Yamaha YZF-R125 Service Manual: Crankshaft
Assembling the crankcase
1. Thoroughly clean all the gasket mating surfaces
and crankcase mating surfaces.
2. Apply:
Sealant
(onto the crankcase mating surfaces)
NOTE:
Do not allow any sealant to come into conta ...
Removing the crankshaft
1. Remove:
Crankshaft "1"
NOTE:
Remove the crankshaft with the crankcase
separating tool "2".
Make sure the crankcase separating tool is
centered over the crankshaft.
CAUTIO ...
Other materials:
Replacing the air filter element and cleaning the check hose
The air filter element should be replaced
at the intervals specified in the
periodic maintenance and lubrication
chart. Have a Yamaha dealer replace
the air filter element more frequently if
you are riding in unusually wet or dusty
areas. In addition, the air filter check
hose must be ...
Periodic maintenance and lubrication chart
NOTE:
The annual checks must be performed every year, except if a
kilometer-based maintenance,
or for the UK, a mileage-based maintenance, is performed instead.
From 30000 km (17500 mi), repeat the maintenance intervals starting
from 6000 km (3500 mi).
Items marked with an asterisk s ...
Checking the piston rings
1. Measure:
Piston ring side clearance
Out of specification Replace the
piston
and piston rings as a set.
NOTE:
Before measuring the piston ring side clearance,
eliminate any carbon deposits from the piston
ring grooves and piston rings.
2. Install:
Piston ring
(into the cylind ...