What causes weak spark on a pw 80?

Where can one purchase Harley Davidson pins? Can you use car oil in motorcycle engines with wet clutch? How does the vacuum work on the petcock suzuki vinson 500? How do you put a mini bike engine on a bike? What type of motor oil does the suzuki intruder take? If im mixing 500 mls of petrol at a 25 to 1 how much oil do you put in? How big is 100 grit? How do you change oil in your 1983 Honda goldwing? What is 32 1 gas mixture what r the measurements? What do you need to do to import a Big Dog motorcycle into BC? Where Is the Honda fes pantheon battery located on the bike? What kind of Heat-resistant paint for motorcycle engine? How do you remove the battery from a Yamaha Virago 535? What is the Hydraulic fluid for the Bad boy mower? Why was the dirt bike invented? What years were xr1000 sportster made? How 70cc bike go faster? What is the top speed of the arctic cat thunder cat 900? What is the spark plug gap for a 2003 Yamaha R600? What does the yfm on a 250 raptor stand for?