Linhai ATV 500-D T3 EFI, Service Manual

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CHAPTER 3 ENGINE
LH500ATV-D T3 EFI SERVICE MANUA 19.0
CHAPTER 3 ENGINE PAGE. 3- 128
Remove air cleaner outlet hose and throttle body outlet hose
3.6.2.3.6 Cleaning Procedure
If there is cover on the bottom, it may be removed and cleaned using carburetor
cleaner (3M make recommended). Once the throttle body cover is removed, spray
the throttle-body cleaner inside the shipping air passage, and use the brushes to
gently dislodge the dirt, gum and varnish that are present. Do not let the bye pass
holes be blocked by dirt or foreign particles.
3.6.2.3.7 Throttle Body Installation
Reverse the procedure for installation noting the following:
Adjust accelerator cable play
Check to ensure that all removed parts are back in place.
Reinstall any necessary part which have not been reinstalled
3.6.2.3.8 Precautions
Do not submerge TPS in any cleaning fluid.
Always open the throttle valve using the throttle cable or lever.
Do not hold the valve at opening position by inserting tools or any sticks into the
bore. The valve may be warped and the bore may be scratched. This type of
damage may keep the throttle from opening easily or fully closing.
3.6.2.3.9 Handling - DOs & DONTs
ACTION REASON
DO: Use care during assembly of harness to
throttle body.
Avoid terminal damage.
DO: Avoid any liquid contamination in the
throttle body area.
Ensure proper operation.
DO: Unload and install units one at a time from
packing trays.
Damage may be done to critical components.
DO: Return any dropped, damaged, or suspect
material with a tag that describes the problem.
(Only warranty cases)
Ensure fast and correct diagnosis of root cause.
DO: Remove and discard protective caps just
before assembling mating components.
Protects system from contamination, which can
prevent proper operation.
DO: clean the by pass passage after removing
bottom cover
To ensure good idle stability
DO NOT: Use any dropped or impacted unit. Internal damage may have occurred or
emissions settings may have been upset.
DO NOT: Store units without protective caps in
place.
Contamination may impair correct operation.
DO NOT: Ship or store near saltwater without
protection.
Corrosion buildup may impact proper
operation.
DO NOT: Exposed to environmental conditions
(Moisture)prior to complete vehicle installation.
Corrosion buildup may impact proper
operation.
DO NOT: Apply any voltage other than system
voltage for testing.
Damage could occur
DO NOT: Apply excessive band clamp loading Damage could occur.
DO NOT: Remove packing in a way that allows
contact between parts.
Minimum air leakage could be affected and/or
other damage could occur.
DO NOT: Release the throttle cam abruptly from
any position without the throttle linkage
attached.
Damage could occur.
DO NOT: Let the by pass holes be blocked by
dirt or foreign particles.
This could effect idle stability
DO NOT: Rake, stage, or handle parts in a
manner that allows contact between parts.
Damage will occur.
3.6.2.4
Engine Cool ant Temper ature Sensor
3.6.2.4.1 Description and Working Principle
This sensor is used in water cooled engines. It provides a resistance that varies as a function of
temperature within prescribed tolerance limits. The sensor has a