Ignition Timing Advancers are mechanical 'bolt-on' pieces to advance the ignition timing of the engine to a specific degree of timing advance. The majority of its application for these parts are for motorcycles or on racing applications.
pree ignition timing is advanced
6 degrees advanced, or BTDC.
6 degrees advanced, or BTDC.
4, to 6 degrees advanced or BTDC.
6 degrees advanced, or BTDC.
check the timing it may be advanced
It sounds like your ignition timing timing is too far advanced. It will need resetting.
4, or 6 degrees advanced, or BTDC, depending on your altitude.
6, to 8 degrees advanced, or BTDC., will work best.
Right around 6 degrees advanced, with todays pump gas.
Base ignition timing is 5 degrees advanced +/- 1 degree. I've attached some links below for additional information.
yes, backfiring is always due to ignition or timing problems. Backfiring through the carb can be a symptom of a lean condition.