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A

If the engine FAILS TO START, go to Step 3.

B. If the engine STARTS, go to Step 4.

Figure 4 — Recoil Handle

3.

Move the choke lever to the HALF CHOKE POSITION,
and pull the recoil handle (Figure 4) two (2) times.

If the engine STILL FAILS TO START, repeat 
Steps 1-3.

4.

Move the choke lever to the RUN POSITION by sliding it
to the right (away from the valve cover and under the
arrow).

5.

Allow the engine to warm up for two (2) minutes before
using the equipment.

If this engine is equipped with a primer bulb, use
the following instructions. 

1.

Press the primer bulb three (3) times, waiting two (2) 
seconds between each push (Figure 5).

Figure 5 — Pressing the Primer Bulb

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2.

Grasp the recoil handle (see Figure 4) and pull it slowly until
you feel slight resistance, then PULL QUICKLY. Repeat
pulling the recoil handle three (3) times, if necessary.

3.

If the engine FAILS TO  START, repeat Steps 1 and 2.

4.

Allow the engine to warm up for two (2) minutes before using
the equipment.

STOPPING THE ENGINE

1.

Remove the load on the engine, and let it run for 30 
seconds.

2.

Turn off the engine by moving the RUN/STOP SWITCH to
the STOP position.

3.

Close the fuel shut-off valve, if so equipped.

LOW PRESSURE SHUTDOWN SYSTEM

The engine is equipped with a low oil pressure sensor that shuts
down the engine automatically when the oil pressure drops below 8
psi. If the engine shuts down by itself and the fuel tank has enough
gasoline, check the engine oil level.

INITIAL STARTUP

A delay built in the shutdown system allows oil pressure to build
during starting. The delay allows the engine to run for about 10
seconds before sensing oil pressure.

SENSING LOW PRESSURE

If the system senses low oil pressure during operation, the
engine shuts down. As the system shuts down, the low oil light
comes ON (see Figure 2, page 6 ). However, once the engine
stops rotating, this light will go OFF.

RESTARTING THE ENGINE

If you try to restart the engine within 5 seconds after it shuts
down, the engine may NOT start. The system needs 5 to 10
seconds to reset.

NOTE: If you do restart engine after a shutdown and have not 

corrected the low oil pressure, the engine will run for 
about 10 seconds as described above,and then it will stop.

Recoil

Handle

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Summary of Contents for 190/220

Page 1: ...S W WH HI IC CH H I IF F N NO OT T F FO OL LL LO OW WE ED D C CO OU UL LD D E EN ND DA AN NG GE ER R T TH HE E P PE ER RS SO ON NA AL L S SA AF FE ET TY Y A AN ND D O OR R P PR RO OP PE ER RT TY Y O...

Page 2: ...SAFE OPERATION Study these RULES FOR SAFE OPERATION carefully before operating or servicing this equipment Become familiar with the OWNER S MANUAL and with the engine The engine can operate safely eff...

Page 3: ...f breathed in sufficient concentrations can cause unconsciousness or even death Operate this equipment only in the open air where adequate ventilation is available Do not insert any object through the...

Page 4: ...t parts and service always supply the complete model number and serial number of your unit as given on its data plate decal The warranty and replacement parts for this engine are included in the owner...

Page 5: ...fore each use and change the oil regularly Failure to use the correct oil or using dirty oil can cause premature engine wear and failure The recommended oils include the following During summer months...

Page 6: ...the crankcase Figure 1 2 Add engine oil until the oil level is to the point of overflowing Figure 1 Oil Fill Cap CHECKING ENGINE OIL 1 Check the engine oil level before starting the engine each time...

Page 7: ...pment STOPPING THE ENGINE 1 Remove the load on the engine and let it run for 30 seconds 2 Turn off the engine by moving the RUN STOP SWITCH to the STOP position 3 Close the fuel shut off valve if so e...

Page 8: ...remove the plug and drain the oil completely into a suitable container Figure 6 Figure 6 Oil Filter and Drain Plug 2 When the oil is drained install and tighten the oil drain plug 3 If your engine is...

Page 9: ...y enough clean engine oil to saturate the pre filter D Wrap the pre filter in a clean dry cloth and squeeze out the excess oil DO NOT TWIST Set the pre filter aside 4 To clean or replace the paper air...

Page 10: ...head Figure 8 Setting Spark Plug Gap CLEANING THE SPARK ARRESTOR SCREEN The engine exhaust muffler has a spark arrestor screen Inspect and clean the screen every 100 hours of operation or once each ye...

Page 11: ...1 CARBURETOR ADJUSTMENTS The carburetor of your engine is pre set at the factory The carburetor should not be tampered with because this will VOID THE EMISSION CONTROL SYSTEM WARRANTY If you experienc...

Page 12: ...DULE Every 8 Hours or 25 Hours or Every 50 Hours or Every 100 Hours or Every MAINTENANCE OPERATION or Daily Season Season Season Check Oil Level X Change Oil See Note 1 Change Oil Filter if so equippe...

Page 13: ...l additive such as STA BIL fuel stabilizer or an equivalent will prevent gum deposits from forming in the engine s fuel system 2 While the engine is still warm drain the oil from the crankcase Refill...

Page 14: ...14 Generac GN 190 220 Engine E EX XP PL LO OD DE ED D V VI IE EW W S SH HO OR RT T B BL LO OC CK K...

Page 15: ...5 2 14 Governor Gear Assembly A8929 1 15 Governor Gear C Ring 78645 1 16 Governor Spool A7811 1 17 1 8 NPT Pipe Plug 72683 1 18 Camshaft Assembly 98752 1 19 Crankcase Gasket 89096 1 20 Valve Stem Seal...

Page 16: ...51 1 33 M6 x 55mm Capscrew 57058 1 34 M6 x 25mm Capscrew 80318 1 35 M6 x 30mm Screw 80316 2 36A Intake Manifold 20136 1 37 M6 Lock Washer 22097 2 38 M6 Hex Nut 49813 2 39A Carburetor Air Box 21202 1 G...

Page 17: ...Head 90051 1 Gasket 35 M6 x 30mm Screw 80316 2 36B Intake Manifold 90948 1 39B Carburetor Air Box 91846 1 Gasket 41 Canal Cover 80303 1 42 Carburetor Manifold 78631 1 Gasket 43B Carburetor 190cc 98469...

Page 18: ...E En ng gi in ne e E EX XP PL LO OD DE ED D V VI IE EW W G GA AS S T TA AN NK K ITEM PART QTY DESCRIPTION 55 83512 2 M6 X 15 Taptite 57 95213 1 Tank Bracket 58 77395 2 M6 Flange Nut 59 95214 1 Tank C...

Page 19: ...ON 1 94820 1 Expansion Plug 2 91848 1 Oil Filter Gasket 3A 88758 1 Oil Blockoff 3B 84982 1 Oil Filter Adapter 4 92978 2 M6 X 18 Taptite 5 99236 1 Oil Press Switch 6 70185 1 Oil Filter ITEM PART QTY DE...

Page 20: ...Pin Male HSG 13 00185271 1 White Wire Assembly 14 22097 2 M6 Lockwasher 15 82981 2 M6 X 30 Taptite 16 81675 1 Ignition Coil 17 84274 1 Tinnerman Clamp 18 87221A 1 L O S Module 19 45756 1 M6 x 10mm Scr...

Page 21: ...M8 1 25 X 20 98 90192 1 Carb Wear Washer 99 92059 1 Stepper Motor 21 G Ge en ne er ra ac c G GN N 1 19 90 0 2 22 20 0 E En ng gi in ne e E EX XP PL LO OD DE ED D V VI IE EW W S ST TE EP PP PE ER R M...

Page 22: ...ou should however be aware that Generac Corporation may deny you warranty coverage if your utility or lawn and garden equipment engine or a part thereof has failed due to abuse neglect improper mainte...

Page 23: ...ed part which is scheduled for replacement as required maintenance in the Owner s Manual shall be warranted for the period of time prior to first scheduled replacement point for that part If the part...

Page 24: ...e and does not apply to engines or parts which have been subjected to improper or unauthorized installation misuse negligence accident overloading over speeding improper maintenance improper repair or...

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