Do this and youll get #1 TDC no matter what you got going on down there hardware wise: remove all spark plugs.
take a drumstick or pushrod, stick it in #1 sparkplug hole until it hits something and wedges in there, now hold it. turn the crank clockwise with a wrench slowly, if the drumstick moves up, keep turning until it wedges solid on an upstroke (may have to wiggle it to get it to wedge) MARK THE DAMPER @ TDC. Now KEEP THE DRUMSTICK IN ITS WEDGED POSITION and turn the crank backwards 3xx degrees until it wedges again on same drumstick, MARK THE DAMPER @ TDC. Now make a mark exactly between these 2 marks on your damper, that is your damper TDC mark...remove drumstick and rotate to align center mark with timing tab TDC. Your there. Find your compression stroke and you got ignition #1 TDC. Piston stop does same thing but is threaded in and you dont have to hold it.....and is kinda hard to find to fit a slant as it needs a long reach.
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