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850 Gearbox

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Have a '73 850, have a small (at the moment !!!!) problem when shifting from 4th to 3rd , not every time, but annoyingly it doesn't find 3rd needing a couple of tries before engaging the gear, very very occasionally this happens going from 3rd to 2nd, is this a major problem that needs fixing now ? Thanks Dave.

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Is the problem with the shift, i.e. you pull the gear lever up and it just moves freely up to the stop without engaging with the selector mechanism? If so, pull the outer cover and adjust the pawl spring.

If you can feel the lever engaging but it doesn't want to move then clutch drag can make the box reluctant to leave the gear it's in and, 'cos you're pulling up rather than stamping down on the gear lever, it can be more noticeable when shifting down. Try adjusting the clutch to the manual.

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Some gearboxes need you to hold the gear change lever up with your foot (assuming a down change is up on your bike) until you have released the clutch.

By the way, you don't play bass in Fairport Convention do you?

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Not only BMW, Stan.  My brother had a Yamaha DT175 that wouldn't go into top unless you  held the lever up until the clutch was released.

 



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