Raptor 350 Oil Strainer and Oil Strainer Compression Spring (in regard to changing Oil and Oil Filter)
A quick note. One key element of having a great Raptor is maintaining the oil and oil quality. This is because the ENGINE and TRANSMISSION use the SAME OIL. And not only to LUBRICATE BOTH but also the oil has a cooling function. Lack of oil or lack of QUALITY oil can lead to many problems, such as excessive bearing wear, overheating, hard shifting, hot operating temps, etc. etc.
Use the manual or the oil change procedure listed in this previous post on checking oil. You should check oil before EVERY RIDE, EVERY TIME. Ensure the oil is at the right level and the oil is in great shape. Check this when BUYING a raptor too.
Oil Change and Oil Filter Change
Use the manual or the oil change procedure listed in this previous post on changing oil.
Oil Drain Plug Problem
I am still working out a plan to deal with this but I kept seeing people stripping out or damaging the oil drain plug on the bottom of the case. I didnt know why this was happening until I realized the drain plug on the bottom has to compress the oil strainer compression spring and it makes installing the plug VERY DIFFICULT. You have to apply alot of pressure on the plug due to the spring and I can see how easy it would be to strip the threads in the bottom of the case. If anyone has a trick that helps please post it. The best I have came up with is using my socket wrench to compress the spring slightly with the oil drain plug, thread the plug on a COUPLE threads, take off the wrench and use my fingers to thread the plug into the case, this way I ENSURE I am not cross threading or damaging the threads. Then I torque the plug with the wrench once I cannot turn the plug anymore.
You DO NOT want to damage these threads. Be careful.