Throttle

My brother has a lovely Norton Commando, 72 I think. Anyway the bike had a recent oil change however between draining the old oil and refilling, several days had gone by. Now the oil return line sputters a little oil and a lot of air when the engine ticks over. Also, the filter was replaced, he is rechecking the unit to ensure it is the correct one. We suspect there is an airlock in the oil system somewhere. Any suggestions on how to get the old girl to pump oil again?

Thanks.

For you ChCh riders, Dyers Pass has been resurfaced recently and has loose grit and gravel making cornering somewhat treacherous. Rode up it tonight and found the first 1/3 of Dyers Pass had been resurfaced. I expect the remaider may be completed in the next few days. If you are riding down Dyers Pass you may "discover" the new surface suddenly, take care.

Cheers.