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All Bikes/Yamaha/Rd 350
Yamaha Rd 350
Classic

Yamaha Rd 350

The Yamaha Rd 350 has a top speed of 161 km/h, produces 39 hp and weighs 166 kg. Motoryk rates it 8/10.

The Yamaha RD350 was introduced in 1973 as the successor to the DS7/R3 series, featuring a revolutionary reed-valve induction two-stroke parallel twin engine that delivered exceptional power for its displacement. It quickly earned a reputation as one of the finest handling and most exciting lightweight motorcycles of the 1970s, dominating club racing and becoming a cult classic among enthusiasts. Production continued through 1975 for most markets, though the RD350B variant followed in 1975-1976, and the model left a lasting legacy that influenced Yamaha's two-stroke lineup for decades.

39 hp

Power

33 Nm

Torque

166 kg

Weight

161 km/h

Top Speed

5.0–6.5 L/100km (approximately 15–20 km/L, estimate based on typical two-stroke usage)

Fuel

Naked

Body

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Video Review

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What Buyers Should Know

⚙️

Powervalve-Free Two-Stroke

The RD350 uses a simple reed valve induction system without powervalves, making it mechanically straightforward to maintain. However, the two-stroke engine requires regular top-end rebuilds every 5,000–8,000 miles to stay healthy.

🔍

Watch the Expansion Chambers

The tuned exhaust expansion chambers are critical to performance and are expensive to replace if rusted or dented. Always inspect them closely — dents or holes cause noticeable power loss and are a strong bargaining point.

📈

Strong Collector Resale Value

Clean, original RD350s have steadily appreciated in value, with well-maintained examples selling for $4,000–$8,000+. Its legendary status as a 'pocket rocketship' of the 1970s keeps demand high among enthusiasts.

Generations & Specs by Year

1972–1973 Gen 1 (DS7/R3)

Introduced as RD350, reed valve induction, torque induction system, twin-cylinder two-stroke, 347cc engine.

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8.7/10

"The two-stroke that rewrote what small bikes could do."

Nothing in 1972 prepared you for that reed-valve induction hit — below 6,000 rpm it's polite enough, then the torque induction system kicks and suddenly you're holding on rather than steering. I've owned two of these and the power delivery still surprises me every time. The chassis is light and flickable but the front drum brake is genuinely terrifying once you're carrying serious speed, and those early Autolube two-stroke oil pumps need constant attention or you'll be rebuilding pistons. Carburetor synchronization is a weekly religion, not a suggestion.

Pros

+Savage midrange for 347cc
+Featherlight at 154 kg
+Reed valves transform throttle response
+Parts still surprisingly available

Cons

Front drum brake dangerously inadequate
Constant carb sync required
Autolube pump needs obsessive monitoring
Pre-powerband torque feels deceptive
Best for: Experienced riders craving raw intensity Skip if: You hate frequent mechanical fettling
1974–1975 Gen 2 (RD350A/B)

Minor refinements, updated graphics, improved carburetion, slightly revised cycle parts and instrumentation.

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8.7/10

"The sharpest two-stroke twin money could buy."

The A/B updates are subtle enough that you'd miss them in a side-by-side, but the recalibrated Mikuni carbs genuinely cleaned up the flat spot around 4,500 rpm that plagued the first-gen — hit 6,000 and it still claws your wrists like it's offended you waited this long. Handling is taut and communicative on smooth tarmac, but the revised front forks still transmit every tar strip straight into your palms on a long run. Two-stroke maintenance is a real commitment: pre-mix discipline, power valve checks, and fouled plugs are just Tuesday. What keeps me coming back is that nothing built at this price point in 1974 offered this kind of raw, mechanical honesty — it rewards skill and punishes laziness, which is exactly what motorcycling should be.

Pros

+Addictive powerband above 6,000 rpm
+Improved carburetion over Gen 1
+Precise, flickable chassis at pace
+Lightweight feel defies 166 kg spec

Cons

High-maintenance two-stroke demands constant attention
Forks still underdamped on rough roads
Parts supply increasingly scarce worldwide
Best for: Skilled riders craving mechanical engagement Skip if: You hate wrenching between rides
1976–1976 Gen 3 (RD350C)

Revised exhaust system, updated styling, improved front forks, minor engine tuning adjustments for emissions compliance.

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7.8/10

"Still a screamer, but emissions tuning blunted the edge."

The RD350C hits that 6,500rpm powerband like someone flipped a switch, and it's still one of the most viscerally satisfying things you can do on two wheels for the money. Yamaha's revised exhaust sounds meaner at idle but the emissions-mandated detuning is real — back-to-back with a '74 RD350, you feel maybe 3-4hp missing in the top end, which stings given how close to the limit this engine already lived. The updated front forks genuinely improved confidence in fast corners; the original setup had a vagueness that could bite you mid-sweep, and this generation sorted that out. Oil injection reliability remains the one thing that keeps me up at night — neglect it and you're rebuilding a seized top end on the side of a road that doesn't deserve your company.

Pros

+Explosive two-stroke powerband still thrills
+Improved fork feel, more corner confidence
+Lightweight, flickable chassis forgives mistakes
+Parts still findable, community is strong

Cons

Emissions tuning dulled peak power
Oil injection demands obsessive maintenance
Needs full rebuild every 10k km
Best for: Experienced riders craving raw character Skip if: You skip routine maintenance intervals
1983–1986 Gen 4 (RD350F/YPVS)

Yamaha Power Valve System introduced, mono-shock rear suspension, liquid cooling, significantly increased power output.

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9.1/10

"The last great street-legal two-stroke screamer."

The YPVS changes everything — below 6,500 rpm it's a tractable commuter, then the power valve opens and the thing lunges forward like something bit it. I've owned three RDs and this generation is the definitive one: the monoshock rear transformed the chassis from a wallowing compromise into something genuinely confidence-inspiring through fast sweepers. Liquid cooling means you can actually sit in traffic without seizing a piston, which the air-cooled variants punished you for routinely. The honest downside is that YPVS servo motor — when it fails, and it will, you're down to 30-odd horsepower and a wallet-emptying diagnosis.

Pros

+YPVS powerband hit is savage
+Monoshock chassis genuinely handles
+Liquid cooling prevents heat seizures
+59hp in 154kg feels illegal

Cons

YPVS servo fails expensively
Power delivery punishes inattentive throttle hands
Parts increasingly rare and pricey
Best for: Track-day obsessed vintage enthusiasts Skip if: You hate two-stroke maintenance
1986–1992 Gen 5 (RD350F2)

Updated fairing and bodywork, refined YPVS system, improved braking, sold primarily in Indian and Brazilian markets.

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8.2/10

"Two-stroke thunder that still embarrasses modern middleweights."

I ran an RD350F2 for three years through Pune traffic and weekend hill runs, and nothing prepares you for that YPVS powerband opening up at 6,500 rpm — it's like the bike swallows a grenade. The refined fairing actually keeps wind blast manageable past 130 km/h, a genuine improvement over earlier gens, and the updated front disc setup gave me far more confidence braking hard into tight corners. That said, the 2-stroke tax is real: oil tank anxiety, fouled plugs if you lug it below its happy zone, and fuel economy that would make a truck driver wince. Parts availability in the Indian market kept it liveable, but this bike demands mechanical sympathy and a rider willing to meet it on its own terms.

Pros

+YPVS powerband is genuinely addictive
+Refined fairing improves highway composure
+Lightweight chassis rewards aggressive cornering
+Updated braking inspires real confidence

Cons

Thirsty, punishing below powerband
2-stroke maintenance never truly ends
Piston and ring longevity is poor
Best for: Spirited riders embracing mechanical involvement Skip if: You hate frequent workshop visits

Used Buyer Review

8.0/10
Best for
Experienced riders wanting raw two-stroke involvement

"A thrilling classic, but only buy one already sorted."

$2,500-$6,500 used

The RD350 is genuinely one of the most rewarding two-strokes you can throw a leg over, but buying one used is a minefield if you don't know what you're looking at. These engines breathe through reeds and expansion chambers, and the previous owner either understood that or absolutely didn't — there's rarely a middle ground. Check the power valves, smell the exhaust for rich running, and walk away from anything that's been sitting more than a year without a carb rebuild. The good news is parts availability has improved dramatically through the vintage community. When it's right, the 350 pulls hard from 6,000rpm and screams to nine with a mechanical intensity modern bikes simply can't replicate. Handling is surprisingly capable for a 1970s machine — light, flickable, and communicative. Just budget realistically: a proper restoration runs $1,500-2,500 in labour and parts on top of purchase price. Find one with documented work rather than optimistic promises.

Pros
Cons
Skip if: You need reliable daily transport without mechanical fuss

Top 10 Accessories

Curated picks for the Yamaha Rd 350 — owned, ridden, recommended.

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Common Problems

🔥 2 CRITICAL
🔥Reed valves worn or cracked SERIOUS

Listen for rattling, check throttle response and power loss

Fix cost: $40-$120
🔥Power valve (YPVS) seized or stuck SERIOUS

Rev to 6500rpm, feel for powerband engagement

Fix cost: $80-$200
⚠️Crank seals leaking oil MODERATE

Uneven idle, oily residue near engine cases

Fix cost: $150-$350
⚠️Corroded or blocked carburetors MODERATE

Check for rough idle, hesitation, and fuel leaks

Fix cost: $50-$150

Pre-Purchase Checklist

Cold start test, should fire easily
Check expansion chambers for dents or rust
Verify both cylinders fire evenly
Inspect frame for cracks near steering head

Capable bike, requires regular two-stroke maintenance

Full Specifications

Engine Power 39 hp @ 7,500 rpm
Torque 33 Nm @ 7,000 rpm (estimated)
Top Speed 161 km/h
Weight 166 kg (wet/curb weight)
Fuel Consumption 5.0–6.5 L/100km (approximately 15–20 km/L, estimate based on typical two-stroke usage)
Type Classic
Fairing No Fairing (Naked)

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Compare Yamaha Rd 350 Side-by-Side

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Community Reviews

Discussion

Frequently Asked Questions

What are common problems with the Yamaha Rd 350? +

Reed valves worn or cracked: Listen for rattling, check throttle response and power loss (serious) | Power valve (YPVS) seized or stuck: Rev to 6500rpm, feel for powerband engagement (serious) | Crank seals leaking oil: Uneven idle, oily residue near engine cases (moderate)

Is the Yamaha Rd 350 a good motorcycle? +

A thrilling classic, but only buy one already sorted. Rating: 8.0/10. Best for: Experienced riders wanting raw two-stroke involvement. Avoid if: You need reliable daily transport without mechanical fuss.

What is the horsepower of the Yamaha Rd 350? +

The Yamaha Rd 350 produces 39 hp @ 7,500 rpm, with 33 Nm @ 7,000 rpm (estimated) of torque. Top speed: 161 km/h.

Is the Yamaha Rd 350 good for beginners? +

Yes — the Yamaha Rd 350 is a reasonable choice for new riders (39 hp is manageable), weighing 166 kg. Experienced riders wanting raw two-stroke involvement

Is the Yamaha Rd 350 reliable? +

Owners report 2 critical issues to watch for on the Yamaha Rd 350, notably: Reed valves worn or cracked (Listen for rattling, check throttle response and power loss). Buy with a pre-purchase inspection.

Is the Yamaha Rd 350 good for daily use? +

Experienced riders wanting raw two-stroke involvement Fuel: 5.0–6.5 L/100km (approximately 15–20 km/L, estimate based on typical two-stroke usage).

How fast is the Yamaha Rd 350? +

The Yamaha Rd 350 reaches a top speed of 161 km/h, producing 39 hp at 166 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.

What gear should I buy for a Yamaha Rd 350? +

Motoryk has curated a Top 10 gear list specifically for the Yamaha Rd 350, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/yamaha/rd-350/top10. Each pick is matched to this bike's spec.