Yamaha EF2400iS - 2000 Watt Inverter Generator

I live near downtown Houston, and I bought the EF2400iS about a month before the storm. I also picked up a 50 foot 20 amp 10 gauge extention, several 1x3 splitters and several 12-14 gauge 25-50 foot cords, and 3 NATO style 5 gallon Jerry cans. I was ready for Gustav, but got nailed by Ike...trees down all over with a two-week guess on power outage duration.

I cranked up the Yamaha on Saturday afternoon and it's handled everything I have thrown at it: 6000BTU window AC, modern refrigeratorfreezer, chest deep freezer, multiple lamps with compact flourescents, portable phones, DSL modem, router and network switch, two laptops, HD satellite TV box and 26" LCD TV, small TVDVD and a cord over the fence to my neighbor for light duty.

When it's all cranked up, the Yamaha follows suit and we don't even see voltage surges. Also, I've only used about 20 gallons of fuel after 6 days (days 1 and 2 were light duty and refrigerator only). Also I have unplugged the AC and refrig and freezer to run electric chain saw, leaf blower, Skill saw, table saw and drill etc to cleanup the branches and rebuild the back fence.

I changed the break-in oil after about 40 hours, and I will again after the next hundred or so. One problem on day 4: the gen just quit and would not restart! Upon inspection of the spark plug, I found a hairline crack around the insulator. My guess is the crack was there from the start, but until the heat broke through the resistor, it ran fine. Luckily an auto parts store was open (running on gen power) and I got two replacement ACDelco plugs.....MAKE SURE YOU HAVE SPARES...plugs and oil. Also, thanks Yamaha for the included spark plug wrench! So that hour was the only downtime.

I've been around the neighborhood, and others are running some really noisy machines that don't come close to the load the Yamaha is handling, and people are freaked about how quiet it is..can't hear it from the front of the house even at full load.

One other note...since I have central AC, when I got the generator, I bought a Frigidaire FAA065P7A 6000 BTU window unit. This model (and some others) has a special circuit that limits start-up surge and other voltage swings...must be a bank of capacitors or something, but it is essential for gen power...no circuit breaking surges when at full load.

Well, it's not city-power, but my family of five is hardly doing without thanks to this machine along with gas range, gas water heater, copper phone lines (no thanks Comcast, your customers don't have phone, TV or internet). Next up for the Yamaha: laundry duty...two new front load Samsungs...gas dryer, of course. Now I just have to figure out how to secure this thing in my garage after this ordeal is done. I'm thinking about a Greenlee metal tool box for securing cable pulling tools at job sites...any other ideas?

I live near downtown Houston, and I bought the EF2400iS about a month before the storm. I also picked up a 50 foot 20 amp 10 gauge extention, several 1x3 splitters and several 12-14 gauge 25-50 foot cords, and 3 NATO style 5 gallon Jerry cans. I was ready for Gustav, but got nailed by Ike...trees down all over with a two-week guess on power outage duration.

I cranked up the Yamaha on Saturday afternoon and it's handled everything I have thrown at it: 6000BTU window AC, modern refrigeratorfreezer, chest deep freezer, multiple lamps with compact flourescents, portable phones, ... more

Maybe I got the one bad one in 1000. Bought it in Apr 2007 and I have less than 10 hours on it. At first it ran great. Would run my RV air conditioner and frig with no problems. With no warning my RV would not accept the power it was producing. The generator would race, my RV circuitry would cycle on and off and the AC would bog down. Now it won't run anything, not even a shop light or a jig saw. Starts fine and the AC light comes on, but when I plug anything in to the AC receptacles, nothing. Taking it in next week for service, so I'll reserve final judgement until after I get it back

Maybe I got the one bad one in 1000. Bought it in Apr 2007 and I have less than 10 hours on it. At first it ran great. Would run my RV air conditioner and frig with no problems. With no warning my RV would not accept the power it was producing. The generator would race, my RV circuitry would cycle on and off and the AC would bog down. Now it won't run anything, not even a shop light or a jig saw. Starts fine and the AC light comes on, but when I plug anything in to the AC receptacles, nothing. Taking it in next week for service, so I'll reserve final judgement until after I get it ba... more

After countless visits to various web sites to help me ease my mind to what generator will start and run my A/C on my mew travel trailer. I just know placed my order for a new Yamaha EF2400iS Inverter Generator. My brother In-Law purchased the same generator several months ago and allowed me to conduct a test run on my own travel trailer. One pull of the cord sent the, motor purring and once plugged into the trailer the A/C unit started without any hesitation. From the inside of the trailer I could not hear the generator engine running. Like love at first sight, I fell in love with the Yamaha EF2400iS.

After countless visits to various web sites to help me ease my mind to what generator will start and run my A/C on my mew travel trailer. I just know placed my order for a new Yamaha EF2400iS Inverter Generator. My brother In-Law purchased the same generator several months ago and allowed me to conduct a test run on my own travel trailer. One pull of the cord sent the, motor purring and once plugged into the trailer the A/C unit started without any hesitation. From the inside of the trailer I could not hear the generator engine running. Like love at first sight, I fell in love with the Ya... more

I have a 24ft. travel trailer and bought this Generator to use when camping where there are no hookups. The question with these Small inverter Generators is, Will they start the Roof A/C? I have a Coleman MACH plus made in 1992 and it would NOT start it. I Checked the Generator output with a Digital Multimeter and Clamp on Amp meter. When trying to start the A/C The generator went to high RPM and held 30 amps at 80 volts for about 10 seconds before tripping the overload on the generator. 30 X 80 equals the 2400 watt generator MAX rating. I checked the A/C starting surge on house power and it drew 37 amp starting surge. This told me I was close to getting it to work. I searched the internet for a solution and found one. A Hard Start Capacitor, It goes into the A/C on the roof of the RV. I found one in Tennessee for $20. I put it in and it cut the A/C starting surge to 27 AMPS. The Yamaha IS2400ef starts it just fine now! A/C running current after start is 12 AMPS.

I have a 24ft. travel trailer and bought this Generator to use when camping where there are no hookups. The question with these Small inverter Generators is, Will they start the Roof A/C? I have a Coleman MACH plus made in 1992 and it would NOT start it. I Checked the Generator output with a Digital Multimeter and Clamp on Amp meter. When trying to start the A/C The generator went to high RPM and held 30 amps at 80 volts for about 10 seconds before tripping the overload on the generator. 30 X 80 equals the 2400 watt generator MAX rating. I checked the A/C starting surge on house power and it ... more