Tachometer falls to zero?

[Israel Hands]

at about 4500 rpms. 1987 rude 140, Teleflex Tach (origianl). Motor runs fine and appears to be charging the battery as usual. Just started doing this. If I reduce engine speed to idle, I'm good until I hit 4500 rpms again.

Pole selector switch on Teleflex is in correct position.

Any suggestions on this problem?

Thanks,

Israel Hands

 

[countvlad]

Re: Tachometer falls to zero?

at about 4500 rpms. 1987 rude 140, Teleflex Tach (origianl). Motor runs fine and appears to be charging the battery as usual. Just started doing this. If I reduce engine speed to idle, I'm good until I hit 4500 rpms again.

Pole selector switch on Teleflex is in correct position.

Any suggestions on this problem?

Thanks,

Israel Hands

mine used to do something similar .... your rectifier/ power pack is the problem...

try this http://forums.iboats.com/showthread.php?t=190636

i belive your motor has a water cooled rectifier... if not use this link to test it... http://forums.iboats.com/showthread.php?t=190638

if this dosnt help you prabably either have some wiring problem, which i doubt it, or tach i bad.... good luck ... keep us updated...

 

[ezeke]

Re: Tachometer falls to zero?

You may need to clean your wiring connections, especially the ground wires.