Fellow HBRR member, and general all around nice guy, TN Posted certain technical information introduced at the dealer meeting concerning yet another new oil pump for all M8 motors that was a rolling change made to all 2020 and any 2019 models manufactured after May 22 2019. They changed the distribution within the pump housing to increase scavenging from the crankcase 44 percent, and reducing scavenging from the cam chest area.
Maybe this will help fix the sumping issue.
Certainly hope so, but I think we all know the real root cause isn't the oil pump. Perhaps a higher volume (scavenge side) pump can overcome the real issue well enough to "fix" most bikes, but I'm guessing there will still be failures. Kind of like when you use a straw in a soft drink bottle and the level of the liquid drops, exposing the straw to air, no matter how hard you suck on that straw you aren't going to get the normal amount of fluid. If the oil in the crankcase isn't flowing by gravity to the pickup area for the pump fast enough, eventually even the best pump is going to suck air. A better pump may help the system recover faster, but I doubt it will cure the real problem. I guess we will see.
JMHO - Jerry
Author
Topic: New 117 Sumping (Read 7087 times)