1985 Yamaha FZ 750 Specifications

Name: 1985 Yamaha FZ 750
Brand: Yamaha

Sport • Specs last verified 13 July 2026

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1985 Yamaha FZ 750 Overview

For 1985, Yamaha offers the FZ 750 as a sport motorcycle with 749 cc on tap. The 1985 Yamaha FZ 750 is built around an In-line four engine running DOHC valve actuation, a compression ratio of 11.2:1. Internally, bore and stroke are 68 x 51.6 mm. In everyday use, the 1985 FZ 750 tips the scales at 241 kg and carries a 22-litre fuel tank. That's roughly 38.7 kg heavier than the average sport motorcycle in our database. Every technical detail, from suspension travel to tyre sizes, is covered in the full 1985 Yamaha FZ 750 spec sheet below.

1985 FZ 750 - Pros & Cons

Strengths

Large fuel range: With a 22-litre tank, this isn't a bike you'll be stopping for fuel every hour - a real asset on longer trips.

Considerations

Chain final drive upkeep: A chain drivetrain is the most common setup in its class, but it's also the one that demands the most regular hands-on maintenance.

Wear Points & Servicing Notes

Valve clearance checks

Valve clearances on DOHC-equipped engines like the FZ 750's drift slowly with mileage rather than failing suddenly - sticking to the service interval keeps it a non-issue.

Brake disc and pad wear

Dual disc up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.

Final drive maintenance

Chain final drive on the FZ 750 means routine lubing and tension checks are part of ownership - skip them and sprocket wear accelerates noticeably.

Handling the weight at a standstill

The FZ 750's 241 kg kerb weight is worth factoring into how you handle it at a standstill - parking-lot manoeuvres need a bit more deliberate technique than on a lighter machine.

FZ 750 - Buying & Maintenance Guide

What to check before buying

A pre-purchase check on the 1985 Yamaha FZ 750 should cover the same ground every time: service history, chain and sprocket condition, and any oil seepage around the casings. Start it from cold if you can - a well-kept FZ 750 settles to a smooth idle within seconds.

Oil and filter changes

Oil changes are the cheapest insurance you can buy for a FZ 750's engine - keep to the manufacturer's interval rather than stretching it. Use the viscosity grade the manual specifies, not whatever's on sale.

Valve clearance service

There's no reliable seat-of-the-pants way to tell if a FZ 750's valve clearances are in spec - a light top-end tick is the only real warning sign, and by then some wear has already happened. Service records are the only proof.

1985 Yamaha FZ 750 - Frequently Asked Questions

What engine does the 1985 Yamaha FZ 750 have?

The 1985 Yamaha FZ 750 uses an In-line four engine with 749 cc of displacement.

How much does the 1985 Yamaha FZ 750 weigh?

The 1985 Yamaha FZ 750 weighs 241 kg. This is the manufacturer's wet figure.

What is the fuel tank capacity of the 1985 Yamaha FZ 750?

The 1985 Yamaha FZ 750 has a 22-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 366-440 km between stops.

What brakes does the 1985 Yamaha FZ 750 have?

The 1985 Yamaha FZ 750 uses Dual disc at the front and Single disc at the rear.

What tyre sizes does the 1985 Yamaha FZ 750 use?

The 1985 Yamaha FZ 750 runs 120/80-16 front and 130/80-18 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What is the compression ratio of the 1985 Yamaha FZ 750?

The 1985 Yamaha FZ 750 runs a compression ratio of 11.2:1. Always use the minimum octane rating specified in the owner's manual.

Yamaha FZ 750 Spec Evolution

The Yamaha FZ 750 was produced across 7 model years (1985-1992). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	1985	1986	1988	1989	1990	1991	1992
Wet Weight	241.0 kg / 531.3 lbs	241.0 kg / 531.3 lbs	232.0 kg / 511.5 lbs	232.0 kg / 511.5 lbs	232.0 kg / 511.5 lbs	232.0 kg / 511.5 lbs	232.0 kg / 511.5 lbs
Fuel Capacity	22.00 litres / 5.81 gallons	22.00 litres / 5.81 gallons	21.00 litres / 5.55 gallons	21.00 litres / 5.55 gallons	21.00 litres / 5.55 gallons	21.00 litres / 5.55 gallons	21.00 litres / 5.55 gallons
Tyres - Front	120/80-16	100/90-18	120/70-17	120/70-17	120/70-17	120/70-17	120/70-17
Tyres - Rear	130/80-18	130/80-18	140/70-18	140/70-18	140/70-18	140/70-18	140/70-18

Key Specifications

Engine

In-line four

Power

Not published by manufacturer

Torque

Not published by manufacturer

Top Speed

Not published by manufacturer

Weight

241.0 kg / 531.3 lbs

Fuel Capacity

22.00 litres / 5.81 gallons

Full 1985 Yamaha FZ 750 Specifications

Fuel Capacity 22.00 litres / 5.81 gallons

Wet Weight 241.0 kg / 531.3 lbs

Bore x Stroke (in,) 2.7 x 2.0 inches

Bore x Stroke (mm) 68.0 x 51.6 mm

Displacement (cc) 749.00 cc

Displacement (ci) 45.70 cubic inches

Engine Type In-line four

Fuel Control DOHC

Stroke 4

Compression Ratio 11.2:1

Valve System 5

Final Drive Chain

Gearbox 6-speed

Brakes - Front Dual disc

Brakes - Rear Single disc

Tyres - Front 120/80-16

Tyres - Rear 130/80-18

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.

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