Specifications

48

（I）Enginemalfunction
Malfunction
phenomenon
Malfunction
system
Reason Solvingmethod
Noisefromengine

Noisyvalves 1. Gaponvalveistoobig
2. Springonvalveisbroken
3. Rockerarmiswornorbroken
Adjust
Change
Change
Noisefrompiston 1. Pistonwornout
2. Cylinderwornout
3. Carbonbuildupincombustion
chamber
4. Pistonpinorpinholewornout
5. Pistonringswornout
Change
Change
Clean
Change
Change
Change
Noisefromtiming
chain
1. Chainstretched

2. Chainwornout

3. Chainadjusterproblem
Changechain&
sprocket
Changechain&
sprocket
Repairorchange
Noisefromclutch 1. Splineofcrankshaftdamaged
2. Splineofclutchdamaged
Changecrankshaft
Changeclutch
Noisefrom
Crankshaft
1. Bearingnoise
2. Needlebearingdamaged
3. Gaptoobig
Change
Change
Change
NoisefromCVT 1. Beltlooseorwornout
2. DrivingportionofCVTdamaged
Change
Change
Noisefrom
transmission
system
1. Geardamaged
2. Inputandoutputshaft
damaged
3. Bearingwornout
4. Bushingwornout
Change
Change

Change
Change
Enginelackspower Fuelsystem 1. Octaneratingistoolow

2. Fuelflowrestriction
Useminimum
recommendedoctane
Cleanfuellinesand
system
Clutchslipping Transmission
system
1. Pulleyfacesworn
2. Springonclutchisweak
3. Beltwornout&loose
Change
Change
Change
Gearshiftingdifficult Gearboxorgear
shift
1. Operatinggeardamaged
2. Shiftrodtwisted
3. Shiftdrumwornout
4. Shiftrodnotadjustedcorrect
Change
Change
Change
Adjust
Throttlebodyproblems Startingproblem 1. Blockageinairintake
2. Blockageinintakemanifold
3. Looseelectricalconnector
4. Throttlecablebroken
Clean
Clean
Tighten
Replace
Idleandlowspeed
notstable
1. Lowfuelpressure
2. Airinletchannelblocked
3. Airinletbypassblocked
4. Throttlevalvenotclosingfully
5. Idlescrewadjustmentincorrect
Correct
Clean
Clean
Adjust
Adjust