Tach/electrical acting up

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Basin_Runner355
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Location: St.martinville , Louisiana

Tach/electrical acting up

Post by Basin_Runner355 » Sat Sep 02, 2017 5:56 pm

I was doing some tidying up last week and my old shcool white running light on the back of the cage doesn't work so I cut the wire and taped it off and took the light fixture off well I used it this weekend went to take off and.y tach is now showing I'm turning over 6,000 rpms when I dint mess with prop And. Now when I turn on my running lights it blows a fuse?! Always something with an airboat any help would. Be appreciated
14ft diamond back mild zz4 355sbc pushin 450 hp 450 TQ 2:1 belt drive reduction with a 3 blade sensenich 78Jw series

Scarecrow
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Location: west palm beach to sebring

Re: Tach/electrical acting up

Post by Scarecrow » Sat Sep 02, 2017 6:26 pm

Check your grounds.

Lwells
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Location: okeechobee

Re: Tach/electrical acting up

Post by Lwells » Mon Sep 04, 2017 7:36 am

I would think your hot wire to the light you took off is grounding against something since when you turn your lights on it blows the fuse but that would depend on whether the light you took off was wired on your switch with other lights. It may not have anything to do with tack problem but I agree with other post on tack.

Basin_Runner355
Southern Airboat Member
Posts: 202
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Tach/electrical acting up

Post by Basin_Runner355 » Wed Sep 06, 2017 9:25 am

Found my fuse blowing problem wire was cut and rubbing on the cage

Tach still acting up with you turn the key on it the needle jumps up to like 150 with out even starting the motor
14ft diamond back mild zz4 355sbc pushin 450 hp 450 TQ 2:1 belt drive reduction with a 3 blade sensenich 78Jw series

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Rick McC.
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Location: Weeki Wachee, Fl

Re: Tach/electrical acting up

Post by Rick McC. » Wed Sep 06, 2017 11:13 pm

Basin_Runner355 wrote:Found my fuse blowing problem wire was cut and rubbing on the cage

Tach still acting up with you turn the key on it the needle jumps up to like 150 with out even starting the motor
Sounds like it's getting to be time for a new tach.

They don't last forever on boats.
"Sights are for the unenlightened."
Rick
http://guntipsandtalk.com

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