I'd be very grateful if someone can confirm the diameter of the 996R inlet valve please. Thank you, Andy
According to Ian Falloon's Desmoquattro Performance Handbook the 996R has a 40mm dia. inlet valve. Gudgeon pin diameter seems to have remained at 20mm on all models.
That's interesting because to my logic, the 996R is the bike that homologated the 996RS for racing so I would have expected them to be the same. According to my 996RS workshop manual the valve diameter is 39mm. The more I look at the differences the more complicated it gets. Thank you for the reply though. Andy
The same book quotes: 1997 - 2000, 996 SPS - inlet valve = 36mm, Exh Valve = 30mm 1999 - 2000, 996 Factory - inlet valve = 39mm, Exh Valve = 32mm 1999 - 2001, 996 RS - inlet valve = 39mm, Exh Valve = 32mm 1999 - 2001, 996 - inlet valve = 36mm, Exh Valve = 30mm 2001, 996 R - inlet valve = 40mm, Exh Valve = 33mm The 2001 996R is a 998cc Testastretta engine
