Blade84, did you feel that your car have high fuel consumption in the same time~? I believe it is cost by the contact point wornt out already, it must be replace after a period, you can try to ask workshop to help you to replace the contact point. In the same time, clean up the carburetor will restore your engine performance too.
You can also try to replace the distributor to sensor type distributor, there will be no more replace the contact point problem again. It is about RM50 a halfcut sensor type distributor.
Last, please have a look at the side of the air filter box, you can see a hole there, try find some thing to seal the hole, b'cause this hole will suck in the air out side by pass the air filter direct into the carburetor, in long term it will damage your engine and carburetor, so becareful~!