NHTSA Campaign Id 79V065000; Date: Mar. 5, 1979
1979 Honda CB750
Component: Engine And Engine Cooling:engine
Manufactured by: American Honda Motor Co.
Affected Units:: 5,700
If the countershaft oil seal is subjected to extreme oil pressure variation, the countershaft oil seal may be split, allowing oil to leak. Leaking oil can come into contact with the rear tire, which can result in traction reduction.
Countershaft oil seal will be replaced and a modified "oil path body" will be installed to reduce the oil pressure at the countershaft oil seal. Repairs will be performed at no charge to owner.
Vehicle description: motorcycles. System: engine and engine cooling; counter shaft oil seal. Consequences of defect: reduced traction can result in loss of vehicle controland a vehicle accident. Note: do not ride your motorcycle if there are signs of engine oil leakage atthe transmission countershaft. Ride at low speeds if you must ride vehicle todealer for repairs.
Date Owners notified by Manufacturer: Apr 2, 1979
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