Mash Seventy Five - Page 58

58
Abnormal engine operation
Abnormal
noise from
engine
• Serious worn out
cylinder and piston
• Serious worn out
needle bearings in
small and big ends of
connecting rod
• Premature ignition
• Excessive carbon
deposit in
combustion chamber
• Overheated spark plugR
• Replace cylinder
body and piston
• Replace bearing and
relate parts
• Adjust ignition time
• Clean out carbon
deposit
• eplace spark plug
Unstable
engine
operation
• Contamination of
fuel intake system
• Crankcase leakage
• Clean or replace
fuel line
• Replace the seal
Overheat
engine
• Low gear driving over
a long time
• Over loaded driving
or long time driving
with heavy load
• Unqualified engine
oil or insufficient
transmission oil
• Slipping clutch
• Too tight chain
• Unreleased brake
• Change gear position and
control time
• Control load-carrying
and rest from time to
time for cooling
• Replace with qualified
engine oil and fill oil to
transmission case
• Adjust free play or
replace clutch, friction
lining and spring
• Adjust tension
• Adjust brake clearance
(Refer to the warranty book provided by the authorized MASH dealer.)