Model RY906500SThe Ryobi RY906500S is a 6,500-watt gasoline-powered portable generator equipped with a CO shutdown sensor for enhanced safety. It features a 6-gallon fuel tank providing up to 10 hours of runtime at 50% load, and includes multiple outlets for versatile power needs.
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Here's the quick tradeoff view — what this model does well, and where it may not fit.
The Ryobi RY906500S is a gasoline generator built around a 6500-watt running output and an 8125-watt starting surge. That combination makes it suited to situations where steady power matters but you also want extra headroom for startup demands.
Because it runs on gasoline, the RY906500S pairs its wattage with a familiar fuel choice for shoppers who want a straightforward refueling routine while keeping a strong power ceiling available when loads ramp up.
With 6500 running watts and 8125 starting watts on gasoline, the RY906500S is designed to handle continuous electrical demand while also absorbing the brief spike that happens when equipment first kicks on. In real use, that starting capacity helps reduce the need to micromanage what you power up first, since the generator has a defined surge buffer beyond its running output.
Noise is rated at 72 dBA, which sets expectations for an audible presence while it is operating. For run time, the generator is listed at 10 hours at 50 percent load, giving a clear reference point for longer stretches of use when you are not pushing it to full output. Total harmonic distortion is listed at 20 percent, which frames the quality of the electrical output in a measurable way for anyone planning what kinds of devices they want to run.
At 195 lbs, the RY906500S is a substantial unit that emphasizes capacity over easy lifting. Its physical footprint is also clearly defined, with dimensions of 39 x 29 x 24.5 inches, which helps when planning storage space or deciding where it can sit during operation.
Those measurements make it easier to judge fit in a garage, shed, or dedicated outdoor spot, and they also set expectations for how much room you will want around it while it is running.
Starting is handled through a recoil system, keeping operation straightforward and fully manual. The generator is EPA compliant, and it includes a spark arrestor, which adds an extra layer of protection tied directly to how exhaust sparks are managed.
For power delivery and safety-minded convenience, the RY906500S includes covered outlets and GFCI outlets, helping protect connections and adding ground-fault protection at the receptacles. It also uses AVR, or automatic voltage regulation, to manage output stability as loads change. Ryobi backs the generator with a 3-year warranty, providing a defined coverage period for ownership.
Est. running: 1,800W
Peak surge (single motor): 2,000W
Avoid starting multiple motor loads at the same time.
Est. running: 5,000W
Peak surge (single motor): 2,000W
Avoid starting multiple motor loads at the same time.
Est. running: 3,800W
Peak surge (single motor): 6,000W
Avoid starting multiple motor loads at the same time.
These are estimates using typical wattage assumptions. Real appliances vary. Startup surges can be 2–6× the running wattage for motor-driven loads. 240V loads require a 120/240V generator and proper connection. Use a transfer switch or interlock kit; never backfeed a panel.
Ryobi is a renowned brand known for its affordable and innovative power tools and outdoor equipment, including generators for residential and light commercial use.
| Fuel | Running | Starting | Runtime @50% | Runtime @25% |
|---|---|---|---|---|
| Gasoline | 6500W | 8125W | 10h | Not available |
| Running Watts | 6,500 watts |
|---|---|
| Starting Watts | 8,125 watts |
| Starting Watts (Gasoline) | 8,125 W |
| Running Watts (Gasoline) | 6,500 W |
| Engine | 420 cc OHV 4-stroke |
|---|---|
| Engine Type | OHV 4-stroke |
| Engine Displacement | 420 cc |
| Spark Arrestor | Yes |
| Emissions Compliance | EPA |
| Voltage (AC) | 120/240 |
|---|---|
| Phase | Single |
| Running Amps | 54.2/27.1 A |
| Peak Amps | 67.7/33.9 A |
| AC Frequency | 60 hz |
| GFCI Outlets | Yes |
| Neutral | Bonded to frame |
| DC Outlets | No |
| AC Outlets | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) |
| Total Harmonic Distortion (THD) | 20 % |
| Dimensions | 39 x 29 x 24.5 inches |
|---|---|
| Weight | 195 lbs |
| Automatic Low Oil Shutdown | Yes |
|---|---|
| Emissions Compliance | EPA |
| Automatic Voltage Regulation | Yes |
| Automatic Voltage Regulator | Yes |
| Carbon Monoxide Sensor | Yes |
| Commercial Warranty | 3 years |
| Covered Outlets | Yes |
| Electric Start | No |
| Fuel Gauge | No |
| Fuel Tank Capacity | 6 gallons |
| Included Accessories | Oil, tool kit, and wheel kit |
| Indicators | No |
| Inverter | No |
| Noise Level | 72 dBA |
| Overload Protection | Low oil and overload protection, CO monitoring |
| Parallel Capable | No |
| Recoil Start | Yes |
| Remote Start | No |
| RV Ready | No |
| Starter Type | Recoil |
| Starting System | Recoil |
| UPC | 46,396,023,483 |
| Warranty | 3 years |
| Wheels | Yes |
| Fuel Type | Gasoline |
|---|
| Runtime @ 50% | 10 hours |
|---|---|
| Runtime @ 50% Load (Gasoline) | 10 hours |
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