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Primary/Transmission/Driveline/ClutchFind answers to general powertrain, primary and transmission. Have clutch issues and need suggestions? Post them here.
First time Harley owner and new to forums. Hopefully I'm in the right place for my question.
Serviced my 88 before winter. I have the owners and mechanic manual. All say primary takes 32oz, as does threads on this forum. The manual also says "don't fill past the bottom of inspection cover". I interpreted this to mean 'about 32oz, until reaches the clutch inspection cover.' So I kept pouring another half a quart, and still fluid never reached inspection cover. Did I screw this up? If yes, should I drain completely and refill with just the 32oz, or is extra half quart fine? Clutch and trans feels great, better than before the fluid change.
Forget about how many ounces, wet, dry whatever, just fill the primary to the proper level.
If you overfilled it, just pull the plug and let some drain out.
Here is the proper level for primary lube, bike standing up straight (this is the correct level for all big twin primaries since mid 1984). It won`t hurt a thing if it is a little low.
Last edited by Dan89FLSTC; Dec 30, 2022 at 04:32 PM.
Fill to the bottom of the clutch basket. Don't go by a particular amount, you need to actually look down inside the primary cover and verify the level. Maybe it feels ok now but once it gets warm you'll probably find that the clutch is dragging and that'll make it hard to find neutral. Bottom of the derby cover hole is way too much oil.
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2005 ElectraGlide - took too much primary fluid
