Model Feature; General Feature - Yamaha GX1800A Service Manual

Model feature

General feature

The FZR (F3L) and FZS (F3K) have been developed based on the FZR (F2R) and FZS (F2C) and a
newly designed high output, 1.8L supercharged engine and a larger jet pump are adopted.
The new 6EV engine, developed based on the 6AN engine, is fitted with a high-performance super-
charger, large-sized air cooler, and high-efficiency oil cooler to achieve higher engine output.
The ride plate has a new design to improve the straight-running stability.
a. Power unit
• 4-stroke, L4, DOHC, 16 valve, 1812 cm³
engine with electronic fuel injection
• Supercharged
• Single throttle body
• 4-in-1 exhaust system
• Wet-sump lubrication
b. Jet pump
• Stainless steel, 3-blade, ø160 mm, 17.0°
pitched impeller
• Impeller turning direction: counterclock-
wise (when viewed from the rear)
• Aluminum jet thrust nozzle
• Q.S.T.S.
d
c
a
c. Electrical
• Electronic control throttle valve system
• In-tank fuel pump module
• Dual analog meter
• L-MODE
• OTS
• Self-diagnosis system with YDIS (New ver-
sion 2.12)
d. Deck and hull
• Rounded keel hull
• NanoXcel hull, NanoXcel deck
• Telescopic steering system
2
Model feature
b