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front sproket seals

bondy
in Bultaco

Featured Replies

On 12/21/2020 at 3:53 PM, BPursang_ro said:

Looks like the copper guide bush is worn out

There are two of these bushes in the sleeve gear - your pic. shows just the outer one. As woody says, you have to dismantle the engine to replace.

You may well  find corresponding wear on the gearbox mainshaft.............  

1240028971_Bultaco5spd.gearbox-weartomainshaft-model80.thumb.jpg.2b11e098a519d5e5ab2f7e1ca353b0be.jpg

When you re-assemble fit a felt seal (part #414-052) as mentioned by on it.

Good luck with the repair.

 

  • Quote
    • Like 3
    • 2 years later...

    Thanks for tour help.

    The engine has been split, mainshaft adjusted and new bush custom made. 
    Since the engine was open, a complete revision had been done.

  • Quote
    • Like 1

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