youre barking up the wrong tree Ben, The thing with the split pin...isnt that the pivot shaft for the pedal?
and the thing with wires is the stop lamp switch
when you eventually get to the bottom of this you'll have to adjust the stop lamp switch or the lamp may be on all of the time
Ben, the brake arm stop is usually a bolt with locknut, If you lower the brake arm in this way you'll have to slacken off the adjuster again at the end of the operating rod first, and re-adjust as reqd later
youve got me wondering now, i just looked in parts books for 175mx and 125mx and generally see differeny numbers listed for crank and rods! I always believed they were the same