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Hey guys,
Purchased race cams for a Yamaha R1 directly from Yamahas race department. The install details are pretty sparse. They only mention:
Valve timing (event angle): INT 105 deg. EXT: 109 deg.
Does that most likely refer to full lift @105 degrees ATDC for the inlet valve and full lift @109 degrees BTDC for the exhaust?
Appreciate any help
That is how I would take it.
