if thats yours in your avatar (the dirtbike) i dont see any problem with jet washing it, but beware paint may stips if it is too high powerd! you have been warned! a good product to use are muc-off degreaser, works wonders on engines and inbetween the swingarm, makes them look like new! just follow instructions on bottle as i cant remember them. just as a general clean, this is what i do: wask with warm water and car/motorbike soap wash with warm clean water to remove suds dry with a towel (letting it dry on its own will leave marks, but will come off in polishing) polish bike with auto glym arosol polish (spray onto a rag and buff away, doesnt leve any residue) and your done i roughly only wash my bike every month in the summer, but in winter its best to do a quick hose down everyday due to salt on the road. hope this helps