You're now ready to add the transmission oil specified by the OEM, by slowly and carefully adding it through the funnel.
GEAR OIL IN HARLEY TRANSMISSION MANUAL
The setting for this is usually about 15-17 pounds, but always check with your motorcycle's manual to make sure you get this right. Once the old oil has drained away, smear a little oil on the 'O' ring, replace the drain plug, and tighten with a torque wrench. You should also check the 'O' ring on the drain plug, and replace it if it shows any signs of wear or cracking. While the oil runs into the drain tray, it's a good idea to wipe off the drain plug with a rag before putting it somewhere safe as the built-in magnet most probably has a small amount of metal filings attached, and you don't want to re-introduce these to your transmission. Now you're ready to remove the drain plug, using an Allen key. Next, remove the fill plug at the top of the gearbox with a wrench and place this somewhere safe. Then locate the oil drain plug, which is underneath the bike and between the shock absorbers, then place your oil drain tray underneath. Once you've done that, park your motorcycle on level ground, using its centerstand or a paddock stand. It's good to have warmed the bike up a little before you start the oil change, as warm oil will drain out of the transmission more effectively.
GEAR OIL IN HARLEY TRANSMISSION SKIN
We also recommend that you wear disposable latex gloves to protect your skin from the irritation that oil can sometimes cause. Once you've bought the appropriate transmission oil, you'll need an oil drain tray, a long-necked funnel, a set of Allen keys and a torque wrench. Your manual will tell you if this is the case, and you can also use Castrol's quick and easy Oil Selector tool to find out if you need separate gearbox oil, and if so, which specification you need. These bikes are most commonly of a 'pre-unit' construction, meaning that their transmissions also need regular oil changes. So the good news is that for most motorcyclists, once you've changed your engine oil, you've changed your transmission oil too.Įxceptions to this rule most often come in the shape of classic motorcycles from brands like Triumph, Harley-Davidson and Buell. New riders are often surprised that the transmission generally uses the same oil as the engine. If you read motorcycle maintenance forums, this is a subject that causes a lot of controversy. How to change gear oil in your motorcycle