Altitude Kit Installation - iGen2200, iGen2500, iPro2500

By Jackie Green on Thu Nov 05, 20


Engine performance decreases as altitude increases. Proper operation can be ensured by installing an altitude kit when required. See the table below to determine when an altitude kit is required. Operating this generator without the proper altitude kit installed may increase the engine’s emissions and decrease fuel economy and performance.

ALTITUDE KIT FOR 79CC GASOLINE INVERTER - Westinghouse Part No. 140540
  Altitude Range   Kit Part Number   Number on Jet
  0-2000ft   Not required   N/A
  2000-3000ft   140540 - A   75
  3000-6000ft   140540 - B   74
  6000-7000ft   140540 - C   73

ALTITUDE KIT FOR 98CC GASOLINE INVERTER - Westinghouse Part No. 140542
  Altitude Range   Kit Part Number   Number on Jet
  0-2000ft   Not required   N/A
  2000-3000ft   140542 - A   75
  3000-6000ft   140542 - B   74
  6000-7000ft   140542 - C   73

Please note:
  • This high altitude kit is to be used at elevations above 2000 feet.
  • At elevations above 7000 feet, the engine may experience decreased performance, even with the high altitude kit.
  • If the carburetor is replaced, the proper high altitude kit jet will need to be installed into the replacement carburetor.
  • The warranty may be void if necessary adjustments are not made for high altitude use.
  • DO NOT throw away any carburetor jets. You may need them again if you change altitude of operation. 

Perform kit procedures in a well ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before proceeding. Do not smoke near generator.
It is recommended to completely drain all the gasoline from the fuel tank and carburetor float. See owners manual for proper instructions on how to safely drain fuel.

To install a high altitude kit, follow these Operation Steps:

  Step 1: Make sure the engine is “off” and the generator is cold.
Step 2: Remove the 2 screws that secure the engine maintenance panel to the frame. Slide off the spark access cover and push out on panel to remove.
Step 3: Remove the three bolts at the bottom of the engine access panel and the single bolt near the front air vents.
Step 4: Remove the 3 screws at the top of the housing.
Step 5: Remove the 2 screws at the top of the control panel and the 2 screws under the control panel.
Step 6: Remove the screw in the middle of the engine control switch. Pull the front panel off.
Step 7: Using a flat head screw driver remove the clip located under the rubber fuel collector.
Step 8: Remove the 6 screws that hold the muffler to the inverter. Remove the muffler.
Step 9: Remove the two screws on the opposite side of the handle. Pull off the entire housing to gain access to the carburetor.
Step 10: Pull off the breather tube. Make sure to keep in clean area away from debris.
Step 11: Remove the two nuts that secure the air filter to the carburetor.
Step 12: Remove screw in middle of the air cleaner. 
Step 13: Remove the bolt inside the air filter and the bolt on the right side that secures it to the engine mount. Remove the air filter assembly.
Step 14: Loosen screw on choke connection and pull out the choke wire. Be careful not to bend.
Step 15: Remove screw that holds choke wire to the carburetor.
Step 16: Remove the two screws on the stepper motor and pull it off the carburetor.
Step 17: Push up the gas tank and slide off the carburetor off of the stud bolts.
Step 18: Place container under to carburetor to catch fuel in the bowl. Remove bolt at bottom of carburetor float bowl. 
Step 19: Refer to tables on page 1, install the proper high altitude jet on the carburetor, and assemble the carburetor properly, the torque of bolt on carburetor is: 8 10N.m. DO NOT DISCARD OLD CARBURETOR JET.
Step 20: Make sure to replace o-ring (provided) where the bowl meets the carburetor. Also replace the bolt seal (provided) on the bottom of the carburetor. 
Step 21: Slide the carburetor back onto the stud bolts.
Step 22: Reinstall the stepper motor. Make sure to properly align the shaft.
Step 23: Reinstall the choke cable and clip to the top of the carburetor. Slide the cable through the eye of the choke shaft and tighten screw.
Step 24: Slide the air cleaner onto the stud bolt and tighten the two bolts to secure it to the carburetor.
Step 25: Replace the two bolts that secure the air filter to the engine.
Step 26: Place air filter back in and secure cover with screw.
Step 27: Reinstall the breather tube.


Step 28: Reinstall the inverter housing. Refer to steps 2-7 for placement of bolts, clips and screws to secure housing.


Step 29: Start generator to make sure it properly operates. For troubleshooting contact our service team.


NOTE: If you move the generator back to a location below 2000 feet of elevation, you will need to reinstall the original carburetor jet. PLEASE KEEP ALL PARTS YOU REMOVED FOR FUTURE USE.