Bought this bike on 3-6-2011, after touring and enjoying beauty of Pakistan on this machine for almost 4 years i finally decided to swap engine to bigger displacement as a i tumbled upon a good deal.
My bikes engine was already in a bad condition, as it was consuming oil and didn't go beyond 100km/h most of the times. Nonetheless the engine was still performing well and would have served me good for another 1 years without any major problems.
I seized this opportunity to get a 250cc engine from Lahore via link of @vickytulla. Another reason to opt for engine swap is a bolt on fit. i didnt wanted any changes in frame so it was a good opportunity.
I will start this thread in sequence so that everything is clear and give proper instructions, do and dont's in case someone is willing for a swap.
I started assembly at home, getting instructions from Waqar Ahmed, firstly i needed to change ignition coil so that all the electrical systems, CDI etc will work properly without spending any money on changing CDI etc. so i took out the magnet cover
Bigger displacement engine requires a bigger carburetor, Ravi piaggio 125 comes with pz-27 carburetor. so i changed it to PZ-30 which is easily available and is normally available at rickshaw spare parts shop
Cranked the engine and the self was not working :/ so i gave direct current to self but still it was unable to start for unknown reason. So i ad to tow the bike to electrician. He spent 2 hours and finally self was working. but the self unit was all worn out. so i had to purchase new self unit for 800rs, easily available with rickshaw part dealers