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Old 27 September 2015, 13:58   #1
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Optimax 150hp
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Old 27 September 2015, 13:59   #2
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Can anyone help me with the size of the bolts here labelled 27?
I have an ultra flex helm which is bolted on at this point and the M4 bolts I have tried work their way loose which suggests they may be UNF?
Does anyone know for sure?
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Old 27 September 2015, 15:45   #3
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Workshop manual any good?

If so we have em here Boating Resources

Chris
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Old 27 September 2015, 19:53   #4
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Thanks Chris
I've managed to find the correct info, 1/4" UNF is the correct bolt.
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