adjust carburetor honda em7000is ?

[henni]

In preparing for next hurricane season, we replaced several almost new EM7000is/EM7000isa carburetors.

All generators have about 50 to 100 hours on the LCD panel but had previously sat in storage and had questionable condition of jets and passages so new carburetors went into each one and now they start and run steady in normal and ECO mode. Have plugged each into 240v transfer switches and they run easily over 36,000 (3 ton) heatpumps using only 2,400 watts of power. Tested also each 120v outlet with various compressors and pumps, no problems. All handled surges over 5,000 watts with no issues.

One question remains: All Em7000's run in normal mode (non-ECO) at about 3,350-3,400 rpm and in ECO mode about 2,300-2,400 rpm. I thought/assumed that 3,600 rpm is normal in non-ECO mode.

Can this speed be adjusted ?

How ?

 

[Dave Sherman]

Why would you need to adjust it? Inverter generators don't run at a fixed speed. Conventional generators with two-pole alternators have to run at a constant 3600 RPM to produce 60 Hz AC, inverter generators can run at variable speeds. The non-eco mode keeps the engine at a high speed for sudden heavy startup loads like air conditioners that may stall the engine, and to keep the AC side from dropping out as the engine is trying to throttle up to match the load.

 

[henni]

OK, again, assuming here for discussion sake that the normal rpm is in the 3,400 ballpark in non-ECO mode ? I'm fine with that, having never seen, heard or read anything that confirms this.

Since all our equipment is DC powered (all pumps, all compressors, all motors), we do not have a "sudden heavy startup load" on anything. All systems are 240 volts and use DC power which means all systems start slowly and ramp up as needed.

 

[jhellwig]

You are talking about a fuel injected inverter generator. Rpm is of no consequence.


How and why are you replacing carburetors on a fuel injected generator anyways?

 

[henni]

The EM7000is is not fuel injected.

Otherwise it could not be using a carburetor.

 

[boraticus]

240 volts DC?

 

[jhellwig]

Originally Posted By: henni
The EM7000is is not fuel injected.

Otherwise it could not be using a carburetor.


You’re right. I was thinking the eu7000is.

 

[henni]

Originally Posted By: boraticus
240 volts DC?


We use only 240v systems, all engines, compressors, motors and pumps are inverters. They are all connected to DPDS 40-60 amp breakers with 2 hot and one ground.

Back to original question:

Are all honda carburetor systems non-adjustable?

 

[SilverFusion2010]

Originally Posted By: henni
Originally Posted By: boraticus
240 volts DC?


We use only 240v systems, all engines, compressors, motors and pumps are inverters. They are all connected to DPDS 40-60 amp breakers with 2 hot and one ground.

Back to original question:

Are all honda carburetor systems non-adjustable?


Two hot and one ground is AC

Leave the carb alone