Honda · Canada · Mod
Honda CB750: Engine
Affects Honda CB750 · 1979 — about 252 vehicles.
The hazard
On certain CB750KZ, extreme engine oil pressure variation, such as caused when the engine is repeatedly revved-up immediately after starting in cold weather, could cause the countershaft oil seal to split allowing a leakage of oil. If the rider is unaware of the leak and operates the vehicle, oil may come in contact with the rear tire resulting in a reduction of traction.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational