User manual MTD OEM-190-766

[. . . ] Operating & Maintenance Instructions Model Series Covered in This Manual 19E400 19F400 19G400 192400 196400 197400 250400 256400 257400 Model Type Code Note: General Model Series numbers noted above include many specific numbers like the ones on your engine. To get replacement parts or technical assistance in the future, write your engine Model, Type, Code and date of purchase here. 17 PRINTED IN U. S. A. Month Day Year WARNING Briggs & Stratton does not approve or authorize the use of these engines on 3-wheel All Terrain Vehicles (ATVs), motor bikes, aircraft products or vehicles intended for use in competitive events. Use of these engines in such applications could result in property damage, serious injury (including paralysis), or even death. [. . . ] Use only correct tools. WARNING WARNING MUFFLER • Do not strike the flywheel with a hammer or hard object because the flywheel may later shatter during operation. • Do not tamper with governor spring, links or other parts to increase engine speed. Note: On Model Series 19E400, 19F400, 19G400 engines use only spark plug, Part No. 496018. WARNING Replacement parts for the muffler must be the same and installed in the same position as the original parts, otherwise fire can occur. AIR COOLING SYSTEM We recommend cleaning the air cooling system every 100 hours. CLEAN OUT DEBRIS AND CHAFF If muffler is equipped with spark arrestor screen, remove screen for inspection. Replace screen if damaged or plugged. SPARK PLUG Use only Briggs & Stratton Spark Tester (part number 19368) to check for spark. Note: In some areas, local . 030” (0. 76 mm) law requires using resistor WIRE GAGE spark plug to suppress ignition signals. If this engine was originally equipped with resistor spark plug, use same type RESISTOR P/N 802592 for replacement. STANDARD P/N 492167 COMBUSTION DEPOSITS We recommend that after every 100-300 hours you have an authorized Briggs & Stratton Service Dealer remove combustion deposits from the cylinder, cylinder head, top of piston, and around valves. Engine parts should be kept clean to reduce the risk of overheating and ignition of accumulated debris. CLEAN CLEANING DEBRIS CAUTION: Do not use water to clean engine parts. Use a brush or dry cloth. WARNING Daily or before every use, clean accumulated debris from engine. Keep area around and behind muffler free of any combustible debris. CLEAN CLEAN SPARK ARRESTER Finger Guard 13 Linkage, Springs, Controls Muffler, Spark Arrester 268h19, 25 - page 13 (Black) Screen angle and frequency: 45. 0000, 150. 0000 ADJUSTMENTS THROTTLE ADJUSTMENT If the engine does not start or if it runs roughly, the remote throttle control may need adjustment. See your authorized Briggs & Stratton dealer or follow the instructions below. CARBURETOR ADJUSTMENT WARNING The manufacturer of the equipment on which this engine is installed specifies top speed at which the engine will be operated. Air cleaner and air cleaner cover must be assembled to carburetor before starting engine. (Air cleaner is shown removed in illustration below for clarity ONLY. ) The carburetor on this engine is equipped with an idle mixture valve with a limiter (see inset), which allows some adjustment. Idle speed is not adjustable. WARNING Prevent unintentional starting. Before performing adjustments: • Remove spark plug wire from spark plug. • Disconnect battery at negative terminal (only engines with electric start). TO ADJUST CARBURETOR TO ADJUST MANUAL FRICTION THROTTLE THROTTLE CONTROL FIXED IDLE SPEED SCREW IDLE MIXTURE SCREW WITH LIMITER WING NUT CONTROL PLATE [1] • Loosen or tighten wing nut on control plate until throttle control moves with some resistance and still remains in desired position when engine is running. [2] [3] To adjust idle speed, start engine and warm up about 5 minutes. With engine running, place equipment throttle control in SLOW position. Rotate carburetor throttle lever against the idle speed screw and hold it. Then rotate idle mixture valve full travel clockwise and then counterclockwise. DO NOT force beyond limits. TO ADJUST REMOTE THROTTLE [4] CASING CLAMP SCREW WIRE [5] [6] CASING Then, position idle mixture valve in middle of travel. [. . . ] Engine or equipment parts broken by excessive vibration caused by a loose engine mounting, loose cutter blades, unbalanced blades or loose or unbalanced impellers, improper attachment of equipment to engine crankshaft, overspeeding or other abuse in operation. A bent or broken crankshaft, caused by striking a solid object with the cutter blade of a rotary lawn mower, or excessive v-belt tightness. Routine tune-up or adjustment of the engine. Warranty is available only through service dealers which have been authorized by Briggs & Stratton Corporation. Your nearest Authorized Service Dealer is listed in the “Yellow Pages” of your telephone directory under “Engines, Gasoline” or “Gasoline Engines, ” “Lawn Mowers, ” or similar category. Briggs & Stratton Engines Are Made Under One Or More Of The Following Patents: Design D-247, 177 (Other Patents Pending) DES. [. . . ]