G'day MrMckay, They are known for their longevity. I haven't come across scored bores in these, no matter how dirty they are inside. The only one I scrapped had a broken ring, because it wasn't assembled right.
There are a lot of these in the USA used on commercial machines, hover mowers & snowblowers. Here is a thread in America discussing Suzuki or Toro 2 cycle engines.
http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/1868612/1Chris, thanks for the tips, I use this to seal the crankcase.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2014/11/full-4730-18605-suzuki_4_3.jpg)
In the 2 manuals I have, one states:
5. Assure both halves of the crankcase are clean and free of grease and old sealant.
Apply a thin uniform amount of Threebond #1104 or Loctite #515 sealant to the mating surfaces and position the crankcase halves together.
The other manual: recommends Suzuki bond no.4.
Christo, love the filter. That one will need to pulled down and cleaned out.
The reason these engines fail is:
1. Air filter as above
2. Choked fins stopping cooling
3. No oil in the fuel
A lot get discarded because they have diry carbs and water in the tank.
I live in a rural area, and ones I get are not good, I'm sure somewhere on the mower is says please trash me.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2014/11/full-4730-18606-trash_me.jpg)
Below is what I came up with for the snorkel.