Suzuki DR650 Valve Adjustment
http://www.youtube.com/watch?v=KHjHIXxoIew
Valve adjustment is an important routine maintenance task that isn’t that difficult to do.
Pre 1996 DR650 Valve clearance specifications:
IN. 0.08 – 0.13mm (0.003 – 0.005in)
EX. 0.08 – 0.13mm (0.003 – 0.005in)
1996- DR650 Valve clearance (when cold):
IN. 0.08 – 0.13mm (0.003 – 0.005in)
EX. 0.17 – 0.22mm (0.007 – 0.009in)
VALVE CLEARANCE
Inspect Initial 1,000km (600miles, 2 months) and
Every 6,000km (4,000miles, 12 months
Excessive valve clearance results in valve noise and insufficient valve clearance results in valve damage and reduced power. At the distances indicated above, check and adjust the clearance to the specification.
The procedure for adjusting the valve clearance is as follows:
Valve clearance is to be checked when the engine is cold. Both intake and exhaust valves must be checked and adjusted when the piston is at Top-Dead-Center (TDC) on the compression stroke.
Remove the frame covers, seat and fuel tank.
Remove the spark plug and valve inspection caps, intake and exhaust.
Remove the valve timing inspection plug and magneto cover cap.
Turn the crankshaft counterclockwise with the box wrench to set the piston at T.D.C. on the compression stroke. (Turn the crankshaft until the “T” line (1 on image to right) on the magneto rotor is alighted with the center of the hole on the magneto cover.)
Insert the thickness gauge into the clearance between the valve stem end and the adjusting screw on the rocker arm.
If clearance is off the specification, bring it into the specified range using the correct feeler gauge
Securely tighten the lock nut after adjustment is completed.
CAUTION:
Both right and left valve clearances, should be as closely set as possible. Reinstall the spark plug, valve inspection caps, valve timing inspection plug and magneto cover cap.
TB
