This is an open discussion on a poor performance of a Peugeot 103VS (Vario 1971 first generation).
The moped lacks of power runs very hot and has little acceleration.
I almost lost interest, I decarbonized the exhaust port, adjusted the timing etc..etc...
How much does a weak spark affects performance to this point ?
How would I check for compression (ideally 120 lbs/inch) ?
The engine almost seems to four stroke or choke.
I have a new starter coil, condenser and points ready to install.
Please help before I eradicate the engine all together and slap a Lifan 90cc on it instead.