This 6300 is a beast.its super quiet great on fuel and enough power to run my entire race trailer with 2 ac’s.

I bought the Yamaha 6300. It was well packaged and delivered without issue or delay. The price was very good and the gennerator is a beast..

I read about how to purchase from national supply company for a generator and how easy it was boy were they right.This place did not hesitate to satisfy my needs. I will definitely do business with them again.

Great piece of equipment. I wired an inlet directly to my panel and and connected the generator via a 25 foot cord. easily keeps my refrigerator, freezer nd other critical appliances running during our evermore frequent So Cal Edison power safety outages.
Clean quiet power when we need it.

Thank you National Supply it was a pleasure buying from you!

I decided that I needed a generator and did a lot of research. I ended up with the Yamaha EF6300 and so far am very pleased. For me, it was the perfect blend of quality, price and features. Purchasing it from National Supply was also a snap, the best part was having the heavy 200 lb. pallet wheeled right into my garage. I really didn’t trust the freight store brand, I didn’t want to worry about it down the road and be dealing with longevity issues possibly at a time when I needed it most. Yamaha has been making products for ever.
My only complaint is that I wished that two of the front wheels swiveled, which would make it easier to turn, but I plan on placing it in a cart to alleviate that.
Also getting the battery out to fill it with electrolyte was a bit of a challenge (I had to loosen the black plastic surround to get an additional 1/4” movement to allow it to come out, thankfully I had the right size Torx bit).

the unit came on a palet, quick delivery within a week. Added oil, gas 1 crank and it ran beautifully

I have purchased three Yamaha generators from National Supply and the service has been excellent each time. I just purchased a Yamaha EF6300iSDE inverter generator and it was quickly shipped and received without damage, Yamaha packages the generators very well and National Supply makes sure their final shipping packaging is well done also.

The Yamaha EF6300iSDE is a well thought out design, Yamaha inverters are the best second to nobodies, they put out such clean power they can run medical equipment without issues. This EF6300iSDE started right up after installing the battery, oil and adding some fuel.

While there are plenty of China made clones sold at cheaper prices but they do not have the reliability of the Yamaha brand. I will spend the extra money and know I have the very best quality and longevity that you can have in a Yamaha. I will also purchase from National Supply because they have the best customer service and fast shipping.

Yamaha and National Supply are my choice when it comes to quality products and service.

Good communication from staff and was packed very well, no damage

Upgrading from a Champion 7k. It worked and broke, got it fixed but it runs 100% regardless of load and extremely loud.
The Yamaha by comparison is so much more premium, efficient and wow..so quiet!
Communication was great as it was in back order. Was packed very well, no damage and fired right up. Hoping I get many many years of trouble free power as I'm in Southern Florida.

Everything went as expected. Order was straight forward. Generator arrived when it was supposed to and arrived in perfect condition. I’ve only used it a few minutes to make sure it worked. If anything changes I’ll update my review.