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  • Title Page- Valve Adjustment

  • Original Author- Carl Kulow

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Valve Adjustment

Valkyrie Valve Adjustment

Documented by Carl Kulow

Picture's by LaMonster


Allen sockets – 5mm, 6mm


short extension

oil drain pan


sockets – 17mm

box wrench – 10mm

feeler gauges


 Start Here

1.      Engine cold!!!

2.      Bike on sidestand

3.      Transmission in neutral!!!

4.      Remove both cam end covers, 3 inch square covers with one rounded side, 2 bolts each (5mm hex) at the rear end of each valve cover

5.      Place an oil drain pan under the left valve cover (~1/8 cup will drain), newspaper under the right valve cover (a few drops will drain)

6.      Remove the rubber plugs from the center of the valve cover bolts

7.      Remove both valve covers (6mm hex) – be sure the washer/sealing ring comes off with each bolt!

8.      Remove the timing cover, 3 inch round cover directly below the radiator, 3 bolts (5mm hex)

Hint: Any of the covers removed above may stick slightly and you will need to tap them gently with a wooden or plastic screwdriver handle or the palm of your hand.

9.      With the transmission in neutral, turn the crankshaft (17mm) where you removed the timing cover, counterclockwise (there is an arrow on the timing plate) and align the T1,2 mark on the timing plate to the index mark on the outside at 3 o’clock

10.  Be certain the No.1 piston is at TDC (Top Dead Center)!!! – the intake and exhaust valves for No.1 should wiggle slightly in and out. If not, turn the crankshaft a full 360 degrees counterclockwise to the same T1,2 mark and check the valves again for “wiggle”


 Mvc-340l.jpg (69569 bytes)                                       Mvc-341l.jpg (79766 bytes)

Cylinder Location (the spark plug wires are also numbered as given below)

Mvc-342l.jpg (62265 bytes)                               Mvc-344l.jpg (56715 bytes)

Right side, front to rear = 1, 3, 5

Left side, front to rear   =  2, 4, 6

Valve Clearance

Intake = .006in.  (.15mm)

Exhaust = .009in.  (.22mm)

Valve Location

Intake Valves are on the top (take air/gas in from the carbs)

Exhaust Valves are on the bottom (exhaust to the exhaust pipes)

  v5.JPG (56767 bytes)

11.  Insert the correct feeler gauge between the valve stem and the adjuster screw. There should be slight drag on the feeler gauge – be sure that you do not have the gauge canted or curved as you are measuring. You can use the “go, no go” method – a .008in. gauge should not go into the .006 intake; a .011 should not go into a .009 exhaust if adjusted properly. A .007 gauge will go into the intake and a .010 gauge will go into the exhaust, but will give a too tight drag.

12.  If any valve needs adjusting, loosen the adjuster lock nut with a 10mm box wrench and turn the adjuster screw with a screwdriver to get the correct clearance – slight drag on the feeler gauge.

13.  Slide the box wrench over the shaft of the screwdriver and hold the adjuster screw with the screwdriver while tightening the lock nut with the 10mm box wrench.

14.  After tightening, double check the clearance.

15.  Turn the crankshaft 120 degrees to align the T3,4 at the index mark. Check for wiggle at No.4 valves. Adjust if necessary.

16.  Turn the crankshaft 120 degrees to align the T5,6 at the index mark. Check for wiggle at No.5 valves. Adjust if necessary.

17.  Turn the crankshaft 120 degrees to align the T1,2 at the index mark. Check for wiggle at No.2 valves. Adjust if necessary.

18.  Turn the crankshaft 120 degrees to align the T3,4 at the index mark. Check for wiggle at No.3 valves. Adjust if necessary.

19.  Turn the crankshaft 120 degrees to align the T5,6 at the index mark. Check for wiggle at No.6 valves. Adjust if necessary.

20.  Install the timing cover, 3 bolts (5mm hex)

21.  Wipe any oil off the valve cover gaskets


Hint: You may need to apply a small amount of TRV or similar sealer to each outside end of the cam housing. There are two spots at each end, top and bottom, of the round cam housing where the factory applied some sealant. In any case, be sure that none of the factory applied sealant is balled up and potentially keeping the valve cover gasket from sealing tightly.


22.  Below and to the front of the right valve cover, remove the two sets of wire cables from the wire holder and gently pull out any extra slack to make it easier to reinstall the right valve cover.


Hint: Do not over tighten any of the bolts to the 5 different covers when reinstalling. These are relatively small and fine threaded bolts and could easily break or strip. Keep your palm or fingers close to the head of the ratchet when tightening these bolts.


23.  Insert the six valve cover bolts and washers (6mm hex).

24.  Insert the wire cables back into the holder

25.  Install the left valve cover, 6 bolts and washers (6mm hex)

26.  Install both cam end covers, 2 bolts each (5mm hex)

27.  Insert the black rubber plugs into the valve cover bolts

28.  Run the engine; check for oil leaks

The author has done his best to produce accurate information
however; neither he nor the editor nor the web publisher can assume
liability for any damage or injury caused by any errors or omissions in this manual
Use good sense and at your own risk!   Message Board    ShopTalk    Just Pics    Valkyrie Hot Links