Section 04
ENGINE
Sub-Section 11
(CARBURETOR AND FUEL PUMP)
04-11-5
1. Allen screw
2. Arm moved aside
3. Locking screw and adjusting nut removed
All Models
The position of the needle in the throttle slide is
adjustable by means of an E-clip inserted into 1 of
5 grooves located on the upper part of the needle.
Position 1 (at top) is the leanest, 5 (at bottom) the
richest.
NOTE :
The last digit of the needle identifi-
cation number gives the recommended posi-
tion of the E-clip from the top of the needle.
Example :
6DH4-3
Needle
Recommended position
identification
of the E-clip
from top
1. Lean
2. Rich
5, Throttle Slide
The size of the throttle slide cut-away affects the
fuel mixture between 1/8 to 1/2 throttle opening.
A certain amount of richness is needed for that
particular range because this is where the transi-
tion from the low speed to the high speed circuit
takes place.
1. Low cut-away (high air speed)
2. Rich mixture
3. High cut-away (low air speed)
4. Lean mixture
8, Main Jet
The main jet installed in the carburetor has been
selected for a temperature of
−
20°C (0°F) at sea
level. Different jetting can be installed to suit tem-
perature and / or altitude changes. Always check
spark plug tip and / or piston dome color to find
out correct jetting.
A06C0KA
2
3
1
'
A00B2GA
1
2
3
4
5
Lean
Rich
1
3
2
4
A00C01A
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...
Страница 200: ...Section 05 TRANSMISSION Sub Section 05 BRAKE 05 05 3 Skandic WT A22D12S 1 15 16 12 17 5 11 7 9...
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