On the oil, if riding in winter 10W-40 semi-synthetic is good and Motorex is as good as any. Summer riding change to 15W-50 if it is a hot summer (see temp range in manual). Semi-synthetic or full synthetic works well (I use Motorex 15W-50 in my 200 and Ipone 10W-60 full synthetic in my 390, both are tropical area rides) On filter kits you may Adjusting the chain. As for the chain cleaning, without removing the sprocket and chain - 3 easy steps: 1. Spray the cleaner and using a grunge brush/rag, thoroughly remove all debris build-up. 2. Wait a few minutes and then use a clean towel to wipe chain (removing cleaner liquid) 3. App Vay Tiền.

ktm duke 690 oil change kit