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Difference between revisions of "Honda 4RC146"
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The '''1965 [[Honda]] 4RC146''' is an improved version of the [[Honda 2RC146|2RC146]], and nearly identical to it – the only external difference are the shorter exhausts of the 4RC146. | The '''1965 [[Honda]] 4RC146''' is an improved version of the [[Honda 2RC146|2RC146]], and nearly identical to it – the only external difference are the shorter exhausts of the 4RC146. | ||
Power is now 30 bhp at 17,000 rpm. In actual practice, the engine hardly ever runs well, with continual Carburetion and ignition problems. | Power is now 30 bhp at 17,000 rpm. In actual practice, the engine hardly ever runs well, with continual [[Carburetion]] and [[ignition]] problems. | ||
Some interesting data: the piston, as usual for Honda with two compression and one oil scraper rings, weighs 34 g without the pin and rings. The pin, with a diameter of 11 mm weighs 11 g. An inlet valve has a head diameter of 14.5 mm and a stem diameter of 3.8 mm and is 74.4 mm long. Weight: 9 g. Two valve collets and the retainer weigh 1 resp. 3 g. Nobby Clarke said they used tweezers to put the Honda valve gear together. | Some interesting data: the piston, as usual for Honda with two compression and one oil scraper rings, weighs 34 g without the pin and rings. The pin, with a diameter of 11 mm weighs 11 g. An inlet valve has a head diameter of 14.5 mm and a stem diameter of 3.8 mm and is 74.4 mm long. Weight: 9 g. Two valve collets and the retainer weigh 1 resp. 3 g. Nobby Clarke said they used tweezers to put the Honda valve gear together. | ||
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[[Category:Honda motorcycles|4RC146]] | [[Category:Honda motorcycles|4RC146]] | ||
[[Category:Honda RC series|4RC146]] | [[Category:Honda RC series|4RC146]] | ||
[[Category:1960s motorcycles]] | |||