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  1. J

    throttle cable stretch or adjustment

    Can anyone tell me how much travel should be in the throttle cable before it engages at the motor. My throttle goes about 1/4 forward before the slide at the motor moves. I have a 1979 Mercury 700 running max 4800 RPMS WOT with a michigan prop numbers 03/10/10 I thought a lower pitch prop might...
  2. J

    prop pitch

    Back for help again, can anyone tell me if there is anyway to tell the pitch on my prop. I have a 1978 mercury 700 OB 70HP. The only identifying marks on the prop is the letter R. Any help as always is appreciated.<br /><br />Joe B.
  3. J

    no spark

    I'm still at I spent the day making a new engine harness after I noticed most of the old wires were really old. The insulation was flaking and there could have been shorts at several locations. In any event on my earlier post I thought I may have had oil mix and fuel issues because the motor was...
  4. J

    1978 mercury 700 3cyl oil/gas ratios

    Hi, back again. I am getting a little confused on my oil to gas ratios for my 1978 mercury 700 3cyl 70hp. I have read 50:1 36:1 and 24:1 ratios. My problem is the motor runs great in nuetral and bogs down in gear. Sometimes it will run good and other times it just bogs dow. I changed the bubble...
  5. J

    no reverse

    Help info needed, I have a 1978 mercury OB 700 , 70HP. I had the idle too high and put it in reverse, the motor jumped up a little. I didn't pay too much attention at that point. Now it rev's ok in revese but just sits there. Forward is ok no grinding no noises or anything unusual other than no...
  6. J

    help with mercury 700 what year

    I bought a used Chaparral with a mercury 700 outboard. The dealer listed it as 1987 motor. The ser# is 4716837 all info I can find on this motor indicates it might be a 1977 motor. Any help would be really appreciated.
  7. J

    Reverse problem

    New to outboard controls and I accidently put the shifter into reverse at high engine RPM's. The motor was not locked down so it jumped up a little. I didn't pay too much attention until I tried to go in reverse. The engine runs well and increases RPM's when increasing the throttle. With the...
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