Yea, right behind the engine is a grey plastic cover it has some(maybe 2) wing nuts on it. Take it off and you should see a zerk fitting. Dont grease it to much though, I think you can push stuff out of place.
Sorry I dont know the technical terms on anything.
It was for emissions. The 800 RFI was port injection and was used until 2005.
In 2000, they offered a 951 DI (direct injection) engine that was used until 2006.