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BSA D1 bobber build
August 14, 2016 - 8:02 pm
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I'm starting to really hate my engine!!!
I got a new piston of Rex and I test fitted it to make sure the piston ring gap cleared the ports, the fitting with the arrow to the exhaust so front was a bit tight to one of the ports (see first picture)

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With the piston facing the other way it so pegs are the rear there was plenty of space so that's the way I fitted it pegs to the rear.

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After putting the engine all together compression was really good and I also fitted the new engine studs,

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but I was getting suck through the exhaust and blow out the carb so totally the wrong way round!!! The only thing that changed was the piston so thought ok let's fit it the way with the arrow pointing to the front and the pegs at the front, this was going well unit one of the securing clips for the piston pinged of down into the engine!!!! 😡😡😡😡
So I had to strip it and rebuild and seal it!!

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Back together, this time with the piston round the other way

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Went to kick start it and again suck from the exhaust and blow from the carb!!
Any help will be welcome before I set fire to it!!!!!!

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