The RF model saw improved cooling through fairing redesigns in relation to the RE, as well as the addition of a double oil sump system, complete with anti-slosh plate mounted in the oil pan (compared to the single pump system in use on the RE model. This was done in order to combat oil starvation during cornering, as well as ensure that the cams and heads of the motor were receiving adequate lubrication. The RE models initially had trouble with camshaft wear. The addition of the second oil pump as well as a redesign of the camshaft clamps was done in order to improve the situation. The RF model also got a redesigned oil pan with taps for an oil cooler and the respective lines, in order to help with the high temperatures seen in the oiling system.