99' Capri 1750 tachometer / fuel gauge issues

jkm2730

Cadet
Joined
Jun 3, 2006
Messages
8
Just got my new, to me, boat out today and noticed the following things:<br /><br />The tachometer jumps around. Its not dead and sometimes I think it pretty close to correct but it would sometimes be between 5k and 6k when we were just doing 5-10mph. Sometimes I could toggle the bilge pump on and off and the tach would partially or mostly recover and then work for a while but never 100% of the time.<br /><br />The fuel gauge worked fine when we were filling up the tank as I watched it go from 1/4 to 3/4 during our stop at the gas station. While under way the fuel gauge just continued to jump between maxed out and 3/4 or as the fuel level started going down it would jump between 1/2 and full. Now while sitting in the driveway the fuel gauge reads solid between 1/2 and 3/4.<br /><br />All of the other gauges seem to operate good and appear stable during operation.<br /><br />Any ideas?<br /><br />thanx,<br />jeff
 

SpinnerBait_Nut

Honorary Moderator Emeritus
Joined
Aug 25, 2002
Messages
17,651
Re: 99' Capri 1750 tachometer / fuel gauge issues

Boat Questions and Topics (non engine topics)<br />Welcome to iboats.
 

Beaverfan

Recruit
Joined
Jul 26, 2006
Messages
2
Re: 99' Capri 1750 tachometer / fuel gauge issues

Hey Jeff. Fuel gauge is going to bounce quite a bit depending on if you are throttling up or down, on plane or coming onto plane. Mine does the same thing. If I am going steady on plane and not taking on rough water the fuel gauge stays somewhat fixed but does move some. I have a 2001 Capri 185.

As for the Tach, I had the same problem one time and was concerned. I checked my wiring and everything seemed to be in line. Then the problem simply stopped and I have not had it reoccur.
 

yelladog

Seaman
Joined
Jul 31, 2006
Messages
65
Re: 99' Capri 1750 tachometer / fuel gauge issues

I have the same problem with my tach, same boat same year. My tach is stuck at about 1,500R.P.M. I never did find the problem. Bad tach maybe.
 
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