Honda Magna VF750C, Service Manual

Page: 53 / 306

Maintenance
Turn the crankshaft clockwise and align its "T 1 " mark with
the index mark on the right crankcase cover.
Make sure that No. 1 piston is at TDC (Top Dead Center) on
the compression stroke.
If it is not on the compression stroke, turn the crankshaft one
full turn (360 ° ) clockwise .
I nsert the feeler gauge between the valve lifter and the cam
lobe.
Check the valve clearances for the No. 1 cylinder intake and
exhaust valves using a feeler gauge .
Valve clearance:
IN:
0. 1 6 ± 0.02
mm
(0.006 ± 0.001
in)
EX: 0 . 25 ± 0.02
mm
(0.0 1 0 ± 0.001
in)
NOTE
•
Record the clearance for each valve for reference in shim
selection if adjustment is required .
Turn the crankshaft clockwise 1 /4-turn ( 90 ° ) and align its
"T2" mark with the index mark on the right crankcase cover.
Check the valve clearances for the No. 4 cylinder.
Turn the crankshaft clockwise 3/4-turn ( 2 7 0 ° ) and align its
"T 1 " mark with the index mark on the right crankcase cover.
Check the valve clearances for the No. 3 cylinder.
Turn the crankshaft clockwise 1 /4-turn ( 90 ° ) and align its
"T2" mark with the index mark on the right crankcase cover.
Check the valve clearances for the No. 2 cylinder.
Adjustment
Remove the camshafts (page 8-2 ) .
Remove the valve lifters a n d shims.
NOTE
•
Shims may stick to the inside of the valve lifter.
Do not allow the shims to fal l into the crankcase .
•
Mark all lifters and shims to ensure correct reassembly.
•
The valve lifter can be easily removed with a valve lap­
ping tool or magnet.
•
The shims can be easily removed with tweezers or a
magnet.
3-6
( 1 ) I N DEX MARK
( 2) "T 1 " MARK
( 1 ) The cylinder numbering is g iven below :
(3) LEFT
( 2 ) FRONT
(4) Firing order
(5) # 1 - 90 ° - # 4 - 270° - # 3 - 90 ° - # 2 - 270 ° - # 1
( 1 )VALVE LIFTER