Section 04
ENGINE
Sub-Section 09
(ROTARY VALVE, COOLANT PUMP AND RESERVOIR)
04-09-7
– Turning crankshaft, bring
MAGneto side
piston
to Top Dead Center as done before with a
crankcase having a ridge.
– For opening mark, first align 360° line of degree
wheel with BOTTOM of
MAGneto side
inlet
port. Then, find 132° line on degree wheel and
mark crankcase at this point.
Step
: Align 360° line of degree wheel here
Step
: Find 132° on degree wheel and mark here
1. Opening mark
2. Bottom of
MAGneto
inlet port
– For
closing
mark, first align 360° line of degree
wheel with TOP of
MAGneto side
inlet port.
Then, find 52° line on degree wheel and mark
crankcase at this point.
Step
: Align 360° line of degree wheel here
Step
: Find 52° on degree wheel and mark here
1. Top of
MAGneto
inlet port
2. Closing mark
– Position rotary valve on shaft splines to have
edges as close as possible to marks.
NOTE :
Rotary valve is asymmetrical. There-
fore, try turning it inside out then reinstall on
splines to determine best installation position.
Apply injection oil on rotary valve before closing
rotary valve cover.
To Time Rotary Valve Exactly to
Specifications
NOTE :
If desynchronization (out of spec.) is
unknown, install rotary valve to determinate
it before proceeding with the following.
First Method
Turn crankshaft to bring
MAG
piston to TDC.
Scribed marks of crankshaft and upper crankcase
must aligned. These marks were scribed while
determinating desynchronization.
Install brass gear on rotary valve shaft with its
marked spline 4 positions (splines) away for one
degree of desynchronization. Turn in the opposite
direction of desynchronization. For instance, a ro-
tary valve is retarded by 2.5°, turn brass gear by
10 splines counterclockwise.
Second Method
Turn crankshaft to bring
MAG
piston to TDC.
Scribed marks of crankshaft and upper crankcase
must aligned. These marks were scribed while
determinating desynchronization.
For each degree of desynchronization, rotary
valve shaft should be turned in the opposite direc-
tion by about 5 splines on the rotary valve gear.
Note position of rotary valve gear mark when
brass gear disengage worm gear of crankshaft at
removal of rotary valve shaft. From this position,
turn shaft accordingly then reinstall.
For instance, take a valve advanced by 2°.
132
°
F01D2JA
1
2
1
2
1
2
52
°
F01D2KA
1
1
2
2
1
2
Содержание FORMULA III
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Страница 142: ...Section 04 ENGINE Sub Section 08 LIQUID COOLING SYSTEM 04 08 3 599 and 779 Engines A06C0NS Loctite 592 5 3 4 1 2 6 7...
Страница 168: ...Section 04 ENGINE Sub Section 11 CARBURETOR AND FUEL PUMP 04 11 12 HAC SYSTEM A03I0BS...
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Страница 189: ...Section 05 TRANSMISSION Sub Section 03 DRIVEN PULLEY 05 03 2 Skandic WT A22D11S Anti seize lubricant 4 5 19 2...
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Страница 315: ...Section 08 STEERING FRONT SUSPENSION Sub Section 02 SUSPENSION AND SKI SYSTEM 08 02 4 WRONG POSITION A06G0XA...
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