ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S22
4. CHECKING, DISASSEMBLING AND SERVICING
[1] CHECKING AND ADJUSTING
(1) Engine Body
Compression Pressure
[D1503-M, D1703-M, D1803-M, V2003-M, V2203-M, V2403-M,
V2403-M-T, D1703-M-BG, V2003-M-BG, V2003-M-T-BG,
V2203-M-BG, V2403-M-BG]
1. Operate the engine for warming-up.
2. Stop the engine.
3. Disconnect the 2P connector from the stop solenoid to stop the
fuel supply.
4. Remove the air cleaner, the muffler and all injection nozzles.
5. Set a compression tester with the adaptor to the nozzle hole.
6. Make sure that the stop lever is set at the stop position
(non-injection).
7. Crank the engine with the starter to measure the compression
pressure.
8. Do the steps 5 through 7 again for each cylinder.
9. If the measurement is below the allowable limit, apply a small
quantity of oil to the cylinder wall through the nozzle hole. Then
measure the compression pressure again.
10. If the compression pressure stays below the allowable limit,
examine the top clearance, valve and cylinder head.
11. If the compression pressure increases after you apply oil,
examine the cylinder wall and piston rings.
• Examine the compression pressure with the specified
valve clearance.
• Always use a fully charged battery for you do this test.
• Variances in cylinder compression values must be less
than 10 %.
M00000003ENS0016US1
Compression pressure
Factory spec.
3.24 to 3.72 MPa
33.0 to 38.0 kgf/cm
2
470 to 540 psi
Allowable limit
2.55 MPa
26.0 kgf/cm
2
370 psi
To Next Page
Loading...
Need help?
General
