Old HR215 FB hydro walk behind
The deck has: MZAM-6030934 HXA .....&...HR215 KM. This mower was bought years ago, can you tell what year it is? The engine #'s: GJAB-6048091....GXV140-135cc. Me and my 2 brothers bought this for my Dad as a Fathers Day gift and has run great for many years but started to get hard to start and smoke a little. The front wheels/height adj mechanisms might need complete replacement also.....I was planning on opening it up and put in new rings and re-seat the valves and see if anything else needs to be replaced. Can you suggest what to look at and what you think I should replace while I have it open,(if I get it open)?