Cylinder And Piston Combination; Piston Ring Inspection - Yamaha WaveRunner GP1300R Wartungshandbuch

POWR
PISTONS
4. Calculate:
• Piston-to-cylinder clearance
Out of specification → Replace the pis-
ton, piston rings, and cylinder as a set.
PISTON
CLEARANCE
Piston-to-cylinder clearance:
0.100–0.105 mm
(0.0039–0.0041 in)

Cylinder and piston combination

Select the appropriate piston to match the cyl-
inder size from the table as follows.
Cylinder size
indication a
00–05
06–10
11–15
16–18
NOTE:
New cylinder bore size = 84.000 + a/1,000
Example: a = 12 → 84.012 mm.

Piston ring inspection

1. Measure:
• Side clearance
(using a thickness gauge 1)
Out of specification → Replace the pis-
ton and piston rings as a set.
Side clearance:
0.020–0.070 mm
(0.0008–0.0028 in)
5-34
CYLINDER PISTON
= –
BORE DIAMETER
Piston color mark
Red
Orange
Green
Purple
E