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Briggs and stratton repair manual pdf download. How to Repair Briggs and Stratton Engines Fourth Edition By Paul Dempsey |
Briggs and stratton repair manual pdf download
In order to keep all tables as simple as possible, only the basic engine models are listed unless there is a difference between them and special models. To make inspection of parts simple and accurate only the sizes at which they should be rejected are shown. This eliminates the necessity for figuring allowances for wear, etc.
If a part is worn larger inside dimension such as magneto bearing or smaller such as crankshaft journal surfaces than the given sizes, they should be rejected and replaced with new parts. Always use plug guages wherever possible to eliminate doubt and possible mistakes. You will find plug gauges illustrated in Section Special repair parts, valve guides, valve seat inserts, contact point plunger bushing, etc.
TEST - Analyze with proper testing equipment. Illustrations do not necessarily designate a particular model, and should only be used to identify repair procedures. Spark plug gap:. Condenser capacity:. All Models 3. Contact point gap:. Crankshaft End Play:. Dual Circuit - Rectifier Type Dual Circuit-Fuse Type AC Only Circuit DC Only Circuit Test Equipment Armature Air Gap Automatic Choke Auxiliary Drive Battery Cable Size Bearings Ball Bearing End Play Plain Bearing Breaker Box or Cover Removal and Installation Breaker Bushing Check and Replace Breaker Points Adjustment Breaker Plunger Check and Replace Breaker Shaft Remove and Install Breather Checking and Installation Camshaft Aluminum Cylinder Cast Iron Cylinder Replacing Float Valve Seat Flo-Jet Two Piece Adjustment Fuel Pump Idling Control Kerosene Conversion P Fuel Pulsa-Jet Adjustment Vacu-Jet Adjustment Check-Up Procedure Clutch, Rewind Starter Coils See Armature Compression Checking Condenser Testing and Installation Connecting Rod Counter Balance Systems Installation and Timing Crankcase Cover End Play Crankshaft Aluminum Cylinder Cylinder Head Assembly and Torque Cylinder Bearings Resizing Bore Dipper or Slinger Engine Model System Extended Oil Fill Fuel Recommendation Oil Seal Overhaul and Tune-Up Procedure Piston Rings Remote Controls Resizing Cylinder Bore Gear, Ring General Information Generator, Starter Governor Adjusting Governors Air Vane Governed Speed Limits Identification System Engine Ignition Flywheel Type Internal Breaker Flywheel Type External Breaker Rings, Piston Rod, Connecting Rotor, Magna-Matic Spark Plug Springs, Valve Electric, Gear Drive 12 Volt and Volt Electric Starter-Generator Electric, Belt Drive 12 Volt and Volt Nicad Gear Drive Vertical Pull Preface Tune-Up Chart Preface Tune-Up and Overhaul Procedure II, III Refacing Seats Remove and Install Replacing Seats Common Specifications Connecting Rod Reject Sizes Connecting Rod Screw Torque Crankshaft Reject Size Cylinder Bearing Reject Size Cylinder Bore Standard Size Cylinder Head Torque Ignition Specifications Main Bearing Tool Chart Oil Capacity Chart Piston Pin Reject Size Ring Gap Reject Size Stellite Valves and Rotators Valve Seat Inserts Valve Seat Counterbore Tools Valve and Tappet Clearance As the name indicates, there are four strokes to one complete power cycle: Fig.
Proper care must be taken to provide efficient ventilation when running an engine indoors. Fill the crankcase and air cleaner with proper oil before starting engine. See that oil level is maintained. Do not fill the gasoline tank while the engine is running.
Avoid spilling gasoline on a hot engine - This may cause an explosion and serious injury. However, the use of lead-free, or low lead, gasolines will result in reduced combustion deposits and normally will improve engine life.
Therefore, lead-free, or low lead, gasoline may be used, where available. We also recommend that gasoline be purchased in small quantities, not more than a day supply.
FRESH gasoline minimizes gum deposits, and also insures a fuel with volatility tailored for the season. Detergent oils keep the engine cleaner and retard the formation of gum and varnish deposits. No special additives should be used. More often under dirty operating conditions. In normal running of any engine, small particles of metal from the cylinder walls, pistons and bearings will gradually work into the oil. Dust particles from the air also get into the oil.
If the oil is not changed regularly, these foreign particles cause increased friction and a grinding action which shorten the life of the engine. Fresh oil also assists in cooling, for old oil gradually becomes thick and loses its cooling effect as well as its lubricating qualities.
The air cleaner should be serviced every 25 hours of engine operation. Dirty operating conditions re-quire more frequent servicing. Continued operation with a clogged cooling system may cause severe overheating and possible engine damage. The figures below show the blower housing removed and area to be cleaned.
This should be a regular maintenance Operation. By performing these steps you will either be sure that the engine is functioning properly or will know what major repairs should be made.
The steps are also covered in the Overhaul Procedure and will normally be performed as a part of the complete overhaul. Remove air cleaner, check for proper servicing.
Check oil level and drain. Clean fuel tank and lines if separate from carburetor. Remove blower housing, inspect rope and rewind assembly and starter clutch. Clean cooling fins and entire engine. Rock flywheel to check compression. Remove carburetor, disassemble and inspect for wear or damage. Wash in solvent, replace parts as necessary and assemble. Set initial adjustment. Inspect crossover tube or intake elbow for damaged gaskets. Check governor blade, linkage and spring for damage or wear, if mechanical also check adjustment.
Remove flywheel, check for seal leakage, both flywheel and PTO sides. Check flywheel key. Remove breaker cover and check for proper sealing. Replace or clean and adjust. Check plunger. Check coil, inspect all wires for breaks, damaged insulation. Be sure lead wires do not touch flywheel. Check stop switch and lead. Replace breaker cover, use sealer where wires enter. Install flywheel, time engine if necessary. Set air gap. Check for spark with tester. Remove cylinder head, check gasket, remove spark plug, and clean carbon, inspect valves for seating.
Replace cylinder head, torque to specified torque, set spark plug gap or replace plug if necessary. Replace oil and fuel, check muffler for restrictions or damage.
Adjust remote control linkage and cable if used, for correct operation. Service air cleaner, check gaskets and element for damage. Run and adjust mixture and top speed. Naturally these steps could be rearranged in different order but efficiency is obtained when the repair operations are performed in the same sequence every time.
The exact procedure will vary according to the engine model being repaired. The Overhaul Procedure can also be used as an index. For information on how to perform most operations listed, refer to the page number or operation. Be careful to locate the instructions covering the specific model being repaired.
Drain oil Air cleaner and stud Fuel pipe and tank assembly Air cleaner elbow or pipe Carburetor and linkage Carburetor intake elbow Muffler Check space between upper and lower carburetor body or carburetor to tank fit Check throttle shaft and bushings for wear Disassemble carburetor Electric starter V 12 V Blower housing Spin flywheel to check compression Spark plug-adjust gap.
This check-up will point up possible cause of future failures, which can be corrected at the time. The basic check-up procedure is the same for all engine models, while any variation, by model will be shown under the subject heading. Remove the spark plug. Spin the flywheel rap-idly with one end of the ignition cable clipped to the tester and with the other end of the tester grounded on the cylinder head.
If spark jumps the. Try a new spark plug. Check Compression NOTE: If engine runs but misses during operation, a quick check to determine if ignition is or is not at fault can be made by inserting the tester between the ignition cable and the spark plug A spark miss will be readily apparent While conducting this test on MagnaMatic equipped engines, Models 9, 14, 19 and 23, set the tester gap at.
Spin flywheel in reverse rotation counterclock-wise to obtain accurate compression check. The flywheel should rebound sharply, indicating satisfactory compression. On gravity feed Flo-Jet models, see that the shut-off valve is open and fuel flows freely through the fuel line.
On all models, inspect and adjust the needle valves. Check to see that the choke closes completely. If engine will not start, remove and inspect the spark plug. If plug is wet, look for - 1. Loose blade must be tight to shaft or adapter. Loose belt a loose belt like a loose blade can cause a back-lash effect, which will counteract engine cranking effort.
Starting under load See if the unit is disengaged when engine is started; or if engaged, does not have a heavy starting load. Check remote Choke-A-Matic control assembly for proper adjustment. Check interlock system for shorted wires, loose or corroded connections, or defective modules or switches. If plug is dry, look for - Vibration 1.
A simple check to determine if the fuel is getting to the combustion chamber through the carburetor is to remove the spark plug and pour a small quantity of gasoline through the spark plug hole. Replace the plug. If the engine fires a few times and then quits, look for the same condition as for a dry plug.
Cutter blade bent or out of balance Remove and balance Crankshaft bent - Replace Worn blade coupling - Replace if coupling allows blade to shift, causing unbalance. Mounting bolts loose - Tighten Mounting deck or plate cracked Repair or replace.
Power Loss 1. Since many varied types of equipment are powered by Briggs and Stratton engines, it is not possible to list all of the various conditions that may exist. Listed are the most common effects of equipment problems, and what to look for as the most common cause. Bind or drag in unit If possible, disengage engine and operate unit manually to feel for any binding action.
Grass cuttings build-up under deck. No lubrication in transmission or gear box. Excessive drive belt tension may cause seizure. Noise 1. Check for fit, or tightness.
No lubricant in transmission or gear box. It is possible to determine most of the important mechanical features of the engine by merely knowing the model number. A spark miss will be readily apparent. While conducting this test on Magna-Matic equipped engines. Models 9, 14, 19 and 23, set the tester gap at.
A flywheel type, having either an internal or external breaker system. The Magna-Matic system, having the armature and rotor behind the flywheel, and an external breaker system.
Spin the flywheel rapidly with one end of the ignition cable clipped to the tester and with the other end of the tester grounded on the cylinder head. If electrodes are burned away, or the porcelain is cracked, replace with a new plug. All Models Use an approved tester to test coils and condensers. It is held in place by a Belleville washer and nut or starter clutch. The flywheel key must be in good condition to assure proper location of the flywheel for ignition timing. DO NOT use a steel key under any circumstances.
Use only the soft metal key, as originally supplied. The keyway in both flywheel and crankshaft should not be distorted. Flywheels used are made of aluminum, zinc or cast iron. It is held in place by a nut or starter clutch. The flywheel key must be in good condition to insure proper location of the flywheel for ignition timing. Remove tape and move module ground wire to clear armature coil and laminations. Push module retainer away from laminations and push module off laminations, Fig. Stop switch wire is soldered to module and armature primary wires.
Unsolder to disconnect. Note that module retainer must be on back side of coil laminations, Fig. On cast iron engines, refer to page 9. Starter clutch used on rewind and wind-up starter has a right hand thread.
Use puller shown in Table 1. Leave nut loose on threads of crankshaft for puller to bear against, Fig. Small cast iron flywheels do not require a flywheel puller. See note below. For flywheels or larger diameter place a block of wood under flywheel fin to prevent flywheel turning while loosening nut or starter clutch.
Clamp engine base securely. Using a rawhide hammer. Several blows may be required on an extremely tight flywheel. If cover is bent or damaged it should be replaced to insure a proper dust seal. Breaker points should be checked for contact and for signs of burning or pitting. Points set too wide will advance spark timing and may cause kick back when starting.
Points gapped too close retard spark timing and decrease engine power. Remove Breaker Points Breaker point assemblies of style shown in Fig. Loosen adjusting lock screw and remove breaker point assembly. Breaker point assemblies of style shown in Fig. The condenser on these models also includes the breaker point.
The condenser is removed by loosening the screw holding the condenser clamp. To check, loosen breaker point mounting screw and move breaker points out of the way.
Remove plunger. Install Breaker Point Plunger Bushing To install the bushing, it is necessary that the breaker points, armature, crankshaft and starter be removed. Use reamer , to ream out the old plunger hole. See Fig. This should be done by hand. The reamer should be in alignment with the plunger hole. Drive the bushing , with driver until the upper end of the bushing is flush with the top of the boss.
Finish ream the bushing with reamer All reaming chips or dirt must be removed. Mount points to magneto plate or cylinder with lock screw. Fasten the armature lead wire to the breaker points with the clip and screw. If these lead wires do not have terminals, the bare end of the wires can be inserted into the clip and screw tightened to make a good connection. Do not let the ends of the wire touch the point bracket or magneto plate or ignition will be grounded.
Breaker Point Plunger If the breaker point plunger is worn to a length of. Plungers must be inserted with groove at the top when installed or oil will enter breaker box. When adjusting breaker point assemblies as shown in Fig. Breaker points assemblies as shown in Fig. Gap is. Inserting Plunger Fig.
Breaker points as shown in Fig. Tighten the mounting screw securely. Slip the open loop of breaker arm spring through the two holes in the arm, then hook closed loop of spring over the small post protruding from the cylinder.
Push flat end of the breaker arm into the groove in the mounting post. This places tension on the spring and pulls arms against the plunger. If condenser post is threaded, attach the coil primary wire and ground wire if furnished with the lockwasher and nut.
If primary wire is fastened to condenser with spring fastener, compress spring. Release spring. Lay the condenser in place and tighten the condenser clamp securely. Open the points and insert a piece of lintless paper. Draw the paper through the points.
Open points when removing paper so it will not tear, leaving paper between the points. Set air gap between the flywheel and armature as shown in Table 1. With armature up as far as possible, and one screw tightened, slip the proper gauge between armature and flywheel. Turn flywheel - until magnets are directly below the armature. Loosen the one mounting screw and the magnets should pull the armature down firmly against the thickness gauge.
Then tighten the mounting screws. Breaker Point Cover The breaker point cover, Fig. Cover should not be distorted so as to lose its seal around the outer edge. Replace if damaged.
NOTE: Engines used for winter applications use vented breaker covers. See Engine Parts List. The mounting holes in the armature laminations are slotted. Push armature up as far as possible and tighten one mounting screw to hold armature in place.
If sheared, replace. Check flywheel and crankshaft keyways for damage. If damaged, replace with new parts. Insert zinc key into keyway. Slip spring washer over crankshaft with hollow side toward flywheel. To tighten flywheel nut or starter clutch, reverse removal operation. These parts may be added to engines in the field if contaminated points are experienced. The sealer prevents oil from leaking into the breaker point area.
Replace Breaker Points Model Series , , , , , , 19D, 23D Mount the breaker point assembly, then tighten adjustment screw until the locknut has pushed the ferrule as far as possible toward the head of the adjustment screw.
This secures the adjustment screw firmly to the breaker point. Turn crankshaft until points open to widest gap.
This makes it easier to assemble and adjust points later if crankshaft is not removed. Remove condenser and upper and lower mounting screws. Loosen lock nut and back off breaker point screw. Reverse process to install. Adjust and Clean Breaker Points Turn the crankshaft until the points open to their widest gap. Turn breaker point adjusting screw points open to.
Tighten locknut, while holding adjustment screw, Fig. To clean points turn crankshaft until points are closed. Insert a piece of lintless paper and draw the paper between the points. Open the breaker points to withdraw the paper so the paper will not tear and allow a small portion to remain between the points.
Apply additional sealer at the point at which the primary wire passes under the breaker cover. This area must be re-sealed to prevent the entry of dust and moisture. Continue to tighten screws until flywheel loosens, Fig. NOTE: Use flywheel nut to protect crankshaft threads. Gasoline - Position armature bracket so mounting screws are centered in armature bracket and tighten screws, Fig.
Kerosene - Position armature bracket to the right, as far as it will go and tighten screws, Fig. Position flywheel on crankshaft taper.
Slip key in place. Install flywheel nut finger tight. Rotate flywheel and crankshaft clockwise until breaker points are just opening.
Use a timing light. When points just start to open, arrow on flywheel should line up with arrow on armature bracket, Fig. If arrows do not match, slip off flywheel without disturbing crankshaft position. Slightly loosen mounting screws holding armature bracket to cylinder, Fig. Slip flywheel back on crankshaft. Insert flywheel key. Move armature and bracket assembly to align arrows.
Slip off flywheel, tighten armature bracket bolts. Install key and flywheel. Tighten flywheel nut to torque specifications listed in Table No. Set armature air gap at. Crankshaft must not turn while doing this. Tighten key screw. Tighten flywheel nut. See Table 1. NOTE : Use flywheel nut to protect crankshaft threads. Set points at. Flywheel key screw should be finger tight. Flywheel nut may be put on loosely, Fig.
Removal and installation is as follows. Download our numbering system fact sheet or visit our model number locator tool. The most popular being the lawn mower engine , which every year requires maintenance and sometimes repair.
That sentiment rings true for the small engines featured in our snow blowers, pressure washers, portable generators and standby generators too. All rights reserved. Change Region. United States. New Zealand. Latin America. Easy Features. Portable Generator. Remove both spark plugs and insert a compressiongauge into either cylinder one cylinder at a time. Turnengine over with engine starter until there is no furtherincrease in pressure. Record this reading. Repeatprocedure on other cylinder and record that reading.
See example. If compression is poor, look for 1. Loose cylinder head bolts2. Blown head gasket3. Insufficient tappet clearance5. Warped cylinder head6.
Warped valve stems7. Broken connecting rods. Cylinder Leakdown TestThe cylinder leakdown tester, Tool , may beused to test the sealing capability of the compressioncomponents of each cylinder and quickly identify theproblem component. Cylinder Balance TestIf the engine is hard starting, runs rough, misses orlacks power, perform a cylinder balance test todetermine whether both cylinders are operating to theirfull potential.
Tools Required1. Tachometer, Tool Two Ignition Testers3. Screwdriver with insulated handleAttach ignition tester, Tool , between the sparkplug lead and each spark plug, Fig. Start and run engine running at top no load speed andnote spark at ignition testers. If the spark is equal atboth ignition testers, the problem is not ignition related. A spark miss will be readily apparent. Now note RPM ofengine.
Ground out one cylinder with screwdriver bycontacting alligator clip on ignition tester and a goodground on engine, Fig. Note RPM loss. Thenground out the other spark plug and note the RPM loss.
If the difference between the two cylinders does notexceed 75 RPM, the amount of work the two cylindersare doing should be considered equal. If the RPM loss is less than 75 RPM between cylindersand the engine runs poorly, the problem is common toboth cylinders. Things Which Affect Both Cylinders1. Crankcase vacuum3. Ignition timing Magnetron Ignition. Look to that cylinder for a problem.
See Example. CylinderThe cylinder balance test will also detect a cylinder thatis not functioning. When grounding out one cylinderthere will be no RPM loss. When the other cylinder isgrounded out the engine will stop. NOTE:A twin cylinder engine will run well on onecylinder as long as the power required forthe application does not exceed the powerproduced by the one cylinder. Equipment Affecting Engine OperationFrequently, what appears to be a problem with engineoperation, such as hard starting, vibration, etc.
Listed are the most common effects of equip-. Starting under load see if the unit is disengagedwhen engine is started; or if engaged, should nothave a heavy starting load. Check interlock system for shorted wires, loose orcorroded connections, or defective modules orswitches.
Engine Wont Stop1. Check equipment ignition stop switch. Check for loose or disconnected equipment stop. Grass cuttings build-up under deck. No lubrication in transmission or gear box. Excessive drive belt tension may cause seizure. Armature Testing All Models 2. Remove Armature 3.
Remove Armature Breaker Point Ignition 3. Magnetron Ignition Composite Style Armature 3. Remove Magnetron Module 3. Install Magnetron Module 4. Install Armature All models 5. Routing Ignition Wires 6. Remove Breaker Points 6. Install Plunger And Seal 7. Install Breaker Points 7. Adjust Breaker Points 8. Clean Breaker Points 8. Install Breaker Point Cover 8. Remove Flywheel 9. Under 9. Remove Flywheel All Models 9. Install Flywheel All Models Under Equipment To Test Stop Switches Testing With Digital Multimeter Check Single Terminal Toggle Switch Check Multiple Terminal Toggle Switch Check Stationary Stop Switch Magnetron Two versions of armatures have.
The composite style Magnetron armature must bereplaced as an assembly. The Magnetron module can only be installed onarmatures originally equipped with Magnetronmodule. Twin cylinder engines with type number below, were equipped with a flywheel magneto sys-tem consisting of an ignition armature and externalbreaker points and condenser mounted under abreaker box, NO TAG.
Armature Testing All ModelsThe condition of the ignition armature can be accurate-ly diagnosed using ignition tester, Tool , asdescribed in Troubleshooting in Section 1. Remove ArmatureAll Models The flywheel does not need to beremoved to service ignition except to check theflywheel key.
Remove Armature Breaker Point IgnitionOn engines with breaker points, it may be necessary toremove carburetor or carburetor and intake manifold. See Section 3 for removal procedure. Remove spark plug leads and spark plugs. Remove rotating screen and blower housing. Remove armature primary wire from breaker.
Magnetron Ignition Composite StyleArmature1. Remove armature screws and lift off armature,. Remove armature ground wire from stop switch. The armature has a front side identified by the largerivet heads. The module is installed with the retainer onthe back side small rivet ends , Fig. Assemble module to back side of armature. Depress spring and retainer and install armatureprimary wire, module wire and ground wire fromstop switch, Fig. Seal wires to back of armature with PermatexNo.
Install Armature All ModelsRotate flywheel so magnet is away from armature. Note position of spark plug wires in illustrations for thetype of armature being installed, Fig. Install Magnetron armature on engine as shown inFig. Magnetron composite style armatures have identifi-cations on the coil casing for correct assembly. Install breaker point ignition armature as shown inFig. The right hand mounting screw holds theground lead s on breaker point ignition systems.
Push armature away from flywheel and tighten onescrew to hold armature away from flywheel. Magnetron Ignition:. Loosen mounting screw so magnet will pull arma-ture down against thickness gauge. Torque screws to 25 in. Routing Ignition WiresThe ignition armature is mounted on No. Theshort spark plug lead goes through opening between 1 breather and back plate, under intake manifold andaround to 1 spark plug, Fig.
Magnetron groundwire, or armature primary wire breaker points usessame opening to stop switch terminal. Long spark pluglead is for 2 cylinder. Route through same opening inback plate, and under intake manifold to 2 spark plug,Fig. Remove Breaker Points1. Remove screw and breaker point cover. Remove condenser mounting screw. Loosen lock nut, then adjusting screw, Fig. Remove breaker points and condenser.
Remove ground wire, condenser wire and primary. Replace plunger if worn if fiber tip is loose. Replace plunger seal if torn or leaking. Install Plunger And Seal1. Assemble seal to plunger. Install plunger with fiber tip up, Fig.
Slide seal over plunger boss until it contacts cylinder. Install Breaker PointsPlace breaker point cover gasket on engine with tab toright of breaker plunger boss, Fig. For ease of assembly, install ground wire, condenserwire and armature primary wire to point terminal beforeinstalling points, Fig. Turn locknut counterclockwise on adjusting screw. Clean Breaker PointsTo prolong breaker point life, clean points as follows:with points open, place a piece of clean lintless paperbetween the points.
Rotate crankshaft until pointsclose on paper. Pivot paper on points, Fig. Repeat procedureuntil paper comes out clean. Do not pull paper out whilepoints are closed, as dirt will pull off paper onto points. Install Breaker Point CoverPlace Permatex or equivalent under armature prima-ry wire and ground wire on breaker point cover, Fig. Then put sealant on wires. Install breaker point cover,being sure wires are in notch of breaker point cover.
DO NOT strike flywheel with a hard object or ametal tool as this may cause flywheel to shatterin operation. Always use approved flywheelremoval tools. Under Remove debris guard, or booster fan, if so equipped. Remove blower housing and rotating screen. Place flywheel strap wrench, Tool , around. Place flywheel holder, Tool , on fan retainerwith lugs of flywheel holder engaging slots on thefan retainer, Fig.
Install flywheel puller, Tool Tighten puller screws equally until flywheel loosens,. Check flywheel forcracks, broken fins or keyway damage. Also checkcrankshaft keyways and taper for damage, Fig. Replace crankshaft, if damaged. Under 1. Install flywheel washer and nut or clutch.
Install flywheel washer and nut. Place Tool on fan retainer with lugs of fly-. Torque flywheel nut to ft. To remove fan, remove two fan retainer screws, fanretainer and fan. To install fan, place fan on to flywheel, aligning recessin flywheel with boss on back of fan.
Install fan retainerand screws, Fig. Torque screws to in. The meter may be used to measure Volts, Ohms, orAmperes, Fig. With switch in RUN posi-tion, no tone indicates no continuity incomplete cir-cuit. An incomplete circuit will be displayed as OL. Check Single Terminal Toggle Switch1. Disconnect stop switch wire from spade terminal.
Connect one meter lead to spade terminal and oth-. Connect one meter lead to spade terminal and. Disconnect equipment wiring harness from rotary. With key in OFF position there should be no. Connect one meter lead to stop switch terminal. M and other lead to a good ground.
If key switchis mounted to an insulated panel, use groundterminal G , Fig. Check Stationary Stop SwitchStationary stop switch is located on governor controlbracket.
Push down on wire retainer and remove stop. Current Style Type Nos. Previous Style Type Nos. Early Style Type Nos. Under 4. Remote Fuel Pump Carburetor 5. Engine Type Nos. Under 5. Under 6. Vertical Crankshaft All Models 6. Replace Nylon Throttle Shaft Bushings 8. Replace Steel Throttle Shaft Bushings 8. Assemble Fuel Pump Dynamic Governor Adjustment Type Nos. Governed Idle Adjustment Type Nos. Final Adjustment Type Nos.
Below Fixed High Speed Jet Carburetors Testing Solenoid Test Equipment Testing Equipment Wiring Inspect Anti-Afterfire System Electrical Replacing Hoses All three styles incorporate an independent high speed fuel circuit and a separate idle speed fuel circuit. An integral vacuum pulse type fuel pump allows remote fuel tank installations. The fuel pump will prime at 18 Fuel pump pressure is rated at 1.
Figures 3 6 show the major external differences between the three style carburetors. Components are NOTinterchangeable with previous carburetors. Vertical Crankshaft Engines: The current stylecarburetor may be used to replace earlier stylecarburetors ONLY if the throttle link is also replaced. Match case Limit results 1 per page.
Author tallalunn View 1. Tags: ignition section compression section carburetion section starters section lubrication section mufflers section alternators section engine disassembly section. Maintenance Air Guides Installation Alternators 7. AdjustmentsCrankcase Cover Checking Piston Assembly Testing Torque Specifications Preface. USE fresh gasoline. Stale fuel can gum carburetor andcause leakage. CHECK fuel lines and fittings frequently for cracks orleaks. Replace if necessary.
The engine exhaust from this productcontains chemicals known to the State of California to cause cancer, birthdefects, or other reproductive harm. Example: Model Type Code 01 This chart explains the numerical model designation system.
Example: A. The first two digits, 99, indicate the calendar year,
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