Please advise. This is my first Penton, 1974 125 Six Day with Sachs engine. Heard alot about missed shifts and now am finding its true. Can upshift and feel it do everything but engage. I upshift 2 or 3 times and miss all gears. When I down shift it appears to be in 4th ot higher gear. Can someone shed some light on a fix?
Needs to be adjusted at the least but if it is worn the shift key may need replaced. I think you can search here on shift adjustment. Selector key replacement is a bit trickier not that adjustment is simple by any means.