When it comes to keeping your Honda Rincon 650 running smoothly, the fuel pump is one of those components you don’t want to overlook. This ATV’s 649cc liquid-cooled engine demands a reliable fuel delivery system, especially if you’re tackling rough trails or hauling heavy loads. The OEM fuel pump for the Rincon 650, part number **16700-HL5-A01**, is engineered to handle pressures between **3-5 PSI** while maintaining a flow rate of roughly **6 gallons per hour (GPH)**. But let’s be real—OEM parts aren’t always easy on the wallet, with prices often hovering around **$150-$200**. That’s where aftermarket options like the Fuel Pump from Kemso Racing come into play, offering comparable performance at a friendlier **$80-$120** range.
Now, you might ask, *“Why does the Rincon 650 need such specific fuel pump specs?”* The answer lies in its electronic fuel injection (EFI) system, which relies on consistent pressure to optimize combustion. A weak or failing pump can lead to symptoms like sputtering at high RPMs, hard starts, or even engine stalling—issues that’ll leave you stranded mid-ride. Take it from a 2022 case study by *ATV Rider Magazine*, where a Rincon owner reported a **30% improvement in throttle response** after upgrading to a high-flow aftermarket pump. These pumps often feature reinforced diaphragms and corrosion-resistant housings, extending their lifespan to **5-7 years** under normal use, compared to the OEM’s average **3-5 years**.
If you’re considering a replacement, compatibility is key. The Rincon 650’s fuel pump assembly includes a **sending unit, filter screen**, and **pressure regulator**, all housed in a compact **3.5-inch diameter module**. Aftermarket brands like Kemso Racing design their pumps to match these exact dimensions, ensuring a plug-and-play install. One user on the *Honda ATV Forum* shared that swapping their worn-out OEM pump with a Kemso unit took **under 45 minutes**, requiring only basic tools like a socket set and fuel line clamp. Just remember: skipping the filter screen replacement can clog your new pump in as little as **500 miles**, so always pair it with a fresh filter (around **$15**).
Cost-wise, investing in a quality fuel pump pays off. Let’s break it down: A **$100 aftermarket pump** with a **2-year warranty** versus a **$180 OEM pump** with a similar coverage period. Over a decade, you’d save **$240** by going aftermarket—enough to cover a set of new tires! Plus, brands like Kemso Racing test their pumps under extreme conditions, like the **2023 Baja 1000**, where their units survived **1,000+ miles of desert racing** without faltering. That’s the kind of durability you want when mudding or towing.
Still unsure? Check your pump’s health with a simple pressure test. A healthy Rincon 650 should maintain **steady 4-5 PSI at idle**. If yours dips below **3 PSI**, it’s time for a swap. And if you’re eyeing an upgrade, don’t sleep on modern options with **self-priming designs** or **built-in surge protection**—features that prevent vapor lock during steep climbs. At the end of the day, whether you stick with OEM or go aftermarket, prioritizing quality ensures your Rincon stays trail-ready for years. After all, nobody wants to call it quits early because of a $100 part!