4 - FUEL AND LUBRICATION
5 - OPERATING INSTRUCTIONS
4-1. FUEL
Use regular grade unleaded gasoline mixed with Genuine McCulloch 40:1
Never use straight gasoline in your unit. This will cause permanent engine damage and void the man- ufacturer’s warranty for that product. Never use a fuel mix-
ture that has been stored for over 90 days.
If
not use any
4-2. MIXING FUEL
Add oil to an approved fuel container followed by the gaso- line to allow incoming gasoline to mix with oil. Shake con- tainer to ensure thorough mix.
Lack of lubrication voids engine warranty. Gasoline and oil must be mixed at 40:1.
4-3. FUEL MIXING TABLE
GASOLINE | McCulloch 40:1 Ratio | |||
Lubricant | ||||
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1 | U.S. Gal. | 3.2 oz. | 95ml (cc) | |
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5 | Liters | 4.3 oz. | 125ml (cc) | |
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1 lmp. Gal. | 4.3 oz. | 125ml (cc) | ||
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| Mixing | 40 Parts | Gasoline to | |
| Procedure | 1 Part Lubricant | ||
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1ml=1cc
4-4. RECOMMENDED FUELS
Some conventional gasolines are being blended with oxy- genates such as alcohol or an ether compound to meet clean air standards. Your McCulloch engine is designed to operate satisfactorily on any gasoline intended for automo- tive use including oxygenated gasolines.
4-5. FUEL AND LUBRICATION SYMBOLS
Gasoline and Oil
Mix 40:1
5-1. STARTING A COLD ENGINE
NOTE: To minimize load on engine during starting and
1.Move ignition switch to the “RUN (I)” position (Fig. 5- 1B).
2.Your unit is designed with a 3 position choke: CHOKE
“ ”, START “ ”, and RUN “ ”. Move choke lever to CHOKE “ ” position (Fig.
3.Prime the carburetor. Pump the primer bulb (A) 10 times (Fig.
4.Grip handle firmly – depress safety trigger (B) & throt- tle trigger (C) to the FULL THROTTLE position (Fig. 5- 1E).
5.Pull starter rope until resistance is felt (about 4”) (Fig.
6.Move choke lever to START “ ” position (Fig.
7.Pull starter rope again 4 times while trigger is in the full throttle position.
8.Once engine starts, leave in the START “ ” position for 10 seconds.
9.Move the choke to RUN “ ” position (Fig.
10.If engine fails to start, repeat steps 1 through 9. NOTE: If engine fails to start after repeated attempts, refer to trouble shooting section.
NOTE: Always pull starter rope straight out. Pulling starter at an angle will cause rope to rub against the eyelet. This friction will cause the rope to fray and wear more quickly. Always hold starter handle when rope retracts. Never allow rope to snap back from extended position. This could cause rope to snag or fray and also damage the starter assembly.
5" (13cm)
A
B
C
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8
9