SOHC.co.uk Forums > CB500/550
Stripped bowl threads on carbs Helicoil guidance needed.
Bryanj:
Its NOT a standard tap Ted, its a special that has the m4 profile and pitch on a bigger diameter to accomodate the coil widthx2
McCabe-Thiele (Ted):
Thanks I understand that Bryan.
Bryanj:
I have never found any firm selling just the taps except heliciol original and they were expensive
DomP:
I had this exact problem Ted, in the end I cut a thread it in af far as i cold before hitting the carb body then trimmed a coil to fit. Not ideal as there is very little thread length to bite on but it's working for now.
ka-ja:
In my engineering past when desperate, grinding a taper tap back (short) is one way of creating a bottom tap, if you have a spare.
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