Engine Speed Does Not Increase - Yamaha MZ360 Service Manual
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Also See for MZ360:
- Owner's manual (140 pages) ,
- Service manual (20 pages) ,
- Owner's manual (62 pages)
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ENGINE SPEED DOES NOT INCREASE
ENGINE SPEED DOES NOT INCREASE
No.
1
Check the spark plug for dirt and check the spark plug gap. Clean, adjust, or replace the spark plug.
2
Check the air filter element for dirt.
Check the compression pressure.
3
(Refer to "MEASURING THE COMPRESSION PRES-
SURE" on page 3-1)
Check the valve clearance.
4
(Refer to "ADJUSTING THE VALVE CLEARANCE" on
page 2-12)
Check the valve face and valve seat for wear.
5
(Refer to "VALVE" on page 3-37)
Check if the marks on the crankshaft, camshaft, and bal-
ancer shaft are aligned.
6
(Refer to "INSTALLING THE VALVE LIFTER, BALANCER
SHAFT, AND CAMSHAFT" on page 3-50)
Check if there is seizure, wear, or damage on the piston,
piston ring, or cylinder.
7
(Refer to "PISTON, CAMSHAFT, CRANKCASE, AND
CRANKSHAFT" on page 3-44)
Check if the main passages, such as the main jet in the car-
8
buretor, are clogged.
Check if there is air suction from the carburetor joint, gas-
9
ket, or throttle shaft.
Checking steps
6-3
Possible remedy
Clean.
Too high:
Decarbonize the combustion chamber if
there is carbon deposits.
Too low:
Next checking steps.
Adjust the valve clearance.
Resurface or replace the valve face and
valve seat.
Correct.
Rebore or replace.
Clean the parts.
• Tighten the carburetor nuts securely.
• Replace the carburetor joint or gasket
with a new one.
1
2
3
4
5
6
7
8
9
10
- Quick Links:
- Replacing the Engine Oil
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