SOHC.co.uk Forums > CB500/550
550 F2 started!
Laverdaroo:
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Laverdaroo:
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Oddjob:
Roo looking at those pics IF the funnels went onto the carbs fully the dome nut would hit the choke mechanism stopping it working.
It also looks like the funnels clamp onto the tube causing the problem, maybe try releasing those little grub screws and moving the funnels forward and then clamping them back up, try that and see if it solves the problem.
I'm not keen on those boxes BTW, the idea is that the funnel gives an airtight seal OR the carbs will pull air from anywhere, if that means it pulls air from any gaps between the funnels and the carbs it will mean unfiltered air is getting into the engine and that causes wear your not going to like. How tight are they onto the carbs? maybe try a small piece of rubber around the carbs if there's a gap.
Bryanj:
Looking closer i think the inner bits are held tight into the outers by the smaller grub screws in which case you could remove theouters and shorten the inners
Laverdaroo:
Yeah, they are Bryan. They come apart pretty easily but not that impressed with the fittings. All the machining is spout on bar the fit but the grub screws are crap.
I’ve taken half a mil off the inside to get em to go on with some Abram et cloth hot glued to a soft buffing wheel I’ve got for the drill. Worked a treat. I’ll put the miss fit down to yer man over the pond, knocking his dial on the lathe. Easy done but what a ball ache!
Bigger o rings installed to reduce air leaks if any are tempted but I might get em tigged together to be sure at some point, dunno.
Anyway, they’re in snd they fit.
Best job, callipers to clean and get sorted….
Onwards and onwards……..
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