thats sad I know - I started fixing my own vehicles since I needed reliable transport on a limited income when I was young, I could not afford to spend much money and still have an unreliable machine. (who isnt broke when young!!)
The processes I wrote down are basic engine overhaul procedure - which I have yet not seen being accomplished in Pakistan. I literally had to BUY time from my work and studies - take apart the machine in the late hours of weekend nights etc. and then proceed to fix them during the week. Saved me a ton of money and got excellent results everytime.
Thats why I say - nothing can be done better if your own two hands do it. Because I have had pretty bad experiences with these so called ustaads. They dont even have proper tools to take apart the engine or even proper chemicals to seal gasketless joints.
I had become an example to the guy whom I bought parts from (Rizwan motors something - Yamaha seller). I rebuilt my engine a long time ago with the replica parts he sold me - I installed them with precision and it was all perfect and silent for many many years (not even spark plug troubles) uptil the time I sold it - (a good part of 7 years), I had travelled to many cities on it too, be it rain, storm, whatever - the bike never ever gave up even with my heavy load on it.
Rizwan motors (molana sb) would remember me as the only person who fixes his own RX115, large burly and rode a silver 115 that was very very silent - I mean the exhaust note sounded like a new suzuki SR21