This Forum is now CLOSED use the link to get more details viewtopic.php?f=3&t=13924#p102587
By davet68
I'm reading conflicting info on oil type/ grades.for my 1939 350 model C
Which oil for the engine
Which oil for the gearbox
Which oil for the primary chain case

I'm sure many of you will know the answer but all I can find is grades for more modern machines.

Thanks in advance

Shop for accessories at Hitchcocks Motorcycles