XY Powersports XY500UTV, Руководство по обслуживанию

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13. TROUBLESHOOTING
13-23
（
12
）
Reaction slowly when in acceleration.
Possible defective part
：
1
、
fuel containing water
；
2
、
air intake pressure sensor and throttle position
sensor
；
3
、
spark plug
；
4
、
throttle valve body and idle speed side air duct
；
5
、
input air duct
；
6
、
idle
speed valve
；
7
、
fuel injector
；
8
、
ignition timing
；
9
、
muffler
Overhaul
：
Ref no Operation Test result Next Steps
yes Examine and repair
air input system
1 Check air cleaner if is clogged.
no next
yes next
2 Contact fuel pressure meter(contact front point of oil
input pipe of injector), starting engine, check the fuel
pressure whether is around 300kPa or not
no examine and repair
oil support system
yes next
3 Check spark plug, look its type and gap if accords with
standard.
no Adjust or replace
yes Clean related parts
4 Disassembly idle speed valve and check thethrottle
valve body, idle speed valve and idle speed side air
duct whether have carbide accumulated or not.
no next
yes next
5 Check air intake pressure sensor throttle position
sensor and their wiring whether works regularly or not.
no examine and repair
wiring or replace
sensor
yes Fault replacement
6 Disassembly injector, and check the injector by special
washing analysis instrument if exists the phenomena of
leaks, clogs or flux discrepantly.
no next
yes Replace fuel
7 Check fuel and observe the fault if caused after fueling
no next
yes next
8 Check engine ignition timing if accords with standard.
no examine and repair
ignition timing
yes next
9 Check the exhaust gas from muffler if exhausts
smoothly
no Repair or replace
muffler
yes Diagnosis help
10 Contact with EFI commutator, open ignition switch,
check ECU5#
、
10#
、
23# stitch, the power whether
supply normal or not, check 2#
、
21# stitch whether is
putting up iron or not.
no Examine and repair
relevant wiring
（
13
）
No power and poor performance when in acceleration.
Possible defective part ： 1 、 fuel containing water ； 2 、 air intake pressure sensor and throttle position
sensor ； 3 、 spark plug ； 4 、 ignition coil; 5 、 throttle valve body and idle speed side air duct ； 6 、 input
air duct ； 7 、 idle speed valve ； 8 、 fuel injector ； 9 、 ignition timing ； 10 、 muffler
13