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The Black Widow also came with a chrome straight pipe exhaust and motocross tires. It had a chrome front and black painted rear fender. As its name suggests it was offered in black only. It was marketed as an off-road racing machine and claimed to be the best in its class. Scrambler – For 1971 the Scrambler was slightly modified. It came with ...
The layout of a 4-2-1 system is as follows: four pipes (primary) come off the cylinder head, and merge into two pipes (secondary), which in turn finally link up to form one collector pipe. [2] Compared with a 4-1 exhaust system, a 4-2-1 often produces more power at mid-range engine speeds (RPM), while a 4-1 exhaust produces more power at high RPM.
In later years Honda joined the end of the exhaust pipes with an external factory installed muffler to control exhaust noise. At first it was slipped on and clamped. Later models came with only one of the twin side pipes welded onto the slip-on muffler. The last version came with both pipes welded to the slip-on muffler. [citation needed]
The 6 volt coil 'ET' (energy transfer) ignition system was designed to include easy conversion to add lights for road use but the exhaust pipes needed to be fitted with mufflers to become road legal. [3] The 'Mandarin Red' Spitfire Hornet ('64-'65) was further upgraded in 1965 with a more positive gear selector and a quick change gearbox sprocket.
The Scrambler was designed as a Bonneville with off-road styling and limited off-road capability. The TR6C Trophy Special was the major influence on the new Scrambler, and the new bike shared the same key features – most obviously including the high level stacked twin exhausts and crossover exhaust headers, though Triumph had to swap sides (from left to right) with the stacked pipes because ...
The end of the final length of the exhaust pipe where it vents to open air, generally the only visible part of the exhaust system part on a vehicle, often ends with a straight or angled cut but may include a decorative tip. The tip is sometimes chromed. It frequently has a larger pipe than the rest of the exhaust system.