G.12
TE 250R - 310R 2013 I.E. / TE 310R 2013 I.E. USA
TC 250R 2013 - TC 250R 2013 I.E. USA
TXC 250R - 310R 2013 I.E. USA
ENGINE OVERHAUL
Workshop Manual Ed. 07-2012
Piston rings
They should show no signs of forcing or scoring.
Replacement pistons come with piston rings and piston pin.
Piston ring to cylinder clearance
Insert the piston ring at the bottom of the bore (where minimum wear occurs)
taking care to position it squarely and measure end gap.
Piston ring to cylinder clearance
PISTON RING
MOUNTING CLEARANCE (H)
"A"
0.15 -0.30 mm
(0.00591-0.01182 in.)
"B"
0.2-0.7 mm
(0.00788-0.02758 in.)