Yamaha EF4000DE 4,000 Watt 251cc OHV 4-Stroke Gas Powered Portable Generator With Electric Start (CARB Compliant)

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Price: $2,024.10 $2,012.10   

Product Feature

• 4, 000 Watt maximum AC output/3, 500 watt rated AC output
• Dual voltage; provides the versatility of 120 and 240 volt operation
• New combustion chamber design; improves power output, efficiency and reduces exhaust emissions
• USFS approved spark arrestor offers quiet operation and keeps sparks from exiting exhaust system, reducing chance of fires caused by an errant spark
• CARB compliant

Product Description

EF4000DE Yamaha 4000 Watt Premium Electric Start Generator

Yamaha EF4000DE 4,000 Watt 251cc OHV 4-Stroke Gas Powered Portable Generator With Electric Start (CARB Compliant) Review

I was initially looking at the inverter gensets, but but decided to go with the Yamaha EF4000DE standard type since it had the 240V capability. I split the legs in a Reliance 8 circuit manual transfer unit and carefully selected the circuits on each side to balance the power out as much as possible. My well pump also runs on 240V. I also performed the tri-fuel conversion where I run primarily on my bulk propane. It works like a charm. Initially, I did have an issue with the unit not running smoothly through the full range, but after some troubleshooting I found out that the gas regulator (conversion kit) was a little too big for the generator, so I ended up putting a throttle valve in between the regulator output and the carb. It solved the problem and I now have smooth operation from idle to full load.
I did not purchase this from Amazon, but saw it listed here with no comments and thought I'd give it a well deserved thumbs up. This is a quality unit. I can also run my electronic devices and computers off this without a problem.

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