Inspection / Servicing - Suzuki DF 40 Service Manual

6-43 POWER UNIT

INSPECTION / SERVICING

NOTE:
If cracks, excessive wear or other damage is found on any com-
ponent, replace component.
CYLINDER
• Cylinder distortion
Using a straightedge and thickness gauge, measure cylinder
distortion (gasketed surface) at a total of six (6) locations as
shown.
09900-20803 : Thickness gauge
Cylinder distortion
Service limit : 0.06 mm (0.0024 in.)
If measurement exceeds service limit, resurface or replace
cylinder.
NOTE:
Cylinder can be resurfaced, using a surface plate and # 400 grit
wet sand paper.
Use a figure eight sanding pattern when resurfacing.
• Water jackets
Check water jackets.
If clog or obstruction is found, clean water jacket.
• Cylinder bore
Inspect cylinder walls for scratches, roughness, or ridges
which indicate excessive wear.
If cylinder bore is very rough or deeply scratched, or ridged,
rebore cylinder and use oversize piston.