1972 Ski-Doo Shop Manual, Page 214Get this manual
3-04-08 3Temporarily attach the red and black test leads together MERCO-O-TRONIC
4Connect the red test lead to breaker points terminal
4Adjust meter set scale No.6 to set line on right side of dialUnclip test leads
5Connect the red test lead to breaker points terminal6Connect the black test lead to armature plateMeter pointer must be within OK green block on scale No.6 on right side of meterWhile testing, move and "wiggle" the condenser leadObserve meter pointer for movementLoose connections can cause trouble if the condenser is subjected to vibrationIf meter pointer remains within OK green bar on scale No.6, the condenser is goodIf meter pointer moves into the red section on scale No.6, the condenser is defective and must be replaced (fig
5Connect the black test lead to armature plateThe meter pointer must return within the OK blockIf the meter pointer is in the high resistance band, this indicates that there is foreign matter between the breaker points (fig3-4-16)