mm

( exhaust )
Check Valve Clearance Every : 2000km
Note: Adjust valve clearance on cold engine

Spark plug Gap : 0.6 mm - 0.7 mm.
Spark Plug Tightening : 1/2 or 180° for new spark plug and 1/8 or 45° turn for old spark plug

Engine idle speed : 1400 Rpm ± 100 Rpm
Engine oil : 1 liter 

Recommended oil viscosity : 10w - 40

Recommended Engine oil API Standard: API SL, MA2


Oil Change Interval : 2000 - 3000 km or earlier ( depends on riding conditions and engine oil type ) 
Note: use only quality synthetic engine oil for more than 2000 km

Clutch lever Free play : 10 mm - 20 mm
Throttle cable Free play : 3 - 7 mm

Note : first tighten spark plug by hand . for tightening new spark plug turn the spark plug 1/2 turn right with spark plug wrench and then loosen it and then turn it right again this time turn it 1/8 or 45° . this will crush spark plug gasket and securely seat it in the head


Warning : these torque values are only applicable for Yamaha Ybr 125 series spark plug check owners manual for your motorcycle spark plug torque specs

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