It would be best to read the owner's manual to learn what the factory recommends. However, most Sportsters (depending on specific model) hold roughly 3 quarts of oil. It is recommended enough oil be added to the filter to soak the filter media, but not run out while it is being installed. Then, add enough oil to the engine to bring the level to the mid-way point on the dipstick.
1 & 1/2 pints
amsoil 10w 30 the best money can buy
The purpose of a Harley sportster gas tank is to add capacity on how much this brand of motorcycle can hold. These sportster gas tanks are also to offer a more updated and slick design for those that really love their motorcycle fashions.
Your 1976 sportster holds one quart of fluid. I use HD Sportlube or HD PRI ANDTRANS LUBE, but in the olden days I used a 20 wt non detergent motor oil. This fluid lubes the clutches and transmission gears and primary chain.
3 quarts
$1310.00
2.8 qts
The cost of the Sportster varies according to the age and features. A Sportster 883 L starts at around $7,500 while the Sportster 1200 begins at $9,800.
This depends on the motorcycle. My Harley Davidson Sportster is dry sump and the tank only holds 2.8 quarts. Most motorcycles with tanks hold about 3 quarts. 2 cycle motorcycles don't have motor oil. Its in the gas.
Says in manual 3 quarts but that is too much. More like 2 and 1/2 quarts.
1 quart of sport lube
Between 550 and 590 lbs, depending on the model