| Quick Specs: Yamaha FJR 1300 AE (RP28AE) | |
|---|---|
| Production Years | 2016 – 2020 |
| Engine Oil | SAE 10W-40, JASO MA/MA2 (4.0 L) |
| Tire Dimensions | F: 120/70 ZR 17 / R: 180/55 ZR 17 |
| Tire Pressure | F: 2.5 bar / R: 2.9 bar |
| Spark Plug | NGK CPR8EA-9 |
| Battery Type | YTZ14S |
A pivotal engineering milestone for the FJR lineage, the RP28 series marked the definitive transition to a six-speed transmission. While the FJR had dominated the sport-touring segment since 2001, the 2016 update (RP28) finally addressed the long-standing request for an overdrive gear, utilizing a helical gear design that reduced noise and weight compared to the previous five-speed unit.
Engineering Heritage: The RP28 Evolution
The RP28AE represents the pinnacle of Yamaha’s Euro 4 compliant touring technology. Beyond the transmission, this iteration introduced the Assist & Slipper (A&S) clutch, reducing lever effort by approximately 20% and significantly enhancing chassis stability during aggressive downshifts. The “AE” designation specifically denotes the inclusion of electronically adjustable suspension and upside-down (USD) front forks, distinguishing it from the standard ‘A’ model.
Powertrain and Euro 4 Integration
The 1,298cc inline-four engine remains a masterclass in linear power delivery. To meet stringent Euro 4 emissions, Yamaha optimized the ECU mapping and exhaust catalysis without sacrificing the 146 HP output. The RP28 also features full LED lighting with a cornering light system (controlled by an Inertial Measurement Unit), a first for the FJR series, enhancing safety during night-time technical touring.
Maintenance Guide & Technical Requirements
Professional maintenance is critical for the longevity of the shaft-drive system and the electronic suspension actuators. Below are the core technical requirements for the RP28AE:
- Lubrication: Use only high-quality synthetic 10W-40 oil. The total capacity with filter change is 4.0 liters. Ensure JASO MA2 compliance to protect the A&S clutch plates.
- Ignition: The NGK CPR8EA-9 plugs should be inspected every 10,000 km. Proper gapping is essential for the smooth idle characteristics this engine is known for.
- Chassis: The electronic suspension requires periodic inspection for seal integrity. Unlike traditional forks, the USD units on the AE model have specific oil volume requirements for the rebound and compression damping circuits.
- Final Drive: The shaft drive oil should be replaced according to the service manual, typically every 20,000 km or 2 years, using SAE 80 API GL-4 or GL-5 gear oil.
MotoSpecsLab Verdict
The Yamaha FJR 1300 AE (RP28AE) is a rare example of a motorcycle that successfully bridged the gap between analog mechanical reliability and modern electronic sophistication. For the long-distance rider, it remains one of the most mechanically robust platforms ever engineered, provided the strict fluid and electrical maintenance intervals are observed.