Parts Inspection And Service; Valve Clearance Adjustment; Chapter 3 Engine Page - Linhai 2004 ATV 260 Service Manual

CHAPTER 3A ENGINE

3.2 PARTS INSPECTION AND SERVICE

3.2.1VALVE CLEARANCE ADJUSTMENT

NOTE:
Valve clearance adjustment should be made
with the engine cool, at room temperature.
When the valve clearance is to be measured or
adjusted, the piston must be at Top Dead Center
(T.D.C.) on the compression.
1. Remove :
Crankcase cover
2. Remove :
Spark plug
Valve cover (intake side)
Valve cover (exhaust side)
3. Remove:
Timing check plug
4.Measure:
Valve clearance
Out of specification → Adjust.
Valve clearance (cold):
260 / 300: Intake valve 0.08- 0.12m m
Exhaust valve 0.16- 0 .20mm
400: Intake valve 0.08- 0.12m m
Exhaust valve 0.13- 0.16mm
Measurement steps:
Rotate the
counterclockwise to align the slit "a" on the rotor
with the stationary pointer "b" on the crankcover
1 when the piston is Top Dead Center (TDC).
Measure the valve clearance by using a feeler
gauge.
6. Adjust
Valve clearance
260/ 300 / 400 cc
primary fixed sheave
ATV SERVICE MANUAL09.0
CHAPTER 3 ENGINE PAGE. 3A- 9