1976 Harley Davidson FLH 1200 primary oil. What weight and how to check it?

The HD service manual doesn't say. Someone told me it is the same oil that circulates thru the engine, but that has to be wrong. I have oil in the tank, but she stopped dripping and makes noise, like the chain has gone dry. Is it 30 weight bath? does it recirculate? Fill it thru the oval foot peg cover plate or derby cover? Thanks for any info.1976 Harley Davidson FLH 1200 primary oil. What weight and how to check it?
Sorry Ryde On but your wrong about that year Shovel.Don't fill your primary with oil!That was a dry clutch for that year.You dump a quart of oil in there your going to have a slipping clutch.Believe it or not that was a closed system that drips oil onto the primary chain then vacuum in the engine sucks the oil back out of the primary to the oil tank.Not the best system for long engine life.Lots of guys get rid of it. Go look at this link it's a great site for getting answers for Harley related questions http://www.v-twinforum.com/forums/pre-ev鈥?/a>1976 Harley Davidson FLH 1200 primary oil. What weight and how to check it?
Andy's right on this one. the crank case breather hose blows 60w engine oil onto the primary chain through a fitting attached to the primary chain adjuster.


then it is sucked back to a Y fitting in the return line through a drain hole in the inner primary.


you have to take the outer primary cover off %26amp;adjust the primary chain occasionally.


if its making noise the nylon chain adjuster shoe may be worn out, better check it. its only 10 or 12 dollars for a new one.


you can get rid of all the extra hoses %26amp; fittings %26amp; run primary oil like an evo if you put on a crank breather %26amp; block the holes in the inner primary.
Drain it through the plug below the clutch portion of the case ,add 1 qt of 80/90 or primary chain case oil.





You can fill through either inspection cover.





The primary does not share oil and does not circulate ,it just splashes around.