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  1. CBC

    Trouble shooting Garmin 140 fish finder

    I've checked for corrosion on the conection to the back of the unit.... sparklingly clean. The + and - wires are clean and tight. No breaks in the transducer wire. The screen lights up and all functions work, including the temp reading, but it doesn't scroll across the screen and I get no...
  2. CBC

    Premium Fuel?

    Someone told me that running Premium fuel (93 octane) in a 2 stroke would actually hurt performance.... is that true? Thanx, Crunch
  3. CBC

    Amazing fish

    I just installed a Garmin 140 and took it out for a test this weekend... seems the fish in our lake are attracted to my boat at any speed above planning. I mean these fish are fast... they congregate under my boat and can keep up with me at 30, 40 MPH !!!! but when I come down to idle speed...
  4. CBC

    Where to start...

    I finally got my old boat in the water, got a new tach on it and can't even get close to WOT. I have a 1975 Larson 1550 Shark tri-hull (dry weight 900 lbs.) A 1978 Merc. 800 (950 lbs) 18 gal. fuel tank 1/2 full (80 lbs) 2 guys (400 lbs) prop is al. 14x15 max rpm range is 5000 to 5500. The...
  5. CBC

    Mercury kill switch

    I have a 1978 Merc 800 and I got a after market kill switch for it.... unfortunatly it didn't come with instructions. On the back of the switch are 4 terminals, 2 labled coil, 2 labled magneto... what do you hook-up with what? I have a wireing diagram in my Seloc manual, I just don't know how...
  6. CBC

    Garmin 90

    Anyone using one? I'll mostly be in water less than 30 ft deep, any bad news about that unit? Thanx, Crunch
  7. CBC

    New water pump...

    I just had the water pump replaced on my 1978 Merc 800 and things at first looked fine... tattle tale was a nice strong stream. However, after just 4 hrs of running the stream went down to just a dribble. the pump was changed by a mechanic... is it possible I just have something plugging up the...
  8. CBC

    1978 500 water pressure

    I want to install a water pressure gauge on my motor but I don't know what the pressure range would be.... any Idea? Oh, I believe it's a high pressure pump? Thanx, Crunch
  9. CBC

    Pole setting for tach

    I have a 1978 Merc 800 4 cylinder 2 stroke I just put in the water and the tach (Airguide) seems to be reading twice the real RPM's (like 8000 RPM'S at 3/4 throttle?!!!) The boat really scoots and didn't blowup after an hour of testing so I'm pretty sure the pole setting isn't correct for that...
  10. CBC

    Merry Christmas all !!!

    I've been here once in a while to lurk but didn't bother to open a new account (after the format change my old account didn't work anymore).... well, I just opened a new one and hope to get to spend some more time here. Merry Chistmas and a happy new year to all, Crunch
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