Briggs & Stratton 750 DOV Series Spécifications Page 16
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12
1
1
Adjust Valve Clearance
NOTE: Check valve clearance while the engine
is cold.
1. Insert a narrow gauge such as a
screwdriver, rod, or pencil (A, Figure 1-9)
into the spark plug hole (B) until it touches
the piston (C). Cut away view is shown.
2. Observe the movement of the gauge and
turn the flywheel (D) clockwise past top
dead center on the compression stroke
until the piston has moved down the bore
0.25 in. (6.4 mm).
3. Valve clearance is checked by placing a
feeler gauge (E) between the lever arm
adjusting screw (F) and the valve cap (G).
4. Loosen the adjusting screw nut (H) with a
wrench.
5. Using an allen wrench, turn the adjusting
screw (F) to obtain the correct clearance.
6. Tighten the adjusting screw nut (H) to the
torque values listed in Section 12 - Engine
Specifications.
7. Recheck clearance after tightening nut.
Figure 1 - 9
Adjust ReadyStart Choke Link
Perform this adjustment while the engine is cold.
1. Using pliers, bend adjusting loop (A,
Figure 1-10) on choke link (B) until choke
lever gap (C) measures 0.000 - 0.060 in.
(0.000 - 1.52 mm). When properly
adjusted, the choke plate (D) will be fully
closed. Reshape wire to keep it parallel
(E) after adjusting loop.
Figure 1 - 10
- 700/750 Series DOV 1
- Air-Cooled Engines 1
- • MODEL 090600 4
- • MODEL 100600 4
- • MODEL 100800 4
- SAFETY INFORMATION 8
- ENGINE MAINTENANCE 11
- Oil Change 12
- Air Filter 12
- Spark Plug 12
- Cooling System 13
- Charging Battery 13
- ENGINE ADJUSTMENTS 14
- Adjust Valve Clearance 16
- Adjust ReadyStart Choke Link 16
- Adjust Armature Air Gap 17
- Adjust Alternator Air Gap 18
- Flywheel Brake 19
- SECTION 2 - TROUBLESHOOTING 21
- SYSTEMS CHECK 22
- 2) Check Carburetion 23
- 3) Check Compression 23
- ELECTRICAL SYSTEMS 24
- Alternator Testing 25
- Starter Motor Testing 26
- Battery Testing 27
- Check Battery and Cable Sizes 27
- Check Battery Installation 28
- Testing Battery 28
- SECTION 3 - EXHAUST SYSTEM 29
- EXHAUST SYSTEM 30
- FUEL TANK 34
- Inspection 35
- Installation 35
- CARBURETOR 36
- Remove Carburetor 37
- Disassemble Carburetor 37
- Inspect and Clean Carburetor 37
- Assemble Carburetor 37
- SECTION 5 - GOVERNOR SYSTEM 39
- GOVERNOR SYSTEM 40
- Top No-Load RPM 41
- Governor Service 41
- CYLINDER HEAD AND VALVES 44
- SECTION 7 - STARTERS 47
- ELECTRIC STARTER 48
- 12 Volt Starter 49
- REWIND STARTER 50
- SECTION 8 - LUBRICATION 53
- LUBRICATION SYSTEM 54
- Oil Fill Tube and Dipstick 55
- Breather 55
- Oil Slinger Lubrication 55
- SECTION 9 - CYLINDER AND SUMP 57
- CYLINDER AND SUMP 58
- Inspect Cylinder 59
- Inspect Sump 60
- Main Bearings 60
- Oil Seals 60
- SECTION 10 - CRANKSHAFT 61
- CRANKSHAFT 62
- Figure 11 - 1 66
- Disassemble 67
- Assemble 68
- ENGINE SPECIFICATIONS 72
- MODEL 090600 72
- MODEL 100600 74
- MODEL 100800 76
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