The drive sprocket will/should have a punch mark on it, this will line up with a notch on the dissy shaft body, line them up and put the dissy into the block and engage the drive,(#1 must be at TDC on its compression stroke) the roter will piont towards the block (if memory serves). you will then need to check and adjust the timming, around 15deg at idle should be ok.
Scoring disabled. You must be logged in to score posts.