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All Bikes/Compare/Yamaha Fs1 vs Yamaha Jupiter Z1

Yamaha Fs1 vs Yamaha Jupiter Z1

Side-by-side comparison for used motorcycle buyers

Yamaha Fs1 vs Yamaha Jupiter Z1. Yamaha Fs1: ~1.5 hp @ 5,500 rpm (note: figures vary slightly by market year and restriction; unrestricted versions produced up to ~4–5 hp) hp, ~59 kg (wet/curb weight) weight, top speed 45–50 km/h (stock; restricted to legal limits in most markets), Motoryk rating 7.5/10. Yamaha Jupiter Z1: ~9.6 hp @ 8,000 rpm (estimated based on 113cc engine class) hp, ~99 kg (wet/curb weight) weight, top speed ~110 km/h (estimated; note: real-world top speed may vary by conditions and load), Motoryk rating 7.0/10.

Performance at a Glance

Green = winner per metric · Bars are relative to the higher value

Yamaha Fs1 Yamaha Jupiter Z1
Horsepower (hp)
1.5 hp
9.6 hp
Torque (Nm)
2 Nm
9 Nm
Top Speed (km/h)
45 km/h
110 km/h
Weight (kg) — lower is better
59 kg
99 kg
Type
Commuter
Commuter
Horsepower
~1.5 hp @ 5,500 rpm (note: figures vary slightly by market year and restriction; unrestricted versions produced up to ~4–5 hp)
~9.6 hp @ 8,000 rpm (estimated based on 113cc engine class)
Torque
~2.0 Nm @ 5,000 rpm (estimated; official figures rarely published for this class)
~9.0 Nm @ 5,500 rpm (estimated)
Top Speed
45–50 km/h (stock; restricted to legal limits in most markets)
~110 km/h (estimated; note: real-world top speed may vary by conditions and load)
Weight
~59 kg (wet/curb weight)
~99 kg (wet/curb weight)
Fuel
Approximately 1.5–2.0 L/100km (50–65 km/L typical real-world average)
~2.0 L/100km or ~50 km/L (typical real-world average)
Fairing
No
Yes

Individual Reviews

Yamaha Fs1
Yamaha Fs1
7.5/10

"A rewarding classic if you buy smart and budget realistically."

Pros
+Iconic two-stroke character
+Strong enthusiast parts support
+Lightweight and nimble handling
Cons
Most examples need work
Powerband demands attention
Electrics frequently corroded
Yamaha Jupiter Z1
Yamaha Jupiter Z1
7.0/10

"A sensible, low-drama commuter that rewards patient, budget-conscious buyers."

Pros
+Parts availability virtually everywhere
+Frugal fuel consumption
+Smooth, predictable gearbox
Cons
Soft suspension feels wallowy loaded
Carb needs regular cleaning
Uninspiring highway performance

Top 10 Accessories

Picks that work on either bike.

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Full-Face Motorcycle Helmet
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Mesh Riding Jacket
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Riding Boots
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Chain Lube & Cleaner Kit
Chain Lube
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Battery Trickle Charger
Battery Tender
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Handlebar Phone Mount
Phone Mount
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Waterproof Motorcycle Cover
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Waterproof Motorcycle Cover
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Roadside Tool Kit
Tool Kit
Roadside Tool Kit
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Helmet Action Camera
Action Camera
Helmet Action Camera
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