Clutch Lubrication
Many motorcycles have a wet clutch, where the clutch plates are immersed in oil. Some oils make the friction plates in the clutch slippery so that the clutch does not engage properly when shifting gears, or the clutch slips when the engine exceeds a certain torque level. Some oils contain friction reducing chemicals. A properly specified motorcycle oil will still allow for the appropriate lubrication and cooling of a motorcycle clutch, whilst maintaining 100% of the drive to be transmitted by the clutch, even under arduous operating conditions. One element of the JASO-MA standard is a friction test designed to determine suitability for wet clutch usage. An oil that meets JASO-MA is considered appropriate for wet clutch operations. Oils marketed as motorcycle-specific will carry the JASO-MA label.
Read more about this topic: Motorcycle Oil
Famous quotes containing the word clutch:
“...I remembered the rose bush that had reached a thorny branch out through the ragged fence, and caught my dress, detaining me when I would have passed on. And again the symbolism of it all came over me. These memories and visions of the poor—they were the clutch of the thorns. Social workers have all felt it. It holds them to their work, because the thorns curve backward, and one cannot pull away.”
—Albion Fellows Bacon (1865–1933)