Reply To: Wrong drain plug for oil change
Make sure the “tip” goes in first, then put spring under the bottom of the tip that looks like a cup.
Then tighten bolt.
Do not start engine, yet.
Put rear of bike in a paddock stand so that back wheel is off the floor, then go on in neutral.
Try to shift gears, if 1st gear is selected, the wheel wont spin, then it should mean gearbox is engaged, go back in neutral spin the spin, then stop, shift to “2nd gear” after holding in clutch lever.
Hope this helps and good luck, i hope no damage was done to the gearbox as it would suck to strip the engine down.