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GZ50N
( )
848H7H93A0 804
G G
B B
OWNER’S MANUAL
ENGINE
GZ50N
GB-1
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GZ50N SAFETY FIRST Contents Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and 1. Parts location .................................................. 2 for this reason you are requested to read all such instructions 2. Specifications ................................................. 3 carefully and follow them without fail. 3. Symbols on the machine ..............
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GZ50N 2. Specifications Model GZ50N Type Air-cooled 2-stroke engine 3 Displacement 50.6 cm G Max. output 2.4 / 9000 kW/rpm B Idle speed 2800 200 rpm Fuel Mixture (Gasoline 50 : Oil 1) Carburetor Walbro Diaphragm type Spark plug NGK CMR7H Overall size L x W x H 206 x 270 x 256 mm Dry weight 4.2 kg Fuel tank capacity 0.80 L Specifications are subject to change without notice. 3. Symbols on the machine For safe operation and maintenance, symbols are carved ■ EMISSION CONTROL in relief on the m
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GZ50N 4. Fuel ■ FUEL 4. Pour in the rest of gasoline and agitate again for at least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary for the • Gasoline is very flammable. Avoid smoking or bringing engine to last long. Be careful that, if the agitation is insuffi- any flame or sparks near fuel. Make sure to stop the en- cient, there is an increased danger of early piston seizing gine and allow it cool before refueling the unit. S
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GZ50N 5. Operation STARTING ENGINE STOPPING ENGINE 1. Feed fuel into the fuel tank and tighten the cap securely. 1. Release the throttle lever and run the engine for half a 2. Push the primer pump several times until overflown fuel flows minute. out in the clear tube. 2. Shift the ignition switch to the STOP position. G B IMPORTANT • Except for an emergency, avoid stopping the engine while pulling the throttle lever. ADJUSTING THROTTLE CABLE 3. Move the choke lever to the closed position. • Th
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GZ50N 6. Maintenance Every Every Every 25 50 100 System/components Procedur Note Before hours hours hours use after after after fuel leaks, fuel spillage wipe out fuel tank, air filter, fuel filter inspect/clean replace, if necessary idle adjusting screw see adjusting replace carburetor idling speed if necessary spark plug clean and readjust GAP: .025 in (0.6 ~ 0.7 mm) plug gap replace, if necessary cylinder fins, intake air cooling vent clean muffler, spark arrester, cylinder c
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GZ50N 6. Maintenance MUFFLER IMPORTANT WARNING • If waste gets stuck and causes blockage around the • Inspect periodically, the muffler for loose fasten- intake air cooling vent or between the cylinder fins, it G ers, any damage or corrosion. If any sign of ex- may cause the engine to overheat, and that in turn B haust leakage is found, stop using the machine may cause mechanical failure on the part of the en- and have it repaired immediately. gine. • Note that failing to do so may result in
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GZ50N 9. Troubleshooting guide Case 1. Starting failure CHECK PROBABLE CAUSES ACTION fuel tank → incorrect fuel → drain it and use correct fuel fuel filter → fuel filter is clogged → clean carburetor adjustment screw → out of normal range → adjust to normal range sparking (no spark) → spark plug is fouled/wet → clean/dry → plug gap is incorrect → correct (GAP: 0.6 ~ 0.7 mm) spark plug → disconnected → retighten Case 2. Engine starts but does not keep running/hard re-starting CHECK PROBABLE CAUSE
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GZ50N LIMITED WARRANTY EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT, Husqvarna Zenoah Co., LTD / ZENOAH AMERICA, INC., THROUGH ANY Husqvarna Zenoah Co., LTD / ZENOAH AMERICA G DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL AND EACH SUBSEQUENT PURCHASER, B ANY PART OR PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR WORKMANSHIP. EMISSION-RELATED PARTS ARE: THE CARBURETOR ASSEMBLY, COIL ASSEMBLY, ROTOR, SPARKPLUG, AIR FILTER, FUEL FILTER,
