961 Norton – Oil In Airbox
Download the complete PDF version using the green download button at the top right of this page for detailed Norton 961 airbox oil drain procedures and maintenance guidance. This practical workshop guide created by Richard Coote explains the common Norton 961 oil-in-airbox issue and shows the correct method for safely draining excess oil from the airbox drain hose.
The guide includes clear full-color photographs identifying the airbox drain hose location, proper drain procedures and recommendations for safely collecting and monitoring drained oil.
Detailed explanations are included covering the risks of leaving the drain hose unplugged, the effects of excessive oil entering the cylinders and possible oxygen sensor contamination issues.
The article also explains how regular airbox draining can help prevent rough running, black exhaust smoke and rear brake contamination caused by oil discharge during hard braking.
Contents Include
- Airbox drain hose location identification
- Safe oil draining procedures
- Oil collection recommendations
- Airbox drain plug guidance
- Rear brake contamination warnings
- Oxygen sensor contamination prevention
- Engine smoke and rough running diagnosis
- Oil level monitoring recommendations
- Daily maintenance procedures
- Norton 961 workshop photographs
Covered Norton Models
- Norton Commando 961
- Norton 961 SE
- Norton 961 Sport
- Norton 961 Cafe Racer
- Norton Dominator 961
