Out and About on your Laverda.No bull,Just photos

What sort of vibes are you getting? Shouldn't be anything too severe. They can be very smooth if the crank has been done well and everything is in good nick (good, even compression for eg).
 
Loads of variables in the 750s. Often over-looked is crook phasing of the cam halves, sometimes even the crank. Always worth checking before starting on a rebuild.

piet
 
I have seen one where a rear gearbox mount (top) had vibrated off, (750SF3) it had about a 3mm gap adjacent the weld, that one shook a bit, but on investigation the bolt and the bolt hole where a good fit, so I have no idea how it was assembled in the first place, but it was, a simple rapair, very glad the crankcase hadn't snapped, vee the edges and weld the joint, fixed it for as long as I knew about the bike, but it still vibrated, which is indicating something else.
CLEM
 
sfcpiet said:
Loads of variables in the 750s. Often over-looked is crook phasing of the cam halves, sometimes even the crank. Always worth checking before starting on a rebuild.

piet
Click to expand...
My S crank was around 357° dixit Phil Todd at the time.
It's now as smooth as a baby's bottom.

Paul
 
Paul Marx said:
My S crank was around 357° dixit Phil Todd at the time.
It's now as smooth as a baby's bottom.

Paul
Click to expand...
Dixit as in the board game or the actress Madhuri Dixit?

Jim

libellud-dixit-card-game-english-edition.jpg

madhuri-dixit-203426-q68L75bF.jpg
 
Innaresting about out of phasing on SF cranks - with that rammed splined 'undisassemblable' centre I woulda thought the factory could get it right. Not quite sure how you'd correct it if you reuse the same centre and the same webs, because the splines are already aligned incorrectly. SFCs are on a non-splined sold pin as are the triples. Getting it right without a jig like Red's isn't easy. I don't mind if my 270 is 269 or 271 - as long as you compensate the cam and ignition accordingly.
 
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