The contact details are
Motasun Engine Company Inc
Mahmutbey Yolu, Kirazli Koyu
Telephone (+90) 212 - 550 45 62
Facsimile (+90) 212 - 550 25 19
Summary Diesel Engines, Electric Generators, Motorpumps, Marine
Nothing was coming up for Motosun Engine Company, apart from a hobby
firm and since there was no companies in Turkey or Instanbul of that
name, I tried the following strategy.
"istanbul" "engine Co." This brought in the required answer in the top
three hits with a slightly different spelling, that is why you were
having a problem finding it.
I hope this helps.