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2. Straight-twin engine - Wikipedia

   en.wikipedia.org/wiki/Straight-twin_engine

   270 degrees. In an engine with a 270 degree crankshaft, one piston follows three quarters of a rotation behind the other. This results in an uneven firing interval where the second cylinder fires 270 degrees after the first, followed by a gap of 450 degrees until the first cylinder fires again.

3. Crossplane - Wikipedia

   en.wikipedia.org/wiki/Crossplane

   The actual intervals in each bank are 180-90-180-270 crankshaft degrees, in various orders depending on the engine, and not usually in the same order in each bank. The exact combinations depends on the crankshaft "handedness", the direction of rotation and which of the 360° pairs is ignited first in the order.

4. Big-bang firing order - Wikipedia

   en.wikipedia.org/wiki/Big-bang_firing_order

   The Yamaha TRX850 pioneered the use of a 270° crank. This configuration allowed a firing pattern more regular than a 180° crank, and less regular than a 360° crank. A 270° crank gives the best possible secondary engine balance for a parallel twin, and its exhaust note and power delivery resembles those of a 90° V-twin.

5. Ducati L-twin engine - Wikipedia

   en.wikipedia.org/wiki/Ducati_L-twin_engine

   Ducati Multistrada 90-Degree V-twin engine. The L-twin is a naturally aspirated two-cylinder petrol engine by Ducati. It uses a 90-degree layout and 270-degree firing order and is mounted with one cylinder nearly horizontal.

6. V-twin engine - Wikipedia

   en.wikipedia.org/wiki/V-twin_engine

   [10] [11] However, this arrangement results in an uneven firing order, with the second cylinder firing 270 degrees after the first cylinder, then a 450 degrees interval until the first cylinder fires again. 90 degree engines are sometimes called L-twin (like the "L" in TL1000R or TL1000S) rather than V-twin.

7. Yamaha XT1200Z Super Ténéré - Wikipedia

   en.wikipedia.org/wiki/Yamaha_XT1200Z_Super_Ténéré

   It features a liquid-cooled four-stroke, fuel-injected 1,199 cc (73.2 cu in) parallel-twin engine with a 270° crank, which powers the motorcycle through a six-speed gearbox and shaft drive. The XT1200Z also features multi-mode traction control system and electronic throttle control (YCC-T) with programs to support off-road use, switchable ...

8. Engine balance - Wikipedia

   en.wikipedia.org/wiki/Engine_balance

   270° crankshaft: This configuration minimises secondary imbalances; however, a primary-rotating-plane imbalance is present and the firing order is uneven. The exhaust note and power delivery resemble those of a 90° V-twin engine. Straight-three engines most commonly use a 120° crankshaft design and have the following characteristics:

9. Royal Enfield Interceptor 650 - Wikipedia

   en.wikipedia.org/wiki/Royal_Enfield_Interceptor_650

   Fuelling is via Bosch injection and engine management. The low 9.5:1 compression ratio will help the engine tolerate lower-octane fuel. The crankshaft has a 270° Crank, with a gear-driven balance shaft ahead of the crank. The slipper clutch drives a six-speed gearbox and chain final drive.