HOLLzYWOOD
CB750 New member
I recently bought this 1972 CB750 Chopper bored out to a 8: 35 while riding the bike oil comes out of the tank cap there is no dipstick this is a aftermarket tank I was wondering if anybody could tell me why this is happening I change the oil out of the motor and drain the tank and added 3 quarts I have read it takes three and a half to 3.7 quarts but I only put 3 to see if it would still happen and it did any information would be helpful and useful thank you.