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bsa b40 jumps out 1st gear

bobtlr
in Pre-65 Bikes

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Hello,

my bsa jumps out of 1st gear, it has been running for 5 trials since opening the engine without problems.

now suddenly it jumps out of first gear what could be wrong?

2nd gear seems to be fine 3th and 4th too.

when i run around in low revs it seems to be fine but when i go uphill and give it some throttle it jumps in neutral

it doesnt make scary noises just clik and out of gear.

anyone can give me some hints where to start? i need the bike next weekend for a trial so i have to work fast.

anny help apreciated!

best regards bob

  • Quote

    I'm struggling with a similar issue on a C15. See the post above. I have it apart again and noticed that the shift forks look interchangeable. Could you have switched yours when it was apart. One may be bent or worn differently than the other.

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