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- 11
Connect fuel enrichment
device wire lead with
battery for 5 Minutes.
Connect ethylene pipe
With Air current
Faulty fuel enrichment device
with fuel increment loop
and blow.
No air current
Clogged carburetor
Poor Engine Performance in Hi-speed Range or Slow Speed Rising
Run vehicle at high engine speed
(on an flat asphalt road)
No rise of
Engine speed
Clogged air filter
Clogged fuel hose and filter
Clogged fuel tank cap breather hole
Clogged muffler
Engine speed rises
Check ignition timing
Incorrect Faulty pickup coil
Faulty CDI unit
Correct
Measure compression pressure
with pressure meter
Normal compression pressure
Low or no
Compression
Pressure
Worn Cylinder and piston ring
Faulty cylinder gasket
Check carburetor
Clogged
Clogged carburetor
Not clogged
Check spark plug
Stained damage and color changed
Spark plug stained and damaged
Improper spark plug heat value
Normal Spark Plug
Check the engine for
overheating
Overheated Faulty mixture gas
Faulty fuel
Carbon deposit in combustion Chamber
Too much advanced ignition timing
Overheated
Accelerate or continuous
high-speed operation
Cylinder knock Carbon deposit in combustion chamber
No cylinder knock
Clutch slip