BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: Saltydog42 on 05 Feb, 2019, 14:00

Title: A10 Magneto pick ups
Post by: Saltydog42 on 05 Feb, 2019, 14:00
Please can someone confirm which ramp on the cam ring feeds to which pick up?
ie if heel of contact breaker is on bottom cam will this trigger spark via left or right pick up when looking at contact breakers?
Title: Re: A10 Magneto pick ups
Post by: RESTORER on 07 Feb, 2019, 10:05
Hi Saltydog42,  assuming all the timing marks have been lined up to time the offside piston, when that piston is correctly positioned for timing (11/32 BTDC on my A10 GF, but it does differ model to model) the ramp is using the bottom cam and feeding the RH (lower) pick-up when looking at contact breakers. Restorer.
Title: Re: A10 Magneto pick ups
Post by: Saltydog42 on 07 Feb, 2019, 13:26
Hi
Many thanks for info -will double check I have it right.