0382578 JOHNSON CARBURETOR ASSEMBLY COMPLETE

When using starting fluid, follow the manufacturer's instructions carefully, use it sparingly and spray it only while cranking the engine. Also, do not store starting fluid containers in the cab. Failure todo so, could result in an explosion and/or fire and possible personal injury.
Excessive ether can cause piston and ring damage. Use ether for cold starting purposes only.
3. As soon as the engine starts, allow the engine to idle for two or three minutes, or until the water temperature gauge indicator has begun to rise.4. Do not apply load to the engine or increase engine speed until the oil pressure gauge indicates normal. Oil pressure should rise within 15 seconds after the engine starts.5. Operate the engine at low load until all systems reach operating temperature. Check all gauges during the warm-up period.Starting With Jumper Cables
Batteries give off flammable fumes that can explode.Improper jumper cable connections can cause an explosion resulting in personal injury.Prevent sparks near the batteries. Sparks could cause vapors to explode. Do not allow jumper cable ends to contact each other or the engine.Do not smoke when observing the battery electrolyte levels.Always wear protective glasses when working with batteries.Electrolyte is an acid and can cause personal injury if it contacts skin or eyes.
Engines installed without engine-to-frame ground straps can be damaged by electrical discharge.To prevent electrical discharge damage, check to make sure the engine's electrical system has an engine-to-frame ground strap. For engines which have the alternator connected to an engine component, the ground strap must connect that component to thframe.Some engines have starter-to-frame ground straps. But many of these starters are not electrically grounded to the engine. They have electrical insulation systems. For this reason, the starter-to-frame ground strap may notbe an acceptable engine ground.When boost starting, refer to the instructions that follow to properly start the engine.Your engine may have a 12 or 24 volt starting system. Use only the same voltage for boost starting. Use of a welder or higher voltage will damage the electrical system and is not recommended.
When using an external electrical source to start your truck engine, turn the START switch off and remove the key and turn off all electrical accessories before attaching cables.When using jumper cables always connect POSITIVE (+) cable to POSITIVE (+) terminal of battery which is connected to starter solenoid and NEGATIVE (-) cable from external source to starter NEGATIVE (-) terminal. If not equipped with a starter NEGATIVE terminal, connect to the engine block.Do not reverse the battery cables. The alternator can be damaged.Attach ground cable last and remove first.
1. Connect one end of the cable to the POSITIVE (+) terminal of the battery being started. Connect the other end to the POSITIVE (+) terminal of the power source.2. Connect one end of the other cable to the NEGATIVE (-) terminal of the power source. Connect the other end to the starter NEGATIVE (-) terminal or to the engine block. This prevents potential sparks from igniting combustible gases produced by some batteries.3. Start the engine.4. After the engine starts, disconnect the cable from the starter NEGATIVE (-) terminal or engine block. Disconnect the other end from the NEGATIVE (-) terminal of the power source.5. Disconnect the cable from the POSITIVE (+) terminal of the battery on the engine being started. Disconnect the cable from the POSITIVE (+) terminal of the power source.Electrical System
Grounding Practices
Proper grounding for vehicle and engine electrical systems is necessary for proper vehicle performance and reliability. Improper grounding will result in uncontrolled and unreliable electrical circuit paths.Uncontrolled engine electrical circuit paths can result in damage to main bearings, crankshaft journal surfaces, and aluminium components.Uncontrolled electrical circuit paths can cause electrical noise which may degrade vehicle and radio performance.To insure proper functioning of the vehicle and engine electrical systems, an engine-to-frame ground strap with a direct path to the battery must be used. This may be provided by way of a starting motor ground, a frame to starting motor ground, or a direct frame to engine ground.In any case, an engine-to-frame ground strap must be run from the cylinder head grounding stud to the frame and negative battery post.
Cylinder Head-to-Battery (-) Ground
Alternate Cylinder Head-to-Battery (-) GroundThe cylinder head must have a wire ground to battery as shown in the above illustrations.Ground wires/straps should be combined at ground studs dedicated for ground use only. At "Every 12,500 miles (20 125 km) or 250 hours," Inspect/Check all engine grounds. All grounds should be tight and free of corrosion.All ground paths must be capable of carrying any conceivable fault currents, and an awg # 0 or larger wire is recommended for the cylinder head strap.The engine alternator must be battery (-) grounded with a wire size adequate to handle full alternator charging current. The 3176 comes equipped with an alternator ground wire. The ground wire is attach to the cylinder head grounding stud (1).
When boost starting an engine, follow the instructions in "Starting the Engine" in the Operation Section to properly start the engine.This engine may be equipped with a 12 or 24 volt starting system. Use only equal voltage for boost starting. The use of a welder or higher voltage will damage the electrical system.