Many Bullets, whether English or Indian, suffer from -Wet Sumping-. This is when oil drains through from either the oil compartment or the timing chest into the area within the crankcases where the crankshaft runs. This normally happens after the Bullet has been standing for a few days. This will result in some smoke and/or oil being pumped out of the existing breather pipe over the rear tyre or filling up the later style catch tank. It will normally clear up within a few miles, but the mess has already been made. Whilst we can not stop the engine from smoking, we can stop the oil from making a mess.

We have developed this superior breather modification which redirects the excess oil back into the oil tank and then allows the tank to breathe in the normal way. This is obtained by a simple but clever design of extension to the oil filler neck which also has the added benefit of making it easier to fill the oil tank from a gallon container.

This is simple to fit and is supplied with instructions. Currently there are 2 variations available:

90060 - Up to approx 2003 with push and turn oil filler cap.

90061 - Approx 2003-2004 with screw in oil filler cap and breather on left hand crankcase.

Note: We do not currently have a modification for models built after approx 2004 - without the breather on the left hand crankcase (below the cylinder barrel).