11)Valve Adjustment, Springer.
A) Place machine on cycle stand.
B) Remove Fuel tank.
C) Remove spark plug.
D) Remove points cover.
E) Remove Exhaust & Intake rocker covers.
F) Select 5th-gear, rotate engine to "TDC" compression stroke.
G) Insert correct thickness feeler gauge between rocker & valve.
H) On Non-Adjustable rockers, you'll have to carefully compress the valve/valve spring in order to remove/refit winkler cap.
I) Repeat "H" until correct clearance is obtained.
J) Refit, Reverse "A"-”F#”.
         NOTE: In most cases, it is easier to do this with cylinder-head off.

When adjusting valves on engines fitted with Non-Adjustable “racing" rocker-arms, you must have a supply of Winkler Caps on hand to perform this job.  To ease costs of Labor & Freight, the Cylinderhead can be removed and shipped (prepaid) to your Ducati specialist to have the work completed.  Winkler Caps are exchanged rather than sold in most cases.
Those engines fitted with Adjustable rocker-arms can be adjusted with the cylinderhead in place with out problem.  Just make sure the adjuster lock-nut is tight, but not over tightened.  Feeler gauge should have a smooth light drag to it.
Old Ducati engines were normally fitted with "mousetrap" valve springs (.152" gauge wire are the heaviest), while today new coil springs w/titanium retainers are available. We highly suggest you use them, as when fitted correctly, they are better.  After some mileage, the mousetraps will sack-out (loss of pressure), and will need replacing to avoid early valve float at high rpm.
Below: Pre-Daytona 1994 Testing at Willow Springs. Testing is key to winning races.
L-R: DM350-04261 WCB691, WCBR6 (350), WCBR5 (250), WCBR9 (350), LS500GP