Genuine Scooter Company Buddy 170, Руководство по обслуживанию

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11. RPM low or stall during acceleration
General trouble location: 1. Water in fuel; 2. Inlet pressure sensor & air throttle sensor; 3, Spark plug; 4. Air
throttle & idle air bypass; 5. Air intake; 6.ISC ; 7. Nozzle; 8. Ignition timing;
9. Exhauster.
Procedure for general diagnoses:
No. Operating Procedure
Detection
Results
Subsequent Steps
Yes
Check the air intake
system.
1 Check the air filter for any jam.
No Next step
Yes Next step
2
Connect a fuel pressure gauge before the fuel inlet of the nozzle;
start the engine to check the fuel pressure at 300kPa or so during
the idle status.
No
Repair the fuel supply
system.
Yes Next step
3
Check the spark plug in the cylinder and its model and gap
conformable to specifications.
No
Adjustment or
replacement
Yes Clean relevant parts.
4
Remove the ISC and check the air throttle, the ISCand the idle
air bypass for any carbon deposition.
No Next step
Yes Next step
5 Check the inlet pressure sensor, the air throttle and circuits.
No
Correct circuits or
replace any sensor.
Yes
Replace the defective
nozzle.
6
Disassemble the nozzle and check any leakage or jam in the
nozzle with a nozzle cleaner & analyzer.
No Next step
Yes Change fuel.
7 Check fuel and observe any trouble attributed to fuel just added.
No Next step
Yes Next step
8
Check if ignition timing of the engine is conformable to
specifications.
No Correct ignition timing.
Yes Next step
9 Check the exhauster for exhaust normally discharged.
No
Repair or replace the
exhauster.
Yes Diagnosis assist
10
Connect an EMS adapter and press the power switch to check
voltages at Pins
1#, 19#, and 29#
; check grounding at Pins
8#
﹐
35
#
and
36#.
No
Repair the relevant
circuits.
22