New Airguide Speedos

[Scotty Mac]

I just installed two new Airguide Speedos on my '93 SNOB and they work very well once the boat is under way, about 10-15 mph. What's my next step? I've replaced the airlines, but did not bypass the "shock tubes" behind the gas tank. What are those things? Should I have bypassed them? White Like thought I should not bypass them unless they were bad. Also, did not replace the pitot tubes. Any suggestions are appreciated.

[jhersey29]

Which pitots do you have? The skidim tournament ones are a nice upgrade from the teleflex. http://www.skidim.com/prodinfo.asp?number=769B.

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[s_kelley2000]

Where you able to use the two existing holes and then just add a 3rd hole? Or did you have to patch any holes from the original pitots?

To the OP, I assume your speedos are reading accurate speeds once they start working? If not maybe it is as simple as adjusting the calibration so that it picks up the first 10-15 mph. Also check that there is nothing clogged in the pitots.

[jhersey29]

The skidim link has added pictures of the small modification needed to make them use the existing holes.

[s_kelley2000]

Thanks I see it now. Mine rarely gets clogged but good to near there is an improved design out there.